@Article{, title={Experimental Investigation of Thermosyphon Thermal Performance Using Different Filling Ratio}, author={Rawad M.Thyab and Samar J. Ismaelb, and Talib Z. Fargea,}, journal={Engineering and Technology Journal مجلة الهندسة والتكنولوجيا}, volume={39}, number={1part(A) Engineering}, pages={34-44}, year={2021}, abstract={The presentwork investigated the thermal performance of thermosyphonby using distilled water as a working fluid at differentfilling ratios (50%, 60%, and 70 %). The thermosyphon was manufactured from a copper tube with outer and inner diameters (26 and 24) mm, respectively. The thermosyphon was tested experimentally at different input power (100, 200 and 300) Watt.The operating temperature of the oil was chosen below 85°C. Experimental results revealed thatthe filling ratioof60% exhibited the best heat dissipation at the highest operating temperature. While the low operating temperature and 50% filling ratio show betterheat dissipation. Further, it was found that the thermal resistance of the thermosyphon was obviously decreased with increasing the input power. The percentage decrease in the thermalresistance of the thermosyphon at a filling ratio of 0.6 was 14.6 % compared with that filling ratio of 0.5 at an input power of 300 W.

} }