Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Experimental study of Heat Transfer and Pressure Drop Characteristics for the Welded Plate Heat Exchanger

용접형 판형 열교환기의 열전달 및 압력강하 특성에 관한 실험적 연구

  • Jeong, Jong-Yun (Department of Mechanical Engineering, Kyunghee University) ;
  • Kim, Sung-Soo (Woosung institute of industrial Technology) ;
  • Kang, Yong-Tae (Department of Mechanical and Industrial Engineering, Kyunghee University)
  • 정종윤 (경희대학교 기계공학과 대학원) ;
  • 김성수 (우성산업기술연구소) ;
  • 강용태 (경희대학교 기계.산업시스템공학부)
  • Published : 2008.06.25
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Abstract

Heat transfer and pressure drop characteristics of welded plate heat exchanger are studied to apply it for the solution heat exchanger of 210RT absorption system. This study quantifies the effect of mass flow rate and strong solution concentration on the heat transfer coefficient and pressure drop in the plate heat exchanger. The concentration of weak solution is fixed at 55% and the strong solution varies 55%, 57%, and 59% in mass. The results show that the overall heat transfer coefficient and pressure drop increase linearly with increasing Reynolds number. It is also found that the heat transfer coefficient of hot side increases with increasing the concentration of strong solution while the strong solution concentration has no effect on heat transfer coefficient of cold side.

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