Analysis and optimization of a metal hydride cooling system

This paper presents both a dynamic model and experimental results of a single-stage metal hydride cooling system working with alloys LmNi(4.91)Sn(0.15) (hot reaction bed) and Ti0.99Zr0.01V0.43Fe0.09Cr0.05Mn1.5 (cold reaction bed). The system can work under regeneration temperatures ranging between 100 degrees C and 140 degrees C. Firstly, the model and experimental set-up are presented, and secondly, the key parameters of the cooling system are analyzed by carrying out a sensitivity analysis. A comparison between the actual and static P-C curves provides important information on the operating conditions of the reaction beds. Finally, an optimized system is proposed based on the optimization of the operation and on a more suitable selection of the alloys. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.