| Title |
The Study about Cooling Effect of a Heated Module in a Horizontal Channel with a Variation of Channel Height |
| Keywords |
Key words: conjugate heat transfer ; 복합열 ; module support resistance ; 열 저항 ; channel height ratio ; 채널 높이비 ; module ; 모듈 |
| Abstract |
The coupled conduction and convection heat transfer from a protruding heated module in a horizontal channel with a variation of channel height is experimentally investigated. The input power to the module is 3, 7 W and thermal resistance of module support is 0.06, 1.03 and 158 K/W. The Reynolds number ranged from 350 to 4500 corresponding to the inlet velocity (0.4∼1.3 m/s) and channel height (11∼35 mm). The results were obtained that the decrease of thermal resistance of module support reduces the module temperature by redistributing the heat flux and the overall thermal resistance of the module. In the study the effect of channel height is very significant in the adiabatic condition, but negligible in the conjugate condition. Finally, correlations for Nusselt number and with a variation of Reynolds number were developed respectively. |