| Title |
Effects of Working Fluid Filling Ratio and Heat Flux on Correlations of Heat Transfer Coefficient in Loop Thermosyphon |
| Keywords |
Loop thermosyphon ; 루프 써모사이폰 ; Working fluid filling ratio ; 작동유체 충액률 ; Heat flux ; 열유속 ; Correlation ; 상관식 ; Heat transfer coefficient ; 열전달계수 |
| Abstract |
Due to the coupling between momentum and energy transport theoretical analysis of the loop performance is very complicate, therefore it is necessary that these problems be solved by experimental investigation before applying the loop thermosyphon to heat exchanger design. The evaporator and condenser of the loop thermosyphon were made of carbon-steel, and distilled water was used as working fluid in the experiments. From the experimental data correlations of heat transfer coefficient for evaporator and condenser sections were obtained. For heat fluxes in the range of 13∼78 kW/m2, the correlation equations of heat transfer coefficients in evaporator and condenser predict the experimental behavior to within ±5% and ±20% respectively. |