| Title |
Theoretical Analysis of Factors Affecting to Heat Transfer Limitation in Screen Mesh Wick Heat Pipe |
| Keywords |
Screen mesh wick ; 스크린 메쉬윅 ; Working fluid quantity ; 작동유체주입량 ; Wick porosity ; 윅기공률 ; Pumping pressure ; 펌핑압력 ; Thermal resistance ; 열저항 ; Capillary pressure ; 모세관압력 |
| Abstract |
The purpose of the present study is to examine the factors affecting the heat transfer limitations of screen mesh heat pipe for electronic cooling by theoretical analysis. Diameter of pipe was 6mm, and mesh numbers are 50, 100, 150, 200 and 250 and water was selected as a working fluid. According to the change of mesh number, wick layer, inclination and saturation temperature, capillary pressure, pumping pressure, liquid friction coefficient in wick, vapor friction coefficient, capillary limitation, entrainment limitation, sonic limitation and boiling limitation are analyzed by theoretical design method of a heat pipe. As some results, the capillary limitation in small diameter of heat pipe is largely affected by mesh number and wick layer. |