| Title |
An Experimental Study on Heat Transfer Characteristics of Thermal Diode Type Enclosure Cavity |
| Keywords |
Thermal diode ; 열다이오드 ; Heat source ; 집열부 ; Heat sink ; 방열부 ; Guide vane ; 안내판 ; Dimensionless channel depth ; 무차원 유동통로깊이 |
| Abstract |
Thermal diode is a device which allows heat to be transferred in one direction by convection due to density difference of fluid, and blocks heat flow in the opposite direction. It is simple in construction and low in cost. And so, it is used as heat collection system of solar energy. In order to acquire a basic design data, thermal diode heat collection system has been studied experimentally for flux Rayleigh numbers from 2×108 to 8×108. The heat transfer rate of this system is shown 10∼47% higher than that of other earlier research results. The correlation obtained in this study is Nu＝0.0037(Ra*)0.429. |