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Title: Study of parameters affecting the performance of solar desiccant cooling systems

The performance of a solar desiccant cooling system depends on the performance of its components, particularly the desiccant dehumidifier and solar collectors. The desiccant dehumidifier performance is affected by the properties of the desiccant, particularly the shape of the isotherm and the regeneration temperature. The performance of a solar collector, as one would expect, depends on its operating temperature, which is very close to the desiccant regeneration temperature. The purpose of this study was to identify the desiccant isotherm shape (characterized by separation factor) that would result in the optimum performance - based on thermal coefficient of performance and cooling capacity - of a desiccant cooling cycle operating in ventilation mode. Different regeneration temperatures ranging from 65{degree}C to 160{degree}C were investigated to identify the corresponding optimum isotherm shape at each. Thermal COP dictates the required area of the solar collectors, and the cooling capacity is an indication of the size and cost of the cooling equipment. Staged and no-staged regeneration methods were studied.
Authors:
;
Publication Date:
OSTI Identifier:
10143585
Report Number(s):
NREL/TP--471-5375; CONF-930435--6
ON: DE93000088
DOE Contract Number:
AC02-83CH10093
Resource Type:
Conference
Resource Relation:
Conference: SOLAR `93: American Society of Mechanical Engineers (ASME)/American Solar Energy Society (ASES) joint solar energy conference,Washington, DC (United States),25-28 Apr 1993; Other Information: PBD: Jan 1993
Research Org:
National Renewable Energy Lab., Golden, CO (United States)
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; SOLAR COOLING SYSTEMS; PERFORMANCE; DESICCANTS; SOLAR COLLECTORS; DEHUMIDIFIERS; THERMODYNAMICS; COEFFICIENT OF PERFORMANCE; REGENERATION SOLAR DESICCANT COOLING SYSTEMS; DEHUMIDIFIER; SOLAR COLLECTORS; DESICCANT ISOTHERM SHAPE 140901; 320106; SPACE HEATING AND COOLING; BUILDING EQUIPMENT