| Title |
Heat Transfer and Pressure Drop Characteristics in Zigzag Channel Angles of Printed Circuit Heat Exchangers |
| Authors |
권오경(Oh-Kyung Kwon) ; 최미진(Mi-Jin Choi) ; 최영종(Young-Jong Choi) |
| Keywords |
콤팩트 열교환기 ; 확산접합 ; 열전달률 ; 인쇄기판형 열교환기 ; 지그재그채널 Compact heat exchanger ; Diffusion bonding ; Heat transfer rate ; PCHE ; Zigzag channel |
| Abstract |
The objectives of this paper are to study the characteristics of heat transfer and pressure drop of the zigzag channel PCHE using diffusion bonding technology by numerical analysis. PCHE of five types are designed, which are zigzag channel angle 180°, 160°, 140°, 120° and 100°. The zigzag PCHE was numerically investigated for Reynolds number in a range of 150～800. The temperatures of the hot side were performed at 80℃ while that of the cold side was conducted at 20℃. The results show that the performance of heat transfer rate for zigzag channel 100° increases about 11.5% compared to that of zigzag channel 180°. On the other hand, the performance of pressure drop for zigzag channel 100° is remarkably higher than that of zigzag channel 180°, about 2.4 times. |