Effect of operating conditions on the performance of two-bed closed-cycle solid-sorption heat pump systems

Journal Article · Tue Aug 01 04:00:00 EDT 1995 · Journal of Solar Energy Engineering

DOI:https://doi.org/10.1115/1.2847770· OSTI ID:118740

Zheng, W; Worek, W M ^[1]; Nowakowski, G ^[2]

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1. Univ. of Illinois, Chicago, IL (United States). Dept. of Mechanical Engineering
2. Gas Research Inst., Chicago, IL (United States)

The effect of two operating parameters, the regeneration temperature and the ambient temperature, on the performance of two-bed, closed-cycle solid-sorption heat pumps is investigated. The results show that increasing the regeneration temperature can improve both the COP and cooling capacity, and the effect on cooling capacity is more significant than the COP. Increasing the regeneration temperature from 180 C to 260 C, the cooling capacity increases by 50% and the COP improves 20%. When the ambient temperature drops, the system performance increases significantly. When the ambient temperature decreases by 10 C from the design point of 35 C, the COP and cooling capacity increases by 50% and 40%, respectively. Also, the bed cycling speed should be increased to achieve the optimum system performance when the regeneration temperature is higher or the ambient temperature becomes lower.

• Sponsoring Organization: USDOE
• OSTI ID: 118740
• Journal Information: Journal of Solar Energy Engineering, Journal Name: Journal of Solar Energy Engineering Journal Issue: 3 Vol. 117; ISSN JSEEDO; ISSN 0199-6231
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
ABSORPTION REFRIGERATION CYCLE
COMMERCIAL SECTOR
HEAT PUMPS
PERFORMANCE
RESIDENTIAL SECTOR