Abstract
In this present work, experiments were performed on coated Stainless Steel 304 fin to understand the effect of coating on heat transfer parameters of fin. Aluminium and Copper were chosen as coating materials and these were coated on the Stainless steel 304 substrate by using Thermal Spray Method. Conducted experiments on different coated and none coated fins at various heat inputs using Fin-Pin apparatus in our heat transfer laboratory and necessary readings were noted to calculate Reynolds Number, Nusselt Number, Heat transfer coefficient, Thermal conductivity and fin efficiency. The value of thermal conductivity of fin without was obtained as 52.3 W/m K, coated with Aluminium as 166.75 W/m K and coated with Copper as 280.6 W/m K. The improvement of percentage of fin efficiency in case of fin coated with Aluminium was obtained as 73.6% compared with fin without coating, but in case of fin coated with Copper was obtained as 81.7% compared with fin without coating and 4.6% compared with fin coated with Aluminium.
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