| Title |
A Study on the Pressure Loss Characteristics of Micro-Channel PCHE |
| Authors |
김진혁(Jin-Hyuck Kim) ; 백승환(Seungwhan Baek) ; 정상권(Sangkwon Jeong) |
| Keywords |
인쇄기판열교환기 ; 압력손실 ; 마찰계수 ; 전산유체해석 Printed Circuit Heat Exchanger(PCHE) ; Pressure loss ; Friction factor ; CFD |
| Abstract |
A newly developed type PCHE(Printed Circuit Heat Exchanger), which has a longitudinal corrugation flow channel, was fabricated using etching and diffusion bonding to evaluate its hydraulic performance. The pressure drop characteristics obtained from the experimental results are presented and the local friction factors associated with different hydraulic diameters and inclination angles are discussed. The results of a three-dimensional numerical simulation are presented, conducted using commercial CFD(Computational Fluid Dynamics) software at lower Reynolds number range. The numerical results were validated by experimental data obtained from helium gas experimental apparatus. The results of CFD prediction show fairly good agreement with the experimental data. |