| Title |
Numerical Analysis of Heat Transfer Characteristics in Corrugated Plate Type Heat Exchanger Channel |
| Keywords |
판형열교환기 ; 주름각도 ; 열전달 ; 누셀트수 ; Plate heat exchanger ; Corrugation angle ; Heat transfer ; Nusselt number ; RSM ; Reynolds stress model |
| Abstract |
The purpose of this study is to investigate the thermal and hydrodynamic characteristics of the channel in corrugated plate type heat exchangers numerically. Numerical work has been conducted using the Reynolds Stress Model (RSM) by utilizing the commerical finite-volume code, FLUENT. Based on this model, the dependence of heat transfer and friction factor on geometrical parameters have been investigated. It is found that larger corrugation angle give higher values of heat transfer coefficients and friction factors. As the reynolds number increases, the heat transfer coefficient also increases. It is also observed that the heat transfer coefficient reaches maximum while the friction factor stays relatively low at same corrugation angle. Through the analysis, it is found that the optimum corrugation angle for the heat exchanger performance exists. It is noted that the flow repulsions at the contact point of the two fluid streams make the flow mixing more active for larger corrugation angle and high reynolds number. |