Desiccant degradation in desiccant cooling systems: A system study

Journal Article · Mon Nov 01 04:00:00 EST 1993 · Journal of Solar Energy Engineering

DOI:https://doi.org/10.1115/1.2930056· OSTI ID:143939

Pesaran, A A ^[1]

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1. National Renewable Energy Lab., Golden, CO (United States)

The authors predict the impact of desiccant degradation on the performance of an open-cycle desiccant cooling system in ventilation mode using the degradation data on silica gel obtained from a previous study. The degradation data were based on thermal cycling desiccant samples and exposing them to ambient or contaminated air. Depending on the degree of desiccant degradation, the decrease in the thermal coefficient of performance (COP) and the cooling capacity of the system for low-temperature regeneration was 10 percent to 35 percent. The 35 percent loss occurred based on the worst-case desiccant degradation scenario. Under more realistic conditions the loss in system performance is expected to be lower.

• Sponsoring Organization: USDOE
• OSTI ID: 143939
• Journal Information: Journal of Solar Energy Engineering, Journal Name: Journal of Solar Energy Engineering Journal Issue: 4 Vol. 115; ISSN JSEEDO; ISSN 0199-6231
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
AIR CONDITIONERS
COEFFICIENT OF PERFORMANCE
DEHUMIDIFICATION
DESICCANTS
SOLAR COOLING SYSTEMS
SURFACE CONTAMINATION
WASTE HEAT UTILIZATION