Experimental Set up of Two Closed Loop Pulsating Heat Pipe (CLPHP) with Water base Fluids
N SanthiSree1, N V V S Sudheer2, P. Bhramara3

Manuscript received on 09 October 2019 | Revised Manuscript received on 23 October 2019 | Manuscript Published on 26 December 2019 | PP: 715-719 | Volume-8 Issue-12S October 2019 | Retrieval Number: L120810812S19/2019©BEIESP | DOI: 10.35940/ijitee.L1208.10812S19

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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Heat pipes are deliberated to be effective heat dissipation devices compared to other types of heat sinks due to their high effective thermal conductivity. Because of the flexibility in the design and layout of heat pipe turns along the heat source, pulsating heat pipes have gained popularity. One of the parameters that have the mainimpact on the presentation of CLPHP is the thermo physical properties of the working fluid. The properties of the working fluid affect the temperature difference between the evaporator and the condenser which in turn affect the thermal resistance of the CLPHP. In this connection, the influence of different working fluids is experimentally investigated on a two loop CLPHP, varying the evaporator heat flux. Pure fluids, viz., water, acetone, benzene and binary mixture, viz., Acetone-water and Benzene-water are utilized on working fluids. The heat input considered at the evaporator is 32W, 48W and 60W. The filling ratio is kept as 50 %. The results show that among the working fluids considered for the study, acetone exhibits least thermal resistance among the pure fluids at all heat fluxes considered in the analysis, while Acetone-water mixture has exhibited least thermal resistance among the water based mixtures.

Keywords: CLPHP, Condenser Temperature, Evaporator Temperature, Filling Ratio, Thermal Resistance, Working Fluid.
Scope of the Article: Fluid Mechanics