Energy and economic performance analysis of an open cycle solar desiccant dehumidification air-conditioning system for application in Hong Kong

Journal Article · Wed Dec 15 04:00:00 EST 2010 · Solar Energy

DOI:https://doi.org/10.1016/J.SOLENER.2010.09.006· OSTI ID:21396182

Li, Yutong; Lu, Lin; Yang, Hongxing ^[1]

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1. Renewable Energy Research Group (RERG), Department of Building Services Engineering, Hong Kong Polytechnic University, Hung Hom (China)

In this article, a transient simulation model and the EnergyPlus were used to study the energy performance and economical feasibility for integrating a solar liquid desiccant dehumidification system with a conventional vapor compression air-conditioning system for the weather condition of Hong Kong. The vapor compression system capacity in the solar assisted air-conditioning system can be reduced to 19 kW from original 28 kW of a conventional air-conditioning system as a case study due to the solar desiccant cooling. The economical performance of the solar desiccant dehumidification system is compared with that of the conventional air-conditioning system. The results show that the energy saving potentials due to incorporation of the solar desiccant dehumidification system in a traditional air-conditioning system is significant for the hot wet weather in Hong Kong due to higher COP resulted from higher supply chilled water temperature from chiller plants. The annual operation energy savings for the hybrid system is 6760 kWh and the payback period of the hybrid system is around 7 years. The study shows that the solar assisted air-conditioning is a viable technology for utilizations in subtropical areas. (author)

• OSTI ID: 21396182
• Journal Information: Solar Energy, Journal Name: Solar Energy Journal Issue: 12 Vol. 84; ISSN 0038-092X; ISSN SRENA4
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COEFFICIENT OF PERFORMANCE
COMPARATIVE EVALUATIONS
COMPRESSION
COOLING
DEHUMIDIFIERS
DESICCANTS
ECONOMICS
ENERGY CONSERVATION
FEASIBILITY STUDIES
HONG KONG
HYBRID SYSTEMS
LIQUIDS
OPERATION
PAYBACK PERIOD
PERFORMANCE
SIMULATION
SOLAR AIR CONDITIONERS
Solar desiccant dehumidification
TRANSIENTS
VAPORS
WATER