Solar Energy (태양에너지)

The Korean Solar Energy Society (한국태양에너지학회)
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Research on the Optimal Operating Condition of a Total Heat Exchanger in Solar Air-Conditioning System

태양열 이용 냉난방 공조시스템 중 전열교환기의 최적운전조건에 관한 연구

  • Kim, K.H. (Pukyong National University, Graduate School) ;
  • Choi, K.H. (Dep. of Refrigeration & Air-Conditioning Engineering, Pukyong National University) ;
  • Kum, J.S. (Dep. of Refrigeration & Air-Conditioning Engineering, Pukyong National University) ;
  • Kim, B.C. (Pukyong National University, Graduate School) ;
  • Kim, D.G. (Pukyong National University, Graduate School)
  • Published : 1999.12.30
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Abstract

This study was performed to find out the influence of experimental factors on dehumidification performance and furthermore to suggest an optimal combination of factors of a total heat exchanger in a solar air conditioning system. The experimental apparatus was set up in a climate-controlled chamber where the temperature and humidity was maintained constant. In order to find out the contribution ratio of factors on dehumidification performance, the table of orthogonal arrays $L_8(2^7)$ was used. According to the results, the most influential factor on dehumidification performance was the concentration of LiCl(Lithium Chloride) solution. The next influential factors were the temperature of LiCl solution and the air flow rate. The packed layer height, packed material, and flow rate of LiCl solution had no influence on the dehumidification performance under these experimental conditions. Through the three level experiments of $L_{27}(3^{13})$, it was found that the optimal combination was $A_2B_0G_2$(concentration of solution 30 wt%, temperature of solution $15^{\circ}C$, air flow rate $253m^3/h$).

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