Abstract

This research aims to study the heat transfer of a heat pipe using nanofluid as a working fluid by using a closed loop oscillating heat pipe with check valve (CLOHP/CV). The nanoparticles used this study are deionized water and TiO2 as a working fluid. The experiment the operating temperature was adjusted in the range of 60, 70 and 80 degrees Celsius and the inclination angle of the heat pipe in the range of 0 and 45 degrees. It was found that when using TiO2 as a working fluid, at inclination angle of 45 degrees, an operating temperature of 80 degrees Celsius, the highest heat transfer was 297.76 W, the highest heat flux was 2887.09 W/m2 the highest heat transfer coefficient was 1547. 53 W/m2 °C and the highest thermal efficiency was 0. 17. When using TiO2 as a working fluid, at inclination angle of 45 degrees, at operating temperature of 80 degrees Celsius the lowest heat resistance was 0. 26 C/W. In addition, we found that CLOHP/CV using TiO2, resulted in higher heat transfer ( 82. 23% ) than when using deionized water and lower heat resistance than using deionized water 92.85%.

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