Analysis of a solar space cooling system using liquid desiccants

Journal Article · Sat Dec 01 04:00:00 EST 1990 · Journal of Energy Resources Technology; (United States)

DOI:https://doi.org/10.1115/1.2905767· OSTI ID:6122829

Gandhidasan, P ^[1]

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1. Mechanical Engineering Dept., Texas Tech Univ., Lubbock, TX (US)

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.

• OSTI ID: 6122829
• Journal Information: Journal of Energy Resources Technology; (United States), Journal Name: Journal of Energy Resources Technology; (United States) Vol. 112:4; ISSN 0195-0738; ISSN JERTD
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140901* -- Solar Thermal Utilization-- Space Heating & Cooling
AIR CONDITIONERS
AIR CONDITIONING
COOLANTS
COOLING
DEHUMIDIFICATION
DESICCANTS
EFFICIENCY
EQUIPMENT
EVAPORATIVE COOLING
OPERATION
SOLAR AIR CONDITIONERS
SOLAR AIR CONDITIONING
SOLAR COOLING SYSTEMS
SOLAR EQUIPMENT
THERMAL EFFICIENCY
TROPICAL REGIONS