# 태양열 이용 냉난방 공조시스템 중 전열교환기 성능에 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, J.R. (Pukyong National University, Graduate School)
• Published : 1999.12.30

#### Abstract

This report Introduces a total heat exchanger in a solar air-conditioning system using Lithium Chloride(LiCl) solution. The hot and humid outside air is cooled and dehumidified by LiCl solution that is sprayed on the packed layer of the total heat exchanger. LiCl solution once diluted is concentrated again in a regenerator using solar energy. Three types as the packed materials were used in this experiment and the dehumidification performance was evaluated by the value of $k_xa(kg/h{\cdot}m^3{\cdot}{\Delta}x)$, overall mass transfer coefficient based on a humidity ratio potential difference, the influence of inlet LiCl solution flow rate, air flow rate, packed layer height on $k_xa$ was investigated. It was found that air flow rate, LiCl solution flow rate, packed layer height for all types had a great influnce on the value of $k_xa$.