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Analysis of heat transfer enhancement in Rectangular microchannel using refrigerant- R22

Author : Rohit Pingale, Shriramshastri Chavali and Vivekanand Navadagi

Pages : 419-423, DOI:http://Dx.Doi.Org/10.14741/Ijcet/22774106/spl.5.6.2016.78
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Micro heat exchangers are becoming an important area of interest in many fields of developing technology that require compact high heat energy removal solutions. In our work numerical analysis is has carried out for rectangular micro channels with five sets of rectangular configurations, in order to find optimum configuration of microchannel. Analysis of rectangular microchannel has carried out for forced convection heat transfer condition with constant base area of 30mm length and 20 mm width. Experimental test setup is in developing stage. As compare to other configurations the heat transfer coefficient is more and dominant so 260μm diameter microchannel diameter is more optimistic as compare to other configuration of microchannel theoretically. Also as the heat input increase the configuration with higher hydraulic diameter show less pressure drop as compare to hydraulic diameter of 260 μm.

Keywords: Microchannel, Heat transfer, Pressure drop, Heat transfer coefficient.

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