대한설비공학회:학술대회논문집 (Proceedings of the SAREK Conference)
- 대한설비공학회 2009년도 하계학술발표대회 논문집
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- Pages.1096-1101
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- 2009
R410A를 이용한 브레이징 타입 판형열교환기에서 물 측 유동방향에 따른 응축/증발 성능 평가
An Experimental Study on Evaporation/Condensation Heat Transfer with Flow Direction in Brazed Plate Heat Exchanger using Refrigerant 410A
- Lee, Sung-Woo (School of Mechanical Engineering, Pusan National University) ;
- Jeong, Young-Man (School of Mechanical Engineering, Pusan National University) ;
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Lee, Jae-Keun
(School of Mechanical Engineering, Pusan National University) ;
- Lee, Dong-Hyuk (Digital Appliance Laboratory, LG Electronics)
- 발행 : 2009.06.25
초록
The plate heat exchanger(PHE) in heat pump has two flow streams of the refrigerant and water. The flow direction of the refrigerant, unlike that of water, can be changed by a 4-way valve depending on operating condition. Therefore the flow arrangement is a parallel flow for heating and a counter flow for cooling, respectively. In this study, the effects of the flow direction of the water on the heat transfer rate are investigated experimentally. The experiments are carried out for brazed plate heat exchangers under a parallel and counter flow conditions in evaporation and condensation. The experimental parameters in this study include the mass flux of the refrigerant 410A from 3 to
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