Heat transfer augmentation is the most important criteria in many chemical, pharmaceutical and mechanical industry sectors. Considering this factor into account, heat transfer surface modification is being done for heat transfer augmentation purpose. Making dimples on heat transfer surface is one such augmentation technique. This study presents numerical analysis of six channeled counter current dimpled plate heat exchanger, in which the relative depth (dimple depth to diameter ratio (δ/D)) is 0.1 and channel height to dimple diameter ratio (H/D) is 0.8. Simulations were run using FLUENT 15 version software, in which K–Ɛ model, from the simulation results the heat transfer parameters such as Nusselt number and overall heat transfer coefficient were calculated and compared with experimental results of corrugated plate heat exchanger of same number of channels, plate dimensions and under same flow rates as Dimpled plate heat exchanger. Results show that with increase in Reynolds number, the Nusselt number and overall heat transfer coefficient increases and the heat transfer parameters such as Nusselt number and heat transfer coefficient are higher for dimpled plate heat exchanger than corrugated plate heat exchanger.Keywords: Dimpled plate heat exchanger, heat transfer enhancement, Reynolds number, Nusselt numberCite this Article:M Dheenamma, P Kalaichelvi. Numerical Study of Heat Transfer in Six Channeled Dimpled Plate Heat Exchanger. Journal of Thermal Engineering and Application. 2015; 2(1): 15–25p.
