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Thermal Energy Conversion Systems Lab
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The lab aims to save energy and reduce environmental impact through the effective use of heat.

AboutAbout the lab
Building a sustainable future through the use of heat
The Thermal Energy Conversion Systems Lab studies technologies that use waste heat and heat from renewable energy, and ways to reduce environmental impact through heat pumps and refrigeration systems.
The lab also works on air-conditioning systems driven by renewable energy, such as solar energy, and by unused heat.
The lab also conducts simulations and experiments on heat pump and refrigeration cycles, and develops applied technologies using high-performance adsorbents such as activated carbon.
Key terms
- Heat pump
- The principle behind familiar appliances such as air conditioners and refrigerators. It is also used in supermarket refrigerated and frozen display cases and in building air conditioning.
- Adsorption heat pump
- A technology that uses hot water at about the temperature at which an electric water pot keeps its water warm, rather than electricity, to produce cooling for air conditioning and refrigeration.
- Adsorbent
- A material commonly used as a desiccant or deodorizer. The lab uses its ability to take up vapor for energy conversion and storage.
NewsLab news
Won the Outstanding Presentation Award
Won the President's Encouragement Award
Won the Outstanding Presentation Award
ResearchResearch themes
The lab carries out research and development on energy-saving technologies that use thermal energy and on technologies that reduce environmental impact. It works on simulations and experiments on heat pump and refrigeration cycles, and on applied technologies using high-performance adsorbents such as activated carbon.
*Illustrative imageHeat pumps with refrigerants of low global warming potential
Simply replacing the refrigerant with a fluorocarbon gas that has a lower global warming potential usually lowers the performance of an air conditioner. The lab investigates through experiments how refrigerant properties affect heat pump performance, and predicts the performance with new refrigerants through simulation.
*Illustrative imageAdsorption heat pumps and thermal energy storage
An adsorption heat pump is a technology that produces cooling from hot water at about the temperature at which an electric water pot keeps its water warm. Together with professors in materials science, the lab develops adsorbents, and carries out performance demonstrations and analyses of adsorption heat pumps and thermal energy storage systems.
MembersFaculty
The members of the Thermal Energy Conversion Systems Lab are faculty members, doctoral, master's, and undergraduate students, research students, and a secretary.
- ProfessorTakahiko Miyazaki
- ProfessorKyaw Thu
- Assistant ProfessorChairunnisa
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Outunit of heat pump” No machine-readable author provided. Ppntori assumed (based on copyright claims). / Public domain (cropped)
- Heat pumps with refrigerants of low global warming potential: “Mitsubishi Heat Pump interior air handler.agr” ArnoldReinhold / CC BY-SA 4.0 (cropped)
- Adsorption heat pumps and thermal energy storage: “White Silica Gel” Desiccants / CC BY-SA 3.0 (cropped)
- Related lab (電力変換システム工学研究室): “Electric power transformation substation in Iraq” 作者不詳 / Public domain (cropped)
- Related lab (化学反応工学研究室): “Koks Brennstoff” Stahlkocher / CC BY-SA 3.0 (cropped)
- Related lab (機能無機材料工学研究室): “Ceramic monoliths” S. Govender, H. Friedrich / CC BY-SA 4.0 (cropped)
- Related lab (機能有機化学研究室): “Round-bottom flasks” H Padleckas created this image file, completing it on September 15, 2006 especially for use in the article "Round-bottom flask" in Wikimedia. / CC BY-SA 2.5 (cropped)
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