Modeling of a Von Platen-Munters diffusion absorption refrigeration cycle

7th European Thermal-Sciences Conference

Agostini, Bruno^1 ; Agostini, Francesco^1 ; Habert, Mathieu^1

ABB Switzerland Ltd, Corporate Research, Segelhofstrasse 1K, Daettwil

5405, Switzerland^1

关键词: Diffusion absorption refrigeration cycles;    Harsh environment;    Low-cost solution;    Operating condition;    Organic fluid;    Power electronics converters;    Target application;    Thermodynamical model;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/745/3/032053/pdf
DOI  :  10.1088/1742-6596/745/3/032053

来源: IOP

【 摘 要 】

This article presents a thermodynamical model of a Von-Platen diffusion absorption refrigeration cycle for power electronics applications. It is first validated by comparison with data available in the literature for the classical water-ammonia-helium cycle for commercial absorption fridges. Then new operating conditions corresponding to specific ABB applications, namely high ambient temperature and new organic fluids combinations compatible with aluminium are simulated and discussed. The target application is to cool power electronics converters in harsh environments with high ambient temperature by providing refrigeration without compressor, for passive components losses of about 500 W, with a compact and low cost solution.