Publication: Design of a hybrid desiccant air conditioner
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Date
2002-03-01
Authors
Mat Sahar, Saiful Izwan
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Abstract
Hybrid desiccant cooling systems are emerging as an energy efficient, environmentally
benign and human friendly alternative to the conventional vapour compression
refrigeration systems for comfort cooling applications. In this study, a hybrid desiccant
cooling system was designed to meet the humid tropical condition of Malaysia.
Dehumidification process, which conducted in a wetted wall absorber, is then followed
by a smaller capacity of vapour compression refrigeration system for sensible cooling.
In this system, a liquid desiccant was used. The desiccant will be regenerated directly
in a solar regenerator/collector. From a psychrometric analysis, this hybrid desiccant
cooling system will reduce up to 37.89 % of cooling capacity compared to the
conventional system after considering about 10 % of parasitic power requirement from
fan and pump usage.