Modeling combined heat transfer in an all solid state optical cryocooler

Cryogenic Engineering Conference 2017

材料科学;物理学

Kuzhiveli, Biju T.^1

Centre for Advanced Studies in Cryogenics (CASC), National Institute of Technology Calicut, Calicut

673601, India^1

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

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/278/1/012136/pdf
DOI  :  10.1088/1757-899X/278/1/012136

学科分类：材料科学（综合）

来源: IOP

【 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.