Performance of Hybrid Refrigeration System with an Auxiliary Air-cooled Condenser

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Performance of Hybrid Refrigeration System with an Auxiliary Air-cooled Condenser

Journal Title: 河南科技大学学报（自然科学版） - Year 2019, Vol 40, Issue 5

Abstract

In order to solve the problem of the relative low refrigeration efficiency in both of the solar-powered absorption refrigeration and air-cooled electricity-driven compression refrigeration applied in building airconditioning, by integrating the advantages of solar-powered absorption refrigeration system driven by solar energy refrigeration and conventional air-cooled compression refrigeration system with all-weather refrigeration, a hybrid refrigeration system with an auxiliary air-cooled condenser was proposed. By establishing a thermodynamics mathematical model, the effect of generator temperature, condenser temperature, evaporator temperature in absorption refrigeration cycle and condenser temperature in air-cooled compression refrigeration sub-system on coefficient of performance (COP) of the novel system was analyzed. The results reveal that, in the proposed system, the solar energy utilization rate is increased, the effective utilization time zone of solar energy is prolonged and the all-weather refrigeration is realized. Improving the evaporator temperature of the absorption refrigeration cyle is the effective method to prolong the operation time of the solar-powered absorption refrigeration cycle and decrease the work consumption of the novel system.

Authors and Affiliations

Chang LIU, Lin WANG, Zhanwei WANG, Aihua MA

Keywords

solar energy; air cooling; hybrid refrigeration; all-weather; coefficient of performance;

EP ID EP594623
DOI 10.15926/j.cnki.issn1672-6871.2019.05.007
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