Optimization of Solar Absorption Cooling System Considering Hourly Analysis

Document Type: Research Article


1 Department of Energy and Power Engineering, Huazhong University of science and technology, Wuhan, China

2 School of Mechanical Engineering, Isfahan University of Technology, Isfahan, Iran

3 Department of Mechanical Engineering, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran


Thermal modelling and optimal design of a solar absorption cooling system are presented, and hourly analysis is performed over the period of a year. Three design parameters are considered, then the Real Parameter Genetic Algorithm (RPGA) is applied to obtain the minimum total annual cost. The optimization results show that the solar cooling optimum configuration needs 1630 square meter collectors, a storage tank with a 15000L capacity as well as an absorption chiller with 300kW capacity. The hourly analysis shows that the space temperature fluctuates on average every 62 minutes during June and decreases to 51 minutes in September. In addition, the optimum number of collectors increases 26.67% given a 50% increment in electricity price while it decreases 20% given a 50% decrement in electricity price. Finally a sensitivity analysis on RPGA parameters is performed and results are reported.


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