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Performance analysis of thermosyphon heat exchanger charged with ZnO for heat recovery application


Author : Makarand Dharmadhikari and R.K.Patil

Pages : 289-294, DOI:http://Dx.Doi.Org/10.14741/Ijcet/22774106/spl.5.6.2016.55
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Abstract

A heat pipe is a device that can transport large quantities of heat with a very small difference in temperature
between the hot ends to the other end. In this study, the concept of the evaporation process of heat pipe is applied in
order to perform heat transport process. The objective of this study is to compare the efficiency between the heat pipe with water as a working fluid and nanofluid at various nano fractions in order to perform the heat transport process. The working fluid of heat pipe had been divided into three samples as water, 1% of nanofraction and 2% of
nanofraction. These three set of heat pipes were made without the wick but dealing with inclination angle of 90° to
see the performance of the heat pipe. All sets of heat pipes were built by the total length of 550 mm length and 16 mm diameter using copper as the material of pipe. Gravity pumping was used with the inclination angle to pump back the working fluid back to the evaporator section. To achieve the objective of this study, all sets of pipes were studied experimentally to find the most efficient between all sets of heat pipe. The important parameter involves in this study are the heat transport and Effectiveness. After performing the experimentation the objective of this case study is achieved, which showed the set of heat pipe is more efficient which is having 2% nanofraction.

Keywords: Thermosyphons, Heat Pipe heat exchanger, ZnO, Heat transport capacity, Effectiveness.

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