Modeling combined heat transfer in an all solid state optical cryocooler

[摘要] Attaining cooling effect by using laser induced anti-Stokes fluorescence in solids appears to have several advantages over conventional mechanical systems and has been the topic of recent analysis and experimental work. Using anti-Stokes fluorescence phenomenon to remove heat from a glass by pumping it with laser light, stands as a pronouncing physical basis for solid state cooling. Cryocooling by fluorescence is a feasible solution for obtaining compactness and reliability. It has a distinct niche in the family of small capacity cryocoolers and is undergoing a revolutionary advance. In pursuit of developing laser induced anti-Stokes fluorescent cryocooler, it is required to develop numerical tools that support the thermal design which could provide a thorough analysis of combined heat transfer mechanism within the cryocooler. The paper presents the details of numerical model developed for the cryocooler and the subsequent development of a computer program. The program has been used for the understanding of various heat transfer mechanisms and is being used for thermal design of components of an anti-Stokes fluorescent cryocooler.

[发布机构] Centre for Advanced Studies in Cryogenics (CASC), National Institute of Technology Calicut, Calicut; 673601, India^1

[效力级别] 物理学 [学科分类] 材料科学（综合）

[关键词] Anti-Stokes fluorescence;Combined heat transfer;Feasible solution;Heat transfer mechanism;Mechanical systems;Numerical tools;Solid-state cooling;Thermal designs