Abstract
Heat pipes are used to transfer heat, which are hollow cylindrical shape device filled with small amount of working fluid, which can change its phase. The rate of heat transfer in heat pipes compared to normal heat exchanging devices is more. Depending on the applications of heat transfer various heat pipes are being designed. Methanol fluid is used with 50% fill ratio. It is made of copper with outer diameter of 15.88mm and inner diameter of 14.88mm. It consists of a screen mesh made of copper powder inside it with thickness of 0.5mm. Due to heat input methanol changes its phase from liquid to vapor. The vapor loses its heat and changes its phase back to liquid in the condenser. At the condenser section the vapour gives up it heat and changes its phase from vapour to liquid. The screen mesh assists the flow of condensed working fluid through capillary action. Optimized the results by “Taguchi method” using “Minitab software”. The Thermal analysis was done with the optimum conditions, which were obtained as a result from the optimization method by Ansys Fluent software. Then finally compared the thermal parameters obtained from experiments with the Thermal analysis result. It is found the maximum heat transfer rate is optimized using meshed wick heat pipe conditions.
Highlights
Usage of Two Phase Cooling Technology has remarkably improved the Cooling setups of the electronic devices
From the table given below it can infer that the inclination angle contributes more to the values of thermal performance parameters as compared with sematic et al [13]
The effective thermal conductivity of a heat pipe depends on the thermal resistance
Summary
Usage of Two Phase Cooling Technology has remarkably improved the Cooling setups of the electronic devices. Heat pipe has working fluid embedded inside the chamber, which take advantage of capillary pressure to transfer the liquid from condenser section to evaporator section. Semenic and catton [13], conducted many experiments by varying thickness of the wick, powder size to evaluate its performance. FMHP consisting of composite fibre wick can transfer the heat load of 3 was effectively up to 100 mm distance with heatpipe thermal resistance ranging 0.25 – 0.45oC/W by handheld device [1]. Dependence of thermal performance on the particle size & thickness of wick was investigated [2].
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