Numerical modeling for thermal management of fuel cell by using Al2O3, SiC and CuO water based nanofluids
Keywords:
Fuel Cell, Cooling, Simulation, Nanofluids, Water-Al2O3, Water-SiC, Water-CuOAbstract
Fuel cell thermal control is very much vital for its smooth and effective performance. The current investigation relates to a fuel cell which is encapsulated in a horizontal duct open at both the ends. The nanofluid as coolant is allowed to pass through the annular region between the fuel cell and duct. Three different water based nanofluids, namely Water-Al2O3, Water-SiC and Water-CuO, are considered as coolants in the present investigations. The numerical studies are carried out to obtain the heat transfer behavior of encapsulated fuel cell for maintaining its temperature within the safe limit. For that, a 2D numerical model is being developed. The continuity, momentum and energy equations are solved to predict the thermal behavior. The simulations are performed to predict the temperature fields and temperature contours. The trends of results are along the expected lines. Simulation results predicted with three different water based nanofluids are analyzed and compared for realizing the relative importance of the stated nanofluids. The model parameters considered are fuel cell heat flux of 10 W/cm2 and nanofluid velocity of 9 m/s at duct inlet. The Water-SiC is found as the nanofluid rendering very much ideal fuel cell application without any kind of thermal letdown.
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