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Dynamic Simulation of Transient Operations of a Solar Power-Assisted Absorption Chiller  

Shin, Young-Gy (Department of Mechanical Engineering, Sejong University)
Seo, Jung-A (Samjung Tech Co.)
Woo, Sung-Min (Department of Mechanical Engineering, Sejong University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.22, no.2, 2010 , pp. 78-85 More about this Journal
Abstract
A dynamic model has been developed to investigate the operability of a single and double-effect solar energy assisted parallel type absorption chiller. In the study, main components and fluid transport mechanism were modeled. And solar radiation and the solar collector were also modeled along with its control design. The model was run for the single mode with solar energy supply only and the solar/gas driving double effect mode. From the simulation results, it was found that the present configuration of the chiller is not capable of regulating solution flow rates according to variable solar energy input. And the issues of the excessive circulation flow rate and the mismatch between available solar power and cooling load discourages the use of the single mode, but the dual use of gas and solar power is recommendable in view of controllability and enhanced COP.
Keywords
Absorption; Dynamic model; Solar power; Heat exchanged; Absorber; Solar collector;
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