Comparison of the performance of open cycle air conditioners utilizing rotary desiccant dehumidifiers
This paper presents the results of an investigation of open cycle cooling systems using rotary desiccant dehumidifiers. Three systems, the ventilation, recirculation, and Dunkle cycles have been modeled. The performance of these systems coupled with an air-based solar system has been determined using TRNSYS simulations of system operation in four representative US climates. The system COP, fraction of the total cooling load met by the desiccant system, and fraction of the thermal energy provided by solar energy are compared. An assessment of the effect of climate and system parameters on the relative performance of the three system configurations is made. It is shown that in order to meet residential loads of 7 to 11 kW with a COP on the order of unity, systems with high effectiveness must be employed. These systems were also found to perform well when operated solely with a solar thermal input.
- Research Organization:
- Wisconsin Univ., Madison (USA). Solar Energy Lab.
- DOE Contract Number:
- AC03-79SF10548
- OSTI ID:
- 5347476
- Report Number(s):
- DOE/SF/10548-T2; ON: DE85018194
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
140901* -- Solar Thermal Utilization-- Space Heating & Cooling
AIR CONDITIONERS
COEFFICIENT OF PERFORMANCE
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
COOLING SYSTEMS
DEHUMIDIFIERS
DESICCANTS
ENERGY SYSTEMS
EQUIPMENT
OPEN-CYCLE COOLING SYSTEMS
PERFORMANCE
SIMULATION
SOLAR AIR CONDITIONERS
SOLAR COOLING SYSTEMS
SOLAR EQUIPMENT
TEMPERATURE MEASUREMENT