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Tag: research
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AIRAH Awards 2024: Shaghaghi wins research student award
Poorya Shaghaghi, Stud.AIRAH, has taken home the Student of the Year – Higher Education or Research award at the 2024 AIRAH Awards.
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New material adapts heat emission for energy savings
Chicago University researchers have designed a building material that adjusts its emission of infrared colour and heat according to outdoor temperatures, which could provide low-energy temperature regulation for buildings. In a recent paper published in Nature Sustainability, researchers explained that their non-flammable electrochromic building material contains a layer that can reversibly shift between solid […]
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New cooling technology harnesses ions
Researchers at the Department of Energy’s Lawrence Berkeley National Laboratory claim to have developed a new cooling method, which they have named “ionocaloric cooling”. In a recent paper published in Science, researchers explained that ions in solution can be used to control the melting and crystallisation of a material, creating an ionocaloric cycle. Existing and […]
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Manufacturing breakthrough for thermoelectrics
University of Notre Dame researchers have developed a new manufacturing process that allows thermoelectric devices to be produced faster and at lower cost. The innovative process uses intense pulsed light to sinter thermoelectric material in less than a second, while conventional sintering in thermal ovens can take hours. This method of turning nanoparticle inks into flexible […]
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New path for PV-powered cooling
An Australian-Indian group of researchers is exploring the combined use of thermoelectric modules (TEMs) and rooftop photovoltaics (PV) in HVAC for buildings. Using air as the thermal fluid for the rooftop PV, the scientists designed a system that uses a primary TEM wall to deliver room air conditioning. Traditionally, TEMs have not been used in […]
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Women in cooling survey reveals global challenges
The International Institute of Refrigeration (IIR) has published a new report surveying 810 women worldwide working in the HVAC&R sector, to better understand their careers, challenges, motivation, and opportunities. According to the report, more than 15 million people are employed worldwide in the HVAC&R industry, with the under-representation of women evidenced by the fact that […]
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HVAC exhaust can boost rooftop crops
Researchers have found that planting vegetables crops near vents exhausting carbon dioxide-rich air can produce up to four times more growth. The farming system, known as BIG GRO, takes a sustainable waste resource that exists in excess in cities – human respiration – and applies it to farming. Conducted on the roof of the […]
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Unequal economic impact of extreme heat
A new research article linking economic growth and extreme heat has highlighted that the worst impacted communities will likely be the least culpable when it comes to man-made climate impacts. According to researchers Christopher W. Callahan and Justin S. Mankin, “global inequality is both a cause and consequence of the unequal burden of climate change”. […]
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Combination passive cooling for crop storage
Massachusetts Institute of Technology (MIT) researchers have designed an innovative passive cooling system that requires no power, and only a small amount of water. Combining radiative and evaporative cooling with thermal insulation in a slim package similar to a solar panel, designers say the system can provide up to 9.3°C of cooling from ambient temperature. […]
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Research reveals huge health benefits of humble retrofits
A comprehensive study conducted through the Victorian Healthy Homes Program has measured the impact of an energy efficiency and thermal comfort home upgrade on temperature, energy use, health and quality of life. It found that for every dollar saved in energy, more than $10 is saved in health. Over three years (2018–20), Sustainability Victoria oversaw […]
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Extreme temperatures lead to online flaming
A new study has shown that temperatures outside a window of 12–21°C are linked to a marked rise in aggressive online behaviour. Conducted by Potsdam Institute for Climate Impact Research (PIK), the study looked at more than four billion Twitter posts from US users between 2014–2020. Researchers used an AI algorithm to detect more than […]
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ARBS Foundation publishes new research on chilled beams
The ARBS Education and Research Foundation and Team Catalyst have published a detailed study of active chilled beam systems that they say offers “groundbreaking findings”. Funding was provided to Team Catalyst to research active chilled beam systems and to compare the performance of two chilled water plant configurations: Standard using chilled water plant of multiple […]
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Unlocking the Mpemba Effect
A new research study at Simon Fraser University in Canada may lead the way to exploiting the mysterious Mpemba Effect – the process by which hot water freezes faster than cold water. The Mpemba Effect is named after Tanzanian school student Erasto Bartholomeo Mpemba who, legend has it, was making ice-cream in a food tech […]
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A breakthrough for cool roofs?
Researchers at the University at Buffalo have designed a new system that could help keep roofs cool by radiating heat into outer space, without consuming electricity. The system consists of a polymer/aluminium film installed inside a box at the bottom of a specially designed solar shelter. The film cools its surroundings by absorbing heat from […]
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How flammable is ‘mildly flammable’?
A multi-million-dollar research project led by AHRI, with support from ASHRAE, the US Department of Energy and the California Air Resources Board, has comprehensively tested refrigerants to answer questions around their flammability. In Australia, the topic continues to provoke debate, and understandably so. Because of the HFC phase-down, previously common non-flammable A1 refrigerants are giving way […]
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Exploding the 22°C comfort myth
A new Australian study is taking on the long-held debate: is your office’s 22°C thermostat really set at the correct temperature? Around the world, 22°C has become standard practice. For workers, it’s believed to be the optimal temperature for productivity – a claim backed by ASHRAE and REHVA. Not so, says a team from South […]