Preliminary study of the potential for performance improvements in solar desiccant cooling
Technical Report
·
OSTI ID:5988825
The basic operation of the desiccant cooling system is reviewed, and a preliminary evaluation of the potential for improving desiccant cooling system performance to COPs of 1.0 to 1.2 is performed. A second-law thermodynamic system analysis was carried out, demonstrating that present desiccant systems only achieve 10% to 15% of theoretical maximum performance and that a large potential for improvement exists. Computer simulations have been used to study the effects of improving desiccant properties and increasing the effectiveness of some components of the system. Results have shown that modification of desiccant properties can only produce a limited (10%) increase in COP. Larger increases can be achieved by increasing the effectiveness of the sensible heat exchanger. However, this study indicates that the key to obtaining higher COPs is in the design of the dehumidifier. One design that shows promise is the parallel passage dehumidifier.
- Research Organization:
- Solar Energy Research Inst., Golden, CO (USA)
- DOE Contract Number:
- AC02-77CH00178
- OSTI ID:
- 5988825
- Report Number(s):
- SERI/PR-252-1416; ON: DE82001544
- Country of Publication:
- United States
- Language:
- English
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