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Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation
Published on: May 2, 2016
High-performance multimode elastocaloric cooling system
Suxin Qian1,2, David Catalini2, Jan Muehlbauer2
1Department of Refrigeration and Cryogenic Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China.
Researchers developed a high-performance elastocaloric cooling system using fatigue-resistant nitinol tubes. This innovative technology offers significant cooling power and temperature span, paving the way for commercializing advanced cooling solutions.
Area of Science:
- Materials Science
- Thermodynamics
- Sustainable Energy
Background:
- Global climate change necessitates the development of refrigerants with zero global warming potential.
- Caloric cooling techniques offer high efficiency but face challenges in scaling to practical applications.
- Elastocaloric cooling is a nascent technology with potential for sustainable cooling solutions.
Purpose of the Study:
- To develop and evaluate a high-performance elastocaloric cooling system.
- To demonstrate the feasibility of using fatigue-resistant nitinol tubes in a novel heat exchange architecture.
- To assess the potential of elastocaloric cooling for commercialization.
Main Methods:
- Fabrication of a cooling system utilizing fatigue-resistant elastocaloric nitinol (NiTi) tubes.
- Implementation of a versatile multimode heat exchange architecture.
- Experimental testing to determine cooling power and temperature span.
Main Results:
- Achieved a maximum cooling power of 260 watts.
- Demonstrated a maximum temperature span of 22.5 Kelvin.
- Reported performance metrics among the highest for caloric cooling systems.
Conclusions:
- The developed elastocaloric cooling system exhibits high performance, showcasing significant cooling power and temperature span.
- The use of fatigue-resistant NiTi tubes in a multimode heat exchanger is key to achieving these results.
- Elastocaloric cooling presents a promising avenue for the commercialization of advanced, sustainable cooling technologies.
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