| Title |
Heat Transfer Performance Variation of Condenser due to Non-uniform Air Flow |
| Authors |
이원종(Won-Jong Lee) ; 정지환(Ji Hwan Jeong) |
| DOI |
http://dx.doi.org/10.6110/KJACR.2014.26.4.193 |
| Keywords |
응축기 ; 공기유동 불균일분포 ; 열저항열전달 성능 Condenser ; Air flow non-uniform distribution ; Thermal resistance ; Heat transfer performance |
| Abstract |
Heat transfer performance variation of a condenser caused by non-uniform distribution of air flow was investigated using a numerical simulation method. A heat exchanger used for a outdoor unit of a commercial heat pump system and represented by a numerical model was selected. Non-uniform profile of air-velocity was constructed by measuring the air velocity at various locations of the outdoor unit. Simulation was conducted for various refrigerant circuits and air flow conditions. Simulation results show that the heat transfer capacity was reduced depending on the air-flow rate and the refrigerant circuit configuration. It is also shown that the capacity reduction rate is increased as the average air velocity decreases. |