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ISBN : 978-1-56700-478-6

Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017)
2017, December 27-30 , BITS Pilani, Hyderabad, India

EFFECT OF PULSATILE FLOW ON PERFORMANCE OF ANODE SUPPORTED SOLID OXIDE FUEL CELL

Get access DOI: 10.1615/IHMTC-2017.1200
pages 851-858

摘要

Solid oxide fuel cells (SOFCs) have been subject of keen interest due to their high efficiency, eco-friendliness and fuel flexibility. In the present work, the focus has been given to the mass transport of hydrogen and water in the anode of a planar anode supported SOFC using multi-relaxation time lattice Boltzmann method. In the present work, a pulsating inlet condition is given for flow at anode. By the solution of transport in the clear channel and the porous support layer, the hydrogen diffusion rate and the water formation and removal rate is studied. From the study the effect of Womersley number and amplitude of pulsation on the cell performance has been obtained and performance has also been compared with that obtained in the case of steady flow. The performance curves obtained show that for same flow rate, performance decreases as pulsatile inlet is given to the flow channel. With either increase in Womersley number or decrease in amplitude of pulsation, a decrease in performance has been observed. It can be concluded that the flow pulsations affect the performance adversely as the steady flow ensures a constant supply of reactant to the reaction sites providing a steady output from the cell.
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