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Thermal characteristics of a resurfaced condenser and evaporator closed two-phase thermosyphon
Authors:Masoud Rahimi  Kayvan Asgary  Simin Jesri
Affiliation:1. CFD Research Centre, Chemical Engineering Department, Razi University, Kermanshah, Iran;2. Iranian National Gas company-Kermanshah province, Kermanshah, Iran
Abstract:This paper reports a study on the effect of the condenser and evaporator resurfacing on overall performance of a 1 m height closed two-phase thermosyphon. Water was used as working fluid with a fill ratio and operating pressure was 0.75 and 160 mbar, respectively. The thermosyphon performances for plain and modified thermosyphon were studied at 44 power inputs from 43 W to 668 W. The results show that by making the evaporator more hydrophilic and the condenser more hydrophobic, it will be possible to increase the average thermal performance by15.27% and decrease the thermal resistance by 2.35 times compared with the plain one.
Keywords:Energy recovery  Thermosyphon  Heat transfer  Performance  Resurfacing
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