ANALYSIS OF A SOLAR SPACE COOLING SYSTEM USING LIQUID DESICCANTS

被引:13
作者
GANDHIDASAN, P
机构
[1] Mechanical Engineering Department, Texas Tech University, Lubbock, TX
来源
JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME | 1990年 / 112卷 / 04期
关键词
D O I
10.1115/1.2905767
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
For tropical countries, solar space cooling is an attractive proposition. Dehumidification of air in hot, humid climates is almost as important as cooling. Removal of moisture from the air is much easier to achieve than cooling the air. The proposed cooling system operates on the ventilation mode. The ambient air is dehumidified using liquid desiccants followed by adiabatic evaporative cooling. The desiccant soon becomes saturated with the water extracted from the air and can be regenerated by using solar energy. For this system, a simple expression is derived in this paper to predict the amount of heat removed from the space to be conditioned in terms of known initial parameters through a simplified vapor pressure correlation and effectiveness of the dehumidifier and the heat exchanger. The effect of ambient air conditions, solution concentration, the cooling water temperature and the effectiveness of the dehumidifier and the heat exchanger on the performance of the cooling system are also discussed in this paper.
引用
收藏
页码:246 / 250
页数:5
相关论文
共 9 条
[1]  
Gandhidasan P., Heat and Mass Transfer in Solar Regenerators, Handbook of Heat and Mass Transfer, 2, pp. 1475-1499, (1986)
[2]  
Gandhidasan P., Ullah M.R., Kettleborough C.F., Analysis of Heat and Mass Transfer Between a Desiccant—Air System in a Packed Tower, ASME, Journal of Solar Energy Engineering, 109, pp. 89-93, (1987)
[3]  
Gandhidasan P., Goring O., Myers K., Design and Testing of a Rotary-Type Liquid Desiccant Dehumidifier, Proceedings of the Sixth International Drying Symposium, 2, pp. PE1-PE5, (1988)
[4]  
Griffiths W.C., Use of Liquid Desiccant Dehumidification for Cooling Buildings, Proceedings of Desiccant Cooling and Dehumidification Opportunities for Buildings Workshop, SERI/CP-254-3000, pp. 81-90, (1989)
[5]  
Jurinak J.J., Mitchell J.W., Beckman W.A., Open-Cycle Desiccant Air Conditioning as an Alternative to Vapor Compression Cooling in Residential Applications, ASME, Journal of Solar Energy Engineering, 106, pp. 252-260, (1984)
[6]  
Peng C.P.S., Howell J.R., Analysis and Design of Efficient Absorbers for Low-Temperature Desiccant Air Conditioners, ASME, Journal of Solar Energy Engineering, 103, pp. 67-74, (1981)
[7]  
Penney T.R., Maclaine-Cross I., Promising Advances in Desiccant Cooling, Report Prepared for the U.S. Department of Energy, Contract No. DE-AC02-83CH10093, (1985)
[8]  
Queiroz A.G., Orlando A.F., Saboya F., Performance Analysis of an Air Dryer for a Liquid Dehumidifier Solar Air Conditioner System, ASME Winter Annual Meeting, Paper No. 84-Wa/Sol 6, (1984)
[9]  
Sick F., Bushulte T.K., Klein S.A., Northey P., Duffie J.A., Analysis of the Seasonal Performance of Hybrid Liquid Desiccant Cooling Systems, Solar Energy, 40, pp. 211-217, (1988)