Effect of Pure and Binary Fluids on Thermal Performance of Closed Loop Pulsating Heat Pipe

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Abstract

Pulsating heat pipe is the raising methodology of cooling systems in many areas. CLPHP is a passive mode of phase change heat transfer device having potential to transfer heat from source to sink in less span. Heat transfer performance of this method is improving day by day as giving less thermal resistance. Number of experimentations are conducting to increase the efficiency of pulsating heat pipes in many aspects i.e. varying lengths, working fluids, number of turns, different fill ratios, heat inputs and orientation. As taking part of these research a five turn closed loop pulsating heat pipe (of tube inner diameter 2mm, outer diameter 3mm; adiabatic section length 170mm, condensation section length is50mm, evaporation section length is 42mm) working with pure and binary fluids (water-acetone, water-ethanol) compared with water, Acetone, Ethanol with heat inputs 20w, 40w, 60w, 80w, and fill ratio 50%, also the orientations are horizontal and vertical. The analysis from the results obtained was the thermal resistance of all working fluids is drastically diminishing from 20w to 40w heat input and slowly from 40w to 80w.

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Suresh, J. V., Bhramara, P., & Nagasri, K. (2020). Effect of Pure and Binary Fluids on Thermal Performance of Closed Loop Pulsating Heat Pipe. International Journal of Engineering and Advanced Technology, 9(3), 1716–1721. https://doi.org/10.35940/ijeat.c5612.029320

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