Following last week’s Met Office amber extreme heat warning, a polymer specialist has warned current sustainable design must mitigate overheating in buildings as heat waves become more prevalent. Recent research of 520 M&E contractors and architects, 130 of which worked specifically on apartment buildings, in REHAU’s report ‘Designing Healthy Apartments,’ also raised similar concern. Efficient cooling methods The majority of these respondents felt that sustainabili...
With recent regulations mandating more fire safety precautions be put in place around building services, a polymer specialist has released a Class B fire-rated pre-insulated pipework solution for quick installation in high-rise buildings. Following previous developments such as the 2018 Hackitt Review and the Government’s July announcement of legislation appointing a new regulator for safety in buildings, there is even more emphasis on building compliance from developers and contractors....
GrayWolf’s DirectSense® II probes will now connect via Bluetooth LE wireless to Apple and Android devices. Their highly reliable, adaptable DSII probes for Indoor Air Quality (IAQ) and Toxic Gas testing/monitoring will imminently have Apps for iOS and Android operating systems available (free) on the Apple and Google App stores. Use smartphone or tablet as a multi-parameter display, data-logger, and far more. Indoor air quality Choose from over 25 highly accurate, smart indoor air q...
The EME3625MD, a new, 3-inch deep, stationary Ruskin louver, approved by Miami-Dade, for its wind-driven rain resistance, is designed for structures in high-velocity hurricane zones that require louvers with basic impact protection. EME3625MD louver Mechanically fastened to add to its strength, the vertical louver also offers improved air and water performance over Ruskin’s previous Miami-Dade approved model, the EME3625DFLMD, and is AMCA 540 (Missile D) and 550 listed. We designed the...
Secure I.T. Environments Ltd, one of the UK’s design and build companies for modular, containerized, and micro data centers, announces the completion of a new UPS room, Air Handling Unit (AHU), and air conditioning upgrade at Principality Building Society in Cardiff, Wales – A mutual building society with over 500,000 members and 160 years of experience. With existing AHU and sensing equipment approaching the end of life, Principality wanted to upgrade to equipment that would offer...
Johnson Controls, the globally renowned company for smart, healthy, and sustainable building solutions, has significantly upgraded the testing lab facilities at its residential HVAC manufacturing plant in Wichita, Kan. upgrading HVAC testing facility The nearly US$ 15 million investment includes the addition of seven test chambers, automated testing and model shop equipment, and a new building, which adds 2,000 more square footage space, bringing the plant’s total testing facilities to 1...
The Board of Directors of BELIMO Holding AG has appointed Dr. Adrian Staufer as the new Head of Group Division Europe and Member of the Executive Committee. On January 1, 2022, Adrian Staufer takes over from Lukas Eigenmann, who, as communicated in February 2021, has decided to step down from his current position by the end of 2021 after more than 36 years with Belimo. Lukas Eigenmann will continue to support the Group as a Senior Advisor. Adrian Staufer has been employed by Belimo since November 1, 2016, initially as Business Development Manager Sensors. On January 1, 2019, Adrian Staufer was appointed Head of Strategy and Brand Management and a Member of the extended Executive Committee of the Belimo Group. Work Experience Adrian Staufer has the necessary prerequisites to lead the Group Division Europe to a prosperous future From 1998 to 2011, Adrian Staufer was working at Siemens Building Technologies in various positions, amongst others, he was leading the global Business Segment OEM Air Conditioning & Refrigeration. From 2006 to 2011, he lived in Beijing, China, where he, as Vice President of Controls Products & Systems, Asia, built up the local development and production for HVAC controls products (heating, ventilation, and air conditioning) for Siemens. After returning to Switzerland, Adrian Staufer worked from 2011 to 2016 for Schindler Elevators in Ebikon, Switzerland, most recently as Vice President of the Internet of Elevators & Escalators and Remote Services. Education Dr. Adrian Staufer studied Electrical Engineering (Bachelor) and Industrial Engineering & Management (Master) at the Swiss Federal Institute of Technology (ETH) in Zurich, Switzerland. Additionally, he has a Master in Advanced Manufacturing Systems from the Brunel University in London, United Kingdom. From 1994 to 1998, Adrian Staufer completed his Ph.D. in Innovation Management at the Swiss Federal Institute of Technology (ETH) in Zurich, Switzerland. Smooth transition With his impressive experience in the areas of HVAC (Heating, Ventilation, and Air Conditioning), building technology, Internet of Things, his international leadership background, and the exemplary living by Belimo values, Adrian Staufer has the necessary prerequisites to lead the Group Division Europe to a prosperous future. The Board of Directors thanked Lukas Eigenmann for his very successful engagement as Head of the Group Division Europe and for getting Adrian Staufer off to a successful start in his new position to ensure a smooth transition.
An experienced industry professional with extensive knowledge of data center services and solutions, Walzel has invested more than 20 years in the mission-critical industry. After launching her career with Honeywell, she has worked in progressively senior roles with Schneider Electric, Emerson Network Power, Stream Data Centers, and Vertiv. In her new role, Walzel will lead a global team of sales professionals serving customers directly and through an established partner network.“We’re extremely proud that Simone has joined us,” said Joachim Schulz, Commercial Director, Global Building Business. “She is an experienced data center professional and the perfect leader to take on this opportunity”.
One thing is certain, optimal data center design is a complex puzzle to solve. With all the options available, no one environmental control system can fit all situations. One must consider all the solutions and technology available to best manage assets and adapt to the evolving data center. There is a precision cooling system for whatever scenario best fits one's current strategy or future goals. The question only remains, has one considered each of the options with the design engineer and the environmental control manufacturer? The two need to be in synch to help maximize the return on investment. In most instances, if one wants an environmental control system that scales with your needs, provide the lowest energy costs, and provides the most reliable airflow throughout the data center, a variable-speed system is the best solution. Nevertheless, one may be curious about what other options may suit the current application. Precise Modulated Cooling Companies need to decide on their strategy and design for it. When one knows they have swings in the load – seasonal, day to day, or even from one corner of the data center or electrical room to the other, one should consider variable speed technology. A system with variable speed technology and accurate control design modulates to match the current cooling load A system with variable speed technology and accurate control design modulates to precisely match the current cooling load. This precision gives the variable speed the highest efficiency at part-load, which equates to a greater return on investment. In other words, when the data center is not running at maximum cooling load a variable speed system will use less energy and save money. If one thinks of the cooling output of the environmental control system as the accelerator of a car — one can press the pedal to almost infinite positions to exactly match the speed one wants to travel. One is not wasting energy overshooting the desired speed. A well-designed control system also ensures a smooth response to a change in load. Further efficiency is gained by accelerating at an efficient rate for the system. Advanced Staged Cooling Looking for something that offers a portion of the benefits of a variable speed system but at a reduced first cost, a multi-stage cooling system can be a good compromise. A multi-stage system will manage some applications well and can reduce overcooling space — as-built today. If one needs greater turndown than what a fixed speed system offers, then this is a good choice. If one finds this to be the right-now solution, one is in good hands. The system is more advanced than a fixed speed unit; it is developed with a level of design optimization to transition its small steps. Unlike digital scroll, this accurate solution, with two-stage compressors, has high part-load efficiency. Example Think about the car accelerator example again; there are many positions to move the accelerator to with a multi-speed system. With two-stage compressors the positions are precise and repeatable, meaning one can smartly change positions to prevent overshoot, and one is more likely to have a position that matches the speed that is desired. Although the return on investment is better with a multi-stage than a fixed-speed system; the benefits are less than with a variable speed system. Fixed-Speed Systems Some consider the entry point for precision cooling based on their current budget constraints Some consider the entry point for precision cooling based on their current budget constraints. So, if one is on a tight budget and needs a lower first cost, then a fixed-speed, single-stage precision cooling system may get the job done. However, this can be short-sighted as energy consumption and costs are higher when the data center is operating at less than the maximum designed cooling load. With experience, this seems to happen quite frequently based on what the mechanical engineer has been asked to design vs. the actual heat load of the space. If a fixed system is applied to the car accelerator example, one can see how only applying 100% throttle or 0% throttle would prevent from getting close to a precise speed. This is clearly not as efficient as the other examples unless one wants to go at the car’s maximum speed all the time. Ramping Up Data Center The needs and goals of a data center can change over time. While the initial objective may only require getting the space in running order, customers may reassess based on changing scenarios. If the data center needs to scale, one may be challenged if haven’t planned ahead with the design engineer for phased buildouts, or perhaps even varying IT load considerations that are seasonal or shift from day to day or even hour to hour. Likewise, one may need to consider the difference between design and actual usage – whether it be too little or too much. Perhaps the IT team says they need two megawatts, or one is going to be running at 16 kW per rack. The cooling system designed may underserve the needs or may be overkill for the current state of usage. In addition, pushing your system to do more than it is engineered for can potentially accelerate the aging of the infrastructure. Again, depending on your application, goals, and business strategy, one of these three systems is right. The best course of action is to evaluate where one is today and then future-proof the data center with technology that can grow.
The road transport group Jacky Perrenot has selected Carrier Transicold to equip its first 100% electric Renault truck. The vehicle was put into service last month and has been supplying several LIDL supermarkets in Paris and its inner suburbs. Carrier Transicold is part of Carrier Global Corporation, the foremost global provider of healthy, safe, and sustainable building, and cold chain solutions. About Jacky Perrenot For several years now, Jacky Perrenot has been a front-runner in the field of alternative energy and environmentally sustainable transport. This strong environmental commitment resulted in the collaboration with Carrier Transicold. “We turned to Carrier Transicold to help execute LIDL’s energy transition of its vehicle fleet to 20% electric,” explained Denis Bertin, General Manager of Operations and Development, Jacky Perrenot. “To meet this objective, we sought to develop a fully electric vehicle with Renault trucks that produce no CO2 emissions.” ATP FRC Technology and Certification Carrier Transicold equips 95% of its fleet of temperature-controlled vehicles, that must meet ATP FRC certification For the refrigeration unit, Jacky Perrenot turned to its long-standing partner Carrier Transicold, which equips 95% of its fleet of temperature-controlled vehicles, that must meet ATP FRC certification requirements. “Carrier Transicold was the only provider to offer FRC technology,” added Bertin. “This project is a successful collaborative effort to meet our environmental sustainability goals in the service of environmental performance. On the strength of this experience, we are already working on the preparation of a second all-electric vehicle.” Syberia refrigeration unit To meet the all-electric challenge, Carrier Transicold equipped the truck with its Syberia refrigeration unit. The dual-temperature unit is connected to the vehicle's battery using Carrier Transicold’s Eco-Drive™ hydroelectric module, which converts the direct current produced and stored by the truck while driving into the alternating current required to operate the refrigeration unit. This creates a fully self-sustaining virtuous system that produces no direct carbon dioxide (CO2) or particulate emissions. The unit is PIEK certified and emits less than 60 dB(A). Taking road transport forward “Jacky Perrenot has always been a pioneer in the adoption of alternative energies, such as the first natural-gas vehicles we equipped. With this new all-electric project, Jacky Perrenot is once again demonstrating its desire to take road transport forward with the energy transition. We welcome this commitment,” said Didier Urbaniak, General Sales Manager of Carrier Transicold France. Syberia units are one of the solutions offered through Carrier’s Healthy, Safe, Sustainable Cold Chain Program to preserve and protect the supply of food, medicine, and vaccines.
To kick off the hottest months of the year, Mitsubishi Electric Trane HVAC US (METUS) launches its new website: MitsubishiComfort.com. The website serves as a hub for both homeowners and professionals to review information from METUS, a leading supplier of Ductless and Ducted Mini-split and Variable Refrigerant Flow (VRF) heat-pump and air-conditioning systems. For Homeowners and professional A combination of the company’s homeowner and professional websites, MitsubishiComfort is a comprehensive resource with a refreshed user experience. The site highlights the ability of METUS systems to heat and cool any home, any building, anywhere. The new MitsubishiComfort is built to service the needs of homeowners and professionals. On the website, homeowners can learn about the benefits of Mitsubishi Electric heat-pump technology through articles, videos, and case studies. They can also use the website to find available rebates, financing information or request a consultation with a Mitsubishi Electric Diamond Contractor® or Ductless Pro qualified provider. Diamond Contractor and Ductless Pro qualified providers are independent professionals who have completed METUS training and have a high level of experience with METUS systems. Product and Application Catalog Professionals can use the website to locate a distributor, register systems, access tools, and sign up for training sessions The new site also boasts considerable content expansion in the product and application sections for ease of use, streamlined navigation, and to provide meaningful education for users. Professionals can use the website to locate a distributor, register systems, access tools, and sign up for training sessions and find the manufacturer-level support they need to make each project a success. The site includes custom portals for contractors, distributors, and METUS employees. The company’s history of innovation as a leader in VRF technology is displayed through articles on energy efficiency and sustainability — initiatives at the forefront of METUS product development. MitsubishiComfort also features a robust lead generation solution to connect homeowners and building owners with preferred local contractors while simultaneously sharing those leads with contractors. Authority Comment “From the beginning of this project, we knew we wanted to build a website to offer homeowners and professionals an easy way to access a deep amount of information about our systems and all the services we offer,” said Suzanne Rigdon, Director of Digital Marketing at Mitsubishi Electric Trane HVAC US. “We’re confident we’ve met our goals with this new site and can’t wait for our customers to get their hands on it.”
ABB has signed up to a pilot study with ST Telemedia Global Data Centres (STT GDC) to explore how Artificial Intelligence (AI), Machine Learning (ML), and advanced analytics can optimize energy use and reduce a facility’s carbon footprint. Singapore-headquartered STT GDC, which is one of the fastest-growing global data center operators, is leveraging the digital transformation expertise of technology leader ABB as it bids to become net carbon-neutral by 2030. Modeling and Validation ABB is studying historical data to establish how digital solutions would impact existing operations and energy use ABB is conducting the pilot in two phases, beginning with initial data exploration, modeling and validation, studying historical data to establish how digital solutions would impact existing operations and energy use. Once proven, it will be followed by AI control logic testing in a live data center environment. STT GDC aims to achieve at least 10 percent in energy savings from its cooling systems, which is the largest consumption of electrical power in a data center after IT equipment. Live Data Center “Our group’s AI roadmap will take a big leap forward with this pilot program. The vast amounts of data that can be captured and harnessed in a live data center environment makes for a strong base for AI applications, which can also be applied to other business processes including capacity planning, risk mitigation and predictive maintenance,” said Daniel Pointon, Group Chief Technology Officer, ST Telemedia Global Data Centres. “This, and other initiatives around alternative energy sources, water efficiency, construction technology and innovative cooling solutions, are being carried out by our research and development team based in Singapore.” Development Process The ABB team is currently developing AI-based optimization models for the entire data center cooling plant, including the upstream chiller and distribution systems. The AI project is also unlocking new opportunities for efficiency improvement at a granular level within the data center. STT GDC will be able to use AI-generated insights, leveraging cutting-edge ABB Ability™ Genix for industrial analytics and AI, to track and analyze data generated by monitoring systems in the data center, and better facilitate dynamic cooling optimization. Supporting Data Centers ABB has a strong track record of supporting data center operators with best-in-class technology “We look forward to supporting the STT GDC team in their efforts to drive digitalization and energy efficiencies,” said Madhav Kalia, Global Head of Data Center Automation at ABB. “At ABB, we have a strong track record of supporting data center operators with our best-in-class technology solutions. We are committed to exploring the synergies between our offerings with STT GDC as it embarks on an ambitious plan.” STT GDC is one of the fastest-growing data center providers, with a global platform of data centers in the world’s major business markets. It has more than 130 facilities across Singapore, UK, India, China, Thailand, South Korea, and Indonesia.
The last 18 months have seen an acceleration in digitalization across many aspects of work and home life. Home spaces have become workspaces, and commercial buildings have had to adapt to changed use and lower occupancy rates. Coupled with this, there is a growing need to dramatically reduce carbon emissions from buildings - according to the International Energy Agency (IEA), the buildings and construction sectors combined are responsible for over 30 percent of global energy consumption, and nearly 40 percent of carbon emissions. Installing separate systems This means that demand for a smarter approach to heating, ventilation and air conditioning (HVAC) management is crucial for building managers, who need to ensure that their properties can adapt to changed use, respond to the wellbeing of their occupants, and run efficiently to keep emissions as low as possible. Armed with this data, facility managers can take proactive steps to improve usage Of course, architects and developers have been installing separate systems to control HVAC for decades which have given building managers greater control and access to different areas of a site. However, with digitalization comes the addition of web-based platforms to allow these verticals to integrate seamlessly with each other, providing data on how efficiently and effectively a building operates through a single view application. Armed with this data, facility managers can take proactive steps to improve usage, which will see properties proactively react to the environmental and personal needs of their occupants. Centrally controlled lighting Many commercial buildings will already have a certain element of smart technology installed – from centrally controlled lighting and HVAC systems to remote management of security and energy management systems. However, it is often the case that these multiple applications are managed in silo. This means facilities managers don’t have a consolidated view of their data. In addition, not all managers will be using the data these devices produce to take steps to reduce the carbon footprint of their properties. Embracing smart technology – and a central control platform - gives building managers access to instant data on how their HVAC assets are performing in one place. This insight can be used to gain a thorough understanding of how the different systems in the building interact, and the external factors that may impact them. Effective building controls By using this data, operators can implement effective building controls to manage efficiencies By using this data, operators can implement effective building controls to manage efficiencies, identify maintenance issues, ensure the wellbeing of occupants, and inform future investment priorities. So, for example, if a building is now being used in a different way due to changed occupancy, the data will show the manager what needs to be done to ensure it is operating as efficiently as possible. We know that there will be increased demand for more flexible spaces as companies move towards remote or hybrid working models. It is likely that we will visit our offices less for day-to-day work and use them more as hubs to meet and collaborate. The ability to turn a traditional ‘bricks and mortar’ building into an agile asset that can learn and adapt to its surroundings will become increasingly important. Smart HVAC management Smart offices will become independently intelligent, learning how occupants use the space and services, adjusting lighting, HVAC and other systems to maximize health and comfort. Smart HVAC management will create a trend for ‘healthier’ buildings that will have a positive impact in terms of improved quality of life and wellbeing of occupants, ultimately resulting in higher productivity levels. In short, there has never been a better time to adopt smart HVAC technologies. Intelligent buildings that would have been unimaginable a few decades ago are now a reality. As buildings become smarter, they can learn how occupants use the space and services and proactively adjust lighting, HVAC and other systems to improve use, cut emissions and reduce energy consumption.
In HVAC and smart buildings, short-termism is an easy trap to fall into. We live in a world driven by returns, profit, KPIs and results; where short-term goals often trump long term ambitions as individuals at all levels are judged on their immediate targets. It is a facet of human nature that can cause us to be blind to the bigger picture. Yet for companies to operate not only more sustainably, but equally more effectively in the long run, sometimes the big picture needs to take precedence. Smart buildings and HVAC in the UK Let’s consider smart buildings and HVAC in the UK. While technologies such as the internet of things (IoT), automation, artificial intelligence and building information modelling (BIM) are all spoken about as cutting-edge industry trends and focal points in the here and now, their uptake remains relatively lacklustre. When I moved back to the UK two years ago, after 28 years in South Africa, I was surprised by what I found compared to what I had pictured and read about. I found a market where there’s lots of talk about innovating the built environment, but not a lot of action. Why? Because of impatience and misunderstanding. Companies are in too much of a rush – where they invest in these technologies, they want to see results now, not later. But this approach doesn’t work. The benefits of intelligent technologies Smart buildings and intelligent HVAC technologies can deliver a plethora of improvements from greener operations to lower costs, yet I believe these benefits need to be better defined. Here are just a few examples: Enhance productivity: According to a study from the World Green Building Council Study, improving ventilation and indoor air quality can enhance productivity by 8-11%. Equally, improving lighting can enhance productivity by 23%. Reduce costs: Albany Business Review states that buildings that enable smart technologies can reduce costs by an average of 15%. Reduce energy consumption: Smart buildings create a multitude of automation opportunities, such as motion-sensitive lighting or better HVAC management through a sensor-controlled system, driving down energy consumption – good for both cost reasons and the environment. Improve insights: IoT creates a multitude of data points that can be used to provide quantifiable and tangible insights (i.e., who is using a building, how they are using it, and when they are using it), which can inform actionable improvements. Enhance employee engagement: These insights can be visualised and communicated to make employees both more mindful of their own footprints, but equally such intent will likely improve retention and recruitment drives. Optimise maintenance: Sensors can monitor buildings’ performance to trigger maintenance alerts in real-time, making it faster, easier and cheaper to identify and fix potential issues. If a fault such as a clogged air filter resulting in hampered airflow goes undetected, HVAC systems may not only operate at suboptimal levels but, equally suffer from reduced lifespans. Improve hygiene: Smart building technologies can be used to improve everything from the movement of people to air quality, considerations that are top of mind within the COVID-19 context. Ensuring smart buildings don’t become another buzzword So, how can we better define these benefits, encourage widespread adoption, and ensure that smart buildings become an actionable approach to improving HVAC and construction rather than just another buzzword? When many organisations hear smart buildings or smart HVAC, they dismiss the idea with the assumption that such initiatives will require significant investment that is just not viable. First and foremost, policy needs to be reconsidered. While there are initiatives from the UK government that are working to encourage the optimisation and smart enhancement of buildings, there is a lack of key initiatives such as grants in the right areas to truly propel investment forward. In South Africa, this issue is tackled with private finance initiatives (PFI) that focus on designing buildings that incorporate smart building technologies to be greener and more efficient. PFIs are a means of financing public sector projects through the private sector, alleviating the government and taxpayers of an immediate financial burden by coming up with the capital for these projects. At a grassroots level, however, companies can also reconsider their approaches to smart building and HVAC technologies. When many organisations hear smart buildings or smart HVAC, they dismiss the idea with the assumption that such initiatives will require significant investment that is just not viable. Yet this doesn’t have to be the case. Yes, a smart building strategy and the associated investments can be expensive, but it can also start small, be cost-effective and focus on gradual, incremental improvement. Actionable advice Here are five core pieces of actionable industry advice that can help companies on their path towards smart building transition… Look at the big picture Start by considering your current operations. With so many new technologies being rolled out and marketed in the smart building, intelligent HVAC and eco-friendly arena, it can be easy to become side-tracked. While one innovation might appear to be extremely effective, it may not suit your building’s specific needs. To gain a better understanding of the latter, it is important to look holistically at what outputs to address, be it energy, water, air quality or other areas. Focus on the quick wins Once you have a better understanding of your building’s requirements, you will be able to work to identify where some of the quick wins may lie. Here, cost-effective improvements can be made. You might recognise that the lights or air conditioning are regularly left on in certain parts of the building when they don’t need to be, for example. By making some simple, easy changes, building efficiency can be drastically improved without breaking the bank. Get occupant buy-in At the point of implementation, it is important to ensure that all stakeholders are on the same page. From the IT department to the office cleaners to the MD, there should be a clear communication of goals. Remember those attempts to monitor and in turn reduce energy consumption by turning off lights and air conditioning units? They will only be successful should all employees embrace these actions. Monitor and adapt as you go While companies may quickly take some significant steps forward in realising some of the benefits available, it is important to note that a smart building transformation should never be a complete process. As technology continues to evolve at a rapid pace, there will always be improvements that can be made. Be it tweaks to existing technologies or investment in others, it is vital to keep monitoring your building’s performance and responding to the data to further enhance long-term returns. Improve education Finally, it is important to regularly educate yourself and others. Unbeknownst to many, smart building and HVAC technologies that had previously been expensive are now much cheaper, reducing barriers to entry. Knowledge is not what it needs to be – to ensure you’re able to benefit as an early adopter, continual learning is crucial.
As our urban centers grow, so does our demand for key resources, such as energy. Currently, cities are accountable for over 60% of resource use and an estimated 70% of global carbon emissions. In the Middle East particularly, countries have experienced unprecedented population growth, increased economic activity and consequently, increases in energy consumption. Integration of sustainable systems Fortunately, industry leaders and governments are placing sustainability at the heart of regional plans for urban development. The integration of sustainable systems is no longer a value-added benefit, but rather a necessary requirement. I believe a vital element for sustainable development in our cities is energy management. Energy is a costly commodity representing an average of 25% of all operating costs in office buildings. This cost, however, can be reduced by using energy management to optimize HVAC systems employed in a building. Effective energy management Energy management involves proactive tracking, systemic management and thoughtful optimization of energy consumption in a building, with the goal of improving energy efficiency. The concept of energy efficiency takes into account a variety of factors; we must consider system design, quality of installation and maintenance, efficiency rates and personal use. If we assume a system is designed with greatest efficiency in mind, its effectiveness is still deeply impacted by installation, maintenance and use. ‘Performance drift’ issues One challenge we face with the efficiency of HVAC systems is ‘performance drift’ One challenge we face with the efficiency of HVAC systems is ‘performance drift’. When first installed, and even in the first few months, HVAC systems operate immaculately. Over time, however, component efficiency and system conditions ‘drift’ away from the originally installed operating curve, meaning that efficiency and performance of the system can degrade incrementally. The deteriorating performance of HVAC systems has consequences, such as unnecessary use of energy, resulting in higher costs and emissions, in addition to reduced comfort for building occupants. Energy efficient HVAC pumps In order to truly have an impact on energy consumption, a holistic approach must be adopted. Only by carefully examining and optimizing each part of the HVAC system, can we then find ways to improve it. In my experience with Armstrong Fluid Technology, in the last decade, the technology for HVAC pumps has been enhanced to provide up to 70% energy efficiency savings through demand-based control and parallel pumping technology. These innovations enable the pumps to operate at optimum levels, consuming as little energy as possible. Innovative smart technology Systems that incorporate innovative smart technology enable more accurate system performance analysis and optimization. Pumps can function as highly accurate flow meters that provide valuable insight for building managers and operators. Data from the intelligent connected pumps can be collected through active performance management software, which enables the HVAC system to learn, predict and optimize to deliver even greater energy efficiency and cost savings through maintained optimized performance. Systems incorporating innovative smart technology enable more accurate system performance analysis Active performance management software Active performance management software enables real time and historical data reporting that directly demonstrates system efficiency and savings. Given the global shift towards sustainable building construction, legislation on energy reporting is inevitable, therefore employing systems with this in-built capability can prove to be extremely beneficial in the future. The software can also help maintain client comfort at all times by enabling predictive maintenance. Systems can provide alerts when they detect faults, allowing for early replacement before a full breakdown. This can be particularly helpful in mission critical applications such as hospitals. Importance of analyzed data in system optimization Without the ability to analyze data, buildings managers and operators cannot properly optimize mechanical systems Evidently, collecting data is essential for many reasons, including preventing, and even reversing, the loss of energy efficiency. Without the ability to analyze data, buildings managers and operators cannot properly optimize mechanical systems, which results in unnecessary energy use, insufficient maintenance practices and any related costs. There may be hesitation in the industry to incorporate more sophisticated systems as they require initial investment, however, the returns from using more efficient mechanical systems are impressive. Executing energy upgrades for HVAC systems Simple payback on energy upgrade projects is usually reached within 3 to 5 years. Furthermore, energy savings continue for the life of the system. Properly executed energy upgrades deliver up to 40% savings on energy consumption related to HVAC operation. Savings on that level for a large facility can be impactful for business operations. Energy efficiency is not ‘visible’ but has the potential to have a transformative effect on climate change, if embraced on a large scale. If we consume energy only as we need to, then we consume less of it. This, in turn, reduces our consumption of fossil fuels and consequently our greenhouse gas emissions. Aside from short-term benefits, such as costs savings and increased operation efficiency, energy management has the ability to help conserve energy for generations to come. Embracing energy saving solutions If we embrace innovative energy saving solutions in the building services industry, then we can begin to make a difference. With the recent launch of plans for sustainable development, such as the Dubai Master Plan 2040, green infrastructure, supporting solutions, will thrive. The global shift towards embracing sustainability has made individuals and organizations call into question their impact on our planet. Embracing sustainability is no longer a preference but a strategic business approach that helps to create long-term value on a social, economic and environmental level. The role of energy efficiency, and the systems that enable it, will inevitably play a key role in creating more sustainable buildings, communities and cities.
The COVID-19 pandemic has changed the way the world lives, escalating the need to prioritize health and safety where we live, work, learn and play. As organizations around the world respond to the pandemic, the International WELL Building Institute (IWBI) has leveraged its expertise to help. Impact of building surroundings IWBI is a public benefit corporation focused on deploying “people-first places” to advance a global culture of health. The community has adopted the WELL Building Standard, which is the anchor in an ecosystem of certifications and ratings focused on creating and benchmarking health and well-being in built environments. IWBI understands that companies have realized the importance of feeling safe inside and the importance of mental health — and how building surroundings impact that. WELL Building Standard (WELL) IWBI is focused on the ways that buildings, and organizations, can improve comfort and enhance health and well-being IWBI is focused on the ways that buildings, communities, and organizations, and everything in them, can improve comfort, drive better choices and generally enhance health and well-being. The work is global, covering 2.5 billion square feet of real estate in nearly 100 countries as of June 2021. The WELL Building Standard (WELL) is a vehicle for buildings and organizations to deliver more thoughtful and intentional places that enhance human health and well-being, according to IWBI. It’s the standard for buildings, interior places, and communities seeking to implement, validate and measure features that support and advance human health and well-being, leading to official certification. Measures to become WELL Certified A building becomes WELL Certified (WELL Building) following the adoption of features from the WELL Building Standard, achieving a threshold based on measures that are validated by a third party. These measures include building performance and their impact on people’s health and well-being. HVAC is a key element of WELL buildings. The primary purpose of HVAC systems is usually to improve the environmental conditions for the building users. Introducing outdoor air combats the buildup of carbon dioxide and volatile organic compounds, which at high levels can lead to sick building syndrome. Particle filters can remove much of the pollution from traffic or forest fires before it is introduced indoors. Problems with HVAC But HVAC systems can create their own problems. For example, cooling coils and drain pans can become a habitat for mold growth if not properly maintained. The WELL Building Standard addresses issues related to air quality and HVAC systems with a holistic approach, with adaptable strategies covering air, thermal comfort, and material. WELL Certification The WELL Building Standard includes strategies in 10 WELL Concept areas, from HVAC systems to architectural details The WELL Building Standard is a global framework for creating and certifying places that advance health and well-being. It includes strategies in 10 WELL Concept areas, covering topics ranging from HVAC systems to architectural details to human resource programs. WELL Certification is granted following a third-party review that these requirements have been met in a process that involves both submissions of documentation and on-site testing and inspection. Organizations can also enroll groups of projects in the WELL Portfolio, enabling them to document and celebrate their incremental progress in WELL feature achievement and employ the strategies at scale. Professional engagement Stakeholder engagement, including engagement by professionals in the HVAC space, has always been a key part of the development of WELL. For example, there was a 6-month public comment period to solicit feedback on the WELL v2 pilot before its graduation in 2020. Also, just before completing WELL v2, a Task Force on COVID-19 and Other Respiratory Diseases sought to identify any additions that could be added in light of the pandemic. There is also a network of more than 230 experts who participate in 14 IWBI advisories. Within this, there is an advisory for each of the 10 WELL Concepts, including 35 advisors in the Air and Thermal Comfort advisories. Challenges The most important challenge IWBI faces is the same one facing all others: Recovery from the COVID-19 pandemic and the ticking clock of climate change — and all that goes along with it. “As we continue to combat COVID-19, we recognize that feeling comfortable and safe inside is more important than ever,” says Nathan Stodola, Chief Engineer at the International WELL Building Institute (IWBI). “The pandemic has taught us the importance of air quality in preventing the spread of disease. This is a critical moment to keep the public informed on the latest scientific findings and best practices.” Adding a human element to buildings IWBI is working toward a future where buildings are designed with people — the human element — in mind" “We have also learned the value and importance of mental health, and how much employees want their employers to know that,” Stodola adds. “And IWBI is working toward a future where buildings are designed with people — the human element — in mind. There is an interconnectedness to all of this, and that’s how IWBI is working to serve the needs of the public.” WELL Health-Safety Rating In response to a rising need in the wake of COVID-19, IWBI introduced the WELL Health-Safety Rating for Facility Operations and Management in June 2020, a third-party validated tool designed to build confidence in the safety of a building. The WELL Health-Safety Rating provides an efficient and effective opportunity to guide, validate, recognize and scale the efforts of owners and operators on critical health and safety issues. Strategies undertaken Specific to the HVAC arena, many strategies that have come to light in the pandemic have been part of WELL since its inception, including sufficient ventilation rates, operable windows, awareness of mental health needs, and proper ergonomic design of workstations. But the Task Force on COVID-19 and Other Respiratory Infections also identified changes that have been implemented in the program, such as treating or eliminating recirculated ventilation air or allowing virtual training courses rather than requiring in-person classes. Most strategies in WELL are “evergreen:” They will continue to have benefits to building users even after the risk of COVID-19 diminishes, says IWBI. Programs and resources IWBI offers several education programs and resources, as well as professional credential courses, for people in the architecture, engineering, construction, and design industries--and beyond. IWBI offers a training program for schools to educate people on how to maintain a healthy and safe school environment The WELL Accredited Professional (AP) program is designed for those looking to gain skills to help inform WELL projects to further advance human health and well-being in buildings and communities IWBI also offers a training program for schools to educate people on how to maintain a healthy and safe school environment. Focus on health and well-being WELL buildings are not just about design and construction, but also about how to operate space and create policies that change people’s behavior for advanced health and well-being, says IWBI. For instance, the Nourishment Concept is about providing access to healthy food, and biophilia features can help improve people’s mental health. Caters to all markets and budgets Additionally, people tend to think that WELL buildings are expensive or only for the luxury market. WELL applies to all types of places and can be implemented with various budget sizes based on individual projects’ health and well-being needs. Air and Thermal Comfort concepts The HVAC requirements in WELL are dependent on the facilities team in addition to the design team. People need buildings to provide places to live and work, and buildings need people to care for their systems. There are several features in the Air and Thermal Comfort concepts related to the ongoing measurement of conditions within the space and maintenance of the ventilation system.
It’s shaping up to be a long, hot summer for HVAC contractors and their customers. Disruptions in the nationwide supply chain that began during the COVID-19 pandemic still have not been resolved. Shutdowns last summer played havoc with the supply of parts, and suppliers are still playing catch up, as raw materials remain scarce. Furthermore, prices are going up among some components and key raw materials. Waiting times for parts can run into weeks or even months. Supply shortages of HVAC equipment Summer weather increases the demand for HVAC equipment, especially in hotter climates. A spike in air conditioner demand is generally welcomed by most contractors, but supply shortages make it difficult to deliver on customer needs. Managing a backlog of impatient customers is a new challenge for many HVAC companies. The shortages impact materials, such as steel, aluminum, copper and plastics, whose costs are expected to rise in coming months. Among metals, the price hikes could be 20 to 30%, while prices of plastics could almost triple. Copper futures recently reached an all-time high, and steel price indexes are also at record levels. Shortages of electrical components Shortages have been reported of copper and electrical components, such as motors and compressors Shortages have been reported of copper and electrical components, such as motors and compressors, which are specific to the units that use them. There is also a shortage of microchips that are components in high-efficiency systems and furnaces, and resins used in the evaporator coil pans are scarce. Some HVAC supply firms have had difficulty obtaining evaporator coils used in air conditioners. Specialty items such as control boards have a wait time of up to two to three weeks, or longer. Shortages projected till end of 2021 The shortages are projected to continue until the end of 2021. Even as small shipments trickle in, they are often sold quickly. The situation is unfamiliar to the HVAC trade, which has traditionally not had issues with equipment availability. Shortages in the HVAC market are a reflection of broader supply and cost challenges of the construction market. Prices for goods used in residential construction have increased almost 10% over the past 12 months, according to the U.S. Bureau of Labor Statistics. Higher transportation costs impact supply chain Higher transportation costs are impacting both the supply chain and HVAC contractors. Personnel shortages continue to plague many HVAC companies, too, and a technician shortage is also contributing to longer wait times in some areas. A scarcity of labor has been a 20-year challenge for the HVAC industry, but it is reaching new levels as days go by. Order in advance and stockpiling equipment Alternatively, HVAC contractors may seek to switch brands to help ease availability issues One approach contractors are taking to the problem is to order equipment in advance and stockpile it for when they need it. One Denver contractor reportedly ordered almost a million dollars of equipment in advance. Alternatively, HVAC contractors may seek to switch brands to help ease availability issues. Identifying a manufacturer that has stock available can ease the inconvenience of customers having to wait for new equipment. need for regular HVAC maintenance Another approach is to educate homeowners about the importance of maintenance, such as changing filters, which can avoid a need for larger repairs involving equipment that is in short supply. Maintenance service is doable because it doesn’t require new equipment, replacements or add-ons that can be hard to come by. Unfortunately, among consumers, maintenance may have been delayed or ignored during the pandemic, which is aggravating the urgency of the current situation.
Artificial Intelligence (AI) is an emerging tool for a long list of applications, including the ability to analyze and ensure optimum performance of an HVAC system. Emerson’s Sensi Predict smart HVAC solution is an example of how AI can boost the capabilities of HVAC. It has been recognized with a Silver Edison Award in the Innovative Services – AI category. Sensi Predict smart HVAC solution Sensi Predict combines inputs from 10 sensors in an HVAC system and analyzes the performance of heating and cooling systems in real time. Intelligent monitoring alerts home owners and their contractors, when HVAC systems are not operating at full efficiency. The alerts, which can be accessed on a smartphone, can predict and prevent problems, ensure corrective maintenance, lower utility costs, and prolong the life of an HVAC system. Fault detection and diagnostics are a new frontier in HVAC technology, delivering a seamless and simple user experience. Sensi Predict HVAC system configuration Here is how the Sensi Predict system is configured: Sensors monitor the temperature of the air flowing from the HVAC system into the home, and also the return air temperature, coming from the home back into the system. Sensors also monitor temperatures in the liquid and vapor lines in the refrigerant loop, and the indoor and outdoor control lines, communicating back and forth from the thermostat to the outdoor unit. Other sensors monitor the current draw and indoor voltage of indoor units, and current and voltage to the outdoor units. Data from the sensors is used to analyze how well the HVAC is operating, including detailed monthly performance checks, with results issued to the home owner and the contractor. If a warning is detected, an alert will be sent in real time. 24/7 monitoring The 24/7 monitoring is summarized in a personalized home owner portal and monthly performance reports The 24/7 monitoring is summarized in a personalized home owner portal and monthly performance reports that include any alerts, loss of performance, runtime and estimated cost and filter status. Actionable alerts tell when a problem is detected, sent via an email with a straightforward explanation and recommended action. “Our heating and cooling systems are critical to the health and comfort of our families and the environment, yet we have little visibility into how they perform on a day-to-day basis,” said Jamie Froedge, Executive President of Emerson’s Commercial and Residential Solutions business. The Sensi Predict systems seek to provide additional visibility. Sharing real-time system insights The Edison Awards highlight top-tier new product innovation, service development and human-centered design. Named after inventor, Thomas Alva Edison, the awards recognize and honor global innovation. The award to Emerson’s Sensi Predict system recognizes it as a 21st-century solution to the maintenance of home heating, ventilation and air conditioning systems, sharing real-time system insights, in order to help home owners monitor performance and prevent unexpected problems. Maximize system lifetime and minimize energy costs “We are honored to be recognized for this innovative technology that provides both awareness and peace of mind, when it comes to an essential component of the home,” said Jamie Froedge. Sensi Predict also provides benefits related to installation, by validating a quality install and eliminating call backs. Over time, it maximizes system lifetime and minimizes energy costs. service and maintenance information In terms of maintenance, the system provides information to ensure that all contractor truck rolls generate revenue and decrease the average time on site. The 24/7 monitoring limits home visits to only when needed and increases transparency to the customer of suggested repairs and upgrades. Home owners can access the Sensi Predict Homeowner Portal on the official website for detailed information, based on real-time data about how their system is functioning and its performance history, energy usages and costs and predicted maintenance needs.
Teknotherm Marine España S.L. (Teknotherm) has landed its first new building contract. Teknotherm Marine España S.L. will deliver the complete HVAC maintenance and service, including installation work, on a suction dredger, to be built by Nodosa Shipyard. HVAC service for Omvac Catorce Nodosa Shipyard will build and design the 63.3 meters dredger, called Omvac Catorce, for Canlemar. Canlemar is dedicated to carrying out all kinds of maritime works, such as deepening and maintenance dredging in ports and bays, and construction of docks. Omvac Catorce is the third dredger that Canlemar has ordered with Nodosa Shipyard. Omvac Catorce will have a dredging capacity of 1200 m3 and a dredging depth of 30 m. The ship accommodates a crew of 10. The ship will comply with the IMO TIER III regulations of the International Maritime Organization, regarding the control and reduction of polluting and greenhouse emissions. With its adaptation to these regulations, this dredger will be able to navigate and operate anywhere in the world.
Pinder Cooling & Heating has completed a series of cooling and ventilation refurbishments as part of a new contract with popular fast-food chain, Mahmoods. The Bradford-based team of commercial refrigeration and air conditioning specialists has refurbished cold rooms within four of its restaurants between March and July. The Great Horton Road branch was the most recent to undergo the renovations, where Pinder also installed brand-new air conditioning units. Pinder’s founder, Andrew Pinder, said the refurbishments are a testament to the standards Mahmoods’ adheres to in terms of serving fresh, quality fast food. Maintaining cold rooms “Cold rooms in restaurants are an integral part of regulating food and keep it from becoming contaminated. Mahmoods has always been passionate about ensuring only the freshest food is served to its customers, and the investment into this new equipment demonstrates their commitment. Our team has really enjoyed working with the entire Mahmoods team and look forward to a long working relationship.” Mahmoods is a chain of fast-food restaurants founded in 2001 by Tariq Mahmood Mahmoods is a chain of fast-food restaurants founded in 2001 by Tariq Mahmood, with seven franchise sites across the UK. On 25th June 2021, the firm celebrated 20 years of serving quality and affordable Halal takeaway dishes. In recent weeks, it was listed as one of the top six highest rated takeaways to order in Bradford. Tariq Mahmood, Founder of Mahmoods said: “Cleanliness and the freshness of our food are at the top of our list, that’s why we ensure that we regularly maintain our cold rooms and have adequate ventilation throughout our restaurants.” Specialist HVAC services “Ahead of our 20th anniversary and the reopening of the hospitality industry, we made the decision to give our cold rooms and air conditioning units a major revamp, and appointed Pinder to carry out the work. Being a Bradford-based firm, we’ve heard a lot about the quality of service they provide, which is aligned to our values. That’s why we knew there was no other firm to support this part of the renovation.” Pinder Cooling & Heating has been providing specialist HVAC services to commercial firms across the UK since founding in 2016. It’s specialist areas include the installation of, and maintenance associated with commercial refrigeration, air conditioning, server room cooling, cellar cooling, cold rooms, and bar and restaurant equipment.
ABB has successfully completed the commissioning of the Induction xP Plus profiler system on PM3 at Bilt Graphic Paper Products Limited (BGPPL), Ballarpur, India, with remote support from China. Marking the first time that an ABB cross-machine direction control engineer has provided remote commissioning support for an upgrade of this kind, the modernization project was successfully and seamlessly delivered due to the world-class domain expertise of the team. Induction xP Plus Cross Direction ABB’s new Induction xP Plus is the best-in-class cross direction (CD) caliper profile control to achieve maximum induction heating in the shortest time possible, for reduced product variability and rapid corrections to sheet finishing profiles. The actuator heats the calendar roll with an alternating magnetic field, creating heating eddy currents that cause the roll to expand. First-of-its-kind remote commissioning for ABB, made possible by the team’s strong domain expertise This narrows the nip between rolls and compresses the paper for reduced caliper and increased smoothness, offering papermakers advanced caliper profiling and sheet finishing capability. It is an integral part of the ABB Ability™ Quality Management System (QMS), which is based on the flagship digital platform, ABB Ability™ System 800xA. Authority Comments “As part of our mill modernization, we decided to replace the existing ABB CD caliper control system (ThermoProfiler) with the latest Induction xP Plus profiler for PM3 at our Ballarpur plant, where we produce premium uncoated woodfree writing and printing paper, as well as high-quality office paper from 100 percent virgin wood fibers,” said Mr. Uday Kukde, General Manager and Unit Head, BGPPL, Ballarpur. “This upgrade to a newer, more reliable product was critical in order to improve our efficiency, safety and quality by reducing product variability, breakdown and inventory cost.” “This has been a significant, first-of-its-kind remote commissioning for ABB, made possible by the team’s strong domain expertise,” said Rajmohan Arumugam, Engineering Manager – QMS, ABB. “Despite it being a complex task, the team overcame all logistical and health and safety hurdles and ensured that the entire process ran smoothly and exceeded customer expectations.” BGPPL Bilt Graphic Paper Products Limited (BGPPL), a subsidiary of Bilt Paper B.V., manufactures coated and uncoated woodfree paper as well as copy paper from multiple facilities located in the state of Maharashtra. BGPPL, which exports its paper products to more than 55 countries, has a total capacity of 670,000 metric tons per annum across three mills.
Johnson Controls recently partnered with Air One Heating & Cooling, Star Air Conditioning & Heating, and YORK Factory Direct to install YORK® heating and cooling systems in two Building Homes for Heroes mortgage-free homes for wounded veterans in Daytona, Florida., and Orlando, Florida. Air One Heating & Cooling installed equipment donated by YORK Factory Direct in the home of Sergeant Carlos Cruz in Daytona, Florida, Cruz, who joined the military out of San Antonio, Texas in 1997, was injured during his 20-year deployment, causing him to suffer from severe post-traumatic stress disorder (PTSD), herniated discs in his back, left ACL reconstruction, migraines, and chronic pain. Suffer multiple injuries Star Air Conditioning & Heating installed equipment that was also donated by YORK Factory Direct in the home of U.S. Marine Corps Sergeant Jorge Zapata in Orlando, Florida, Zapata, who joined the military out of Parris Island, S.C., was injured during his deployment to Iraq, causing him to suffer multiple injuries, including PTSD and a traumatic brain injury. The injuries of both veterans require specific modifications in their homes in order to live safely and focus on their recoveries. "We’re proud to partner with Johnson Controls and Building Homes for Heroes to give back to a real hero within our local community who has made great sacrifices for our country,” said Larry Franklin Sr., Owner, Star Air Conditioning & Heating. “We’re honored to contribute our services to help Sergeant Jorge Zapata and his family live comfortably in their home.” Renovate quality homes The organization strives to build or renovate quality homes and donate them to injured veterans Building Homes for Heroes is a national organization that recognizes those who serve in the United States Armed Forces by supporting the needs of severely wounded or disabled soldiers and their families. The organization strives to build or renovate quality homes and donate them, mortgage-free, to injured veterans nationwide. “The customized amenities that Johnson Controls brings to these homes provide not only a foundation for these heroes, but a hopeful path to a bright future with the opportunity to reach dreams they may have never thought imaginable when injured,” said Andy Pujol, Founder and CEO of Building Homes for Heroes. Veteran-Friendly company “We are so grateful to partner with Johnson Controls, Air One Heating & Cooling, Star Air Conditioning & Cooling and YORK® Factory Direct to help these veterans and their families to live in greater comfort.” The YORK brand of Johnson Controls has been a proud sponsor of Building Homes for Heroes since 2014. The company has been recognized by US Veterans Magazine as a top veteran-friendly company. Johnson Controls is also committed to hiring veterans and military spouses. Veteran employees are honored to design, engineer, and assemble systems that help improve the lives of fellow veterans.
The mining industry uses a variety of corrosive chemicals in the extraction process of minerals such as gold, silver, platinum and other valuable raw materials. In the extraction of gold, for example, chemicals that are used in the process (ie., sodium hydroxide and sodium cyanide), require to be constantly heated at certain temperatures in large containers (up to 50,000 gallons). Replaceable heating elements These temperatures also require precise controls in order to maintain their consistency and effectiveness. The mining industry has used Wattco immersion heaters to help them solve this problem. With the help of highly resistant alloys used with our tubular elements, seamless tubing as well as a well calculated watt density, Wattco was able to provide replaceable heating elements that would heat up the chemical solutions to efficient levels using digital SCR controllers to help maintain the required temperatures. Skid mounted systems were also used in sister facilities that assisted in transport A redundancy system was also engineered to allow for emergency situations and help protect the valuable product and avoid any downtime in the process. Skid mounted systems were also used in sister facilities that assisted in transport and modularized the heating system in anticipation of additional heating and power requirements. Benefits of Wattco immersion heaters are as follows: Even dangerous and corrosive liquids can use electric heating to assist in the extraction of valuable commodities without the use of flammable heating source such as gas. Safety and virtually maintenance free electric heating can be used in large tanks without the need of access holes from the side of the tank. Precise controls can be used to maintain sensitive temperatures in dangerous areas.
After numerous water leaks, compressor failures, and damper control problems, it was time for South High Community School in Worcester, Massachusetts to replace their 30 year old HVAC rooftop units. Not only had the units outlasted their expected mechanical life, but the ability to deliver fresh outdoor air and maintain comfortable heating and cooling conditions became increasingly difficult and expensive. To specify a state-of-the-art replacement HVAC roof-top system, the energy and environmentally conscious school district enlisted the services of a local engineering firm. Energy recovery ventilation Director of Facilities, Jeff Lassey met with engineer Mike Lescar-beau of Lindgren & Sharples, P.C. to establish new system design requirements. Electric heat would need to be replaced with a lower cost energy source. To avoid altering the recently installed rubber roof, the new replacement units would need to utilize existing roof curbs and ductwork. Lassey wanted to include energy recovery ventilation (ERV) technology to minimize this energy load Because the replacement units would also be supplying outdoor air to meet the schools IAQ requirements, Lassey wanted to include energy recovery ventilation (ERV) technology to minimize this energy load. Lassey had utilized the technology on a neighboring high school three years earlier to successfully lower operating costs. To meet the new design challenge, Lescarbeau specified a total of (19) gas/electric rooftop units with integrated state-of-the-art Airxchange energy recovery wheels to replace the all-electric units. Building automation system Without energy recovery ventilation, HVAC systems waste energy contained in building exhaust air while consuming new energy to precondition code-driven fresh air requirements. By contrast, systems utilizing Airxchange wheels reuse (recycle) up to 80% of the energy in exhaust air to heat, cool, dehumidify or humidify a like amount of incoming fresh air. This recycling of energy can reduce HVAC design loads and annual energy use by as much as 50%. As a result, Lescarbeau was able to specify smaller, lower cost heating and cooling units to easily fit within the existing roof curb profile. Adaptor curbs were designed and fabricated by a local curb supplier to fit the new rooftop units to the existing curbs. Direct digital controls and modulating dampers were added for individual zone control by an existing building automation system. Outdoor air energy savings The wheels would have provided an additional $100,000 annually in outdoor air energy savings Airxchange energy recovery wheels were calculated to save South Community High School approximately $60,000 annually or $1.2 million in dollars over the average life of the new roof-top units. The initial added investment in wheel based rooftop units is expected to be recouped during the first year of operation based on savings from the Airxchange wheels alone. Had the school not converted their heating energy source from electric to gas, the wheels would have provided an additional $100,000 annually in outdoor air energy savings. “For roughly the same price as a larger more energy intensive rooftop unit, we can provide the same amount of work with a smaller, wheel based unit that performs with up to 40% greater efficiency. This translates to significant energy savings over the life of the equipment,” said Craig Campbell, Trumbull and Campbell Associates. Improving indoor comfort The replacement HVAC rooftop system earned South High Community School a Central Mass Green Award for energy efficiency. The award was created by the Worcester Business Journal (WBJ) to recognize organizations ‘going the extra mile’ to make green choices. According to the WBJ, “We all know being in business is about making money.” “But thanks to technological advancement, and a realization that our global resources are finite, making sustainable choices can both ease the conscience and help the bottom line.” South High’s energy recovery wheels are estimated to reduce CO2 emissions by 265 tons annually which translates to approximately 353 lbs per student. “With the wheels integrated into the DX rooftop units, the installation went very well. We’ve also received positive comments about the improved indoor comfort and air quality,” said Mike Lescarbeau, Lindgren and Sharples.
Round table discussion
Shifting demographics suggest a need for ‘new blood’ in the HVAC industry. It has never been a more important time to attract new applicants into the industry. Fortunately, there is a range of exciting opportunities for applicants of any age, including new disciplines and skills needed as HVAC systems transform in the digital age. We asked our Expert Panel Roundtable: What are the emerging career opportunities in the HVAC industry?
The practice of working from home soared during the coronavirus (COVID-19) pandemic and many observers see a likely continuation of the trend, as infection risks gradually subside. Both environments – home and office – depend on HVAC systems to keep occupants comfortable (and safe!). Therefore, the industry stands to be impacted whichever way the trend plays out. We asked our Expert Panel Roundtable: How will remote working affect residential and commercial HVAC?
The Internet of Things (IoT) is the network of physical objects embedded with sensors, software and other technologies to facilitate connecting and exchanging data with other devices and systems over the internet. Use of the IoT is expanding among both business and residential applications. However, there are hurdles to overcome, including security, privacy and networking challenges. As more HVAC devices embrace the IoT, we asked our Expert Panel Roundtable: What is the impact of the Internet of Things (IoT) on the HVAC market?
Automated After Hours HVAC Software And How You Can Quantify Its ValueDownload