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Study on the Performance Optimization of Commercial Metal Hydride Refrigerator Powered by Exhaust Gas from Micro Gas Turbine  

Kim Hyoungsik (Center for Gas Utilization Tech, R&D Division, KOGAS)
Sohn Wha-seung (Center for Gas Utilization Tech, R&D Division, KOGAS)
Choi Kyoung-shik (Center for Gas Utilization Tech, R&D Division, KOGAS)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.17, no.9, 2005 , pp. 824-829 More about this Journal
Abstract
MHR(Metal Hydride Refrigerator) powered by MGT exhaust gas is investigated to find out the optimum conditions corresponding to MGT operating powers. There are many factors to affect cooling capacity of MHR. In this study, the effect of switching time, flow rate of brine on cooling temperature and capacity is investigated. The present results show (1) hydrogen reaction is saturated with 25 min switching time at 25 kW MGT power, (2) cooling power shows maximum phenomenon with increasing switching time, (3) optimum switching times are 20 minutes for 15kW MGT power and 15 minutes for 20, 25kW MGT power, (4) according to increasing brine flow rate, cooling capacity shows decrease at 15 kW MGT power and changes little at above 20 kW MGT power.
Keywords
Metal hydride refrigerator; Micro gas turbine; Optimum operating condition; Cooling capacity;
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  • Reference
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