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Sistema de refrigeración elastocalórica multimodo de alto rendimiento
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.
Science (New York, N.Y.)
|May 18, 2023
Resumen
Los investigadores desarrollaron un sistema de refrigeración elastocalórica de alto rendimiento utilizando tubos de nitinol resistentes a la fatiga. Esta tecnología innovadora ofrece una potencia de refrigeración y un rango de temperatura significativos, allanando el camino para la comercialización de soluciones de refrigeración avanzadas.
Área de la Ciencia:
- Ciencias de los materiales
- La termodinámica
- Energía sostenible
Sus antecedentes:
- El cambio climático global requiere el desarrollo de refrigerantes con potencial de calentamiento global cero.
- Las técnicas de enfriamiento calórico ofrecen una alta eficiencia, pero se enfrentan a desafíos para escalar a aplicaciones prácticas.
- La refrigeración elastocalórica es una tecnología incipiente con potencial para soluciones de refrigeración sostenibles.
Objetivo del estudio:
- Desarrollar y evaluar un sistema de refrigeración elastocalórica de alto rendimiento.
- Demostrar la viabilidad del uso de tubos de nitinol resistentes a la fatiga en una nueva arquitectura de intercambio de calor.
- Evaluar el potencial de comercialización del enfriamiento elastocalórico.
Principales métodos:
- Fabricación de un sistema de refrigeración que utiliza tubos de nitinol elastocalórico (NiTi) resistentes a la fatiga.
- Implementación de una arquitectura versátil de intercambio de calor multimodo.
- Pruebas experimentales para determinar la potencia de refrigeración y el intervalo de temperatura.
Principales resultados:
- Alcanzó una potencia de refrigeración máxima de 260 vatios.
- Demostró un rango de temperatura máximo de 22,5 grados Kelvin.
- Las métricas de rendimiento reportadas se encuentran entre las más altas para los sistemas de refrigeración calórica.
Conclusiones:
- El sistema de refrigeración elastocalórica desarrollado presenta un alto rendimiento, mostrando un poder de refrigeración y un rango de temperatura significativos.
- El uso de tubos de NiTi resistentes a la fatiga en un intercambiador de calor multimodo es clave para lograr estos resultados.
- La refrigeración elastocalórica presenta una vía prometedora para la comercialización de tecnologías de refrigeración avanzadas y sostenibles.
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