Design of PEM Fuel Cells & other Energy Conversion Devices

Efficiency of all energy conversion devices like Fuel Cells depend on efficient management of all energies arising from the kinetics of the constituting fluids and adequate capturing of the detail of solid-fluid interactions. Unlike flows in macroscopic devices, complexity in the analysis of microflows varies with the configuration and kinetics. Apart from the problem of water-flooding at the cathode side of the PEM Fuel Cell, inadequate analysis of the exchange of energies at the near-wall of the enclosing channels constitute unresolved thermal mismanagement. Slip-flow irreversibility studies based on Second Law of Thermodynamics in microchannels have been undertaken. In this area of research, application of existing microfluidic models to the design of thermal efficient fuel cells and other energy conversion devices is proposed. Few of relevant publications in this area include:

·          E.O.B. Ogedengbe and M.A. Rosen, “Conjugate Heat Transfer with Slip Flow Irreversibilities for PEM Fuel Cell Micro-Cooling”, 2nd Climate Change Technology Conference (CCTC 2009), Hamilton, ON, Canada, 12-15 May, 2009

·        E.O.B. Ogedengbe, G.F. Naterer and M.A. Rosen, “Convective Exergy Losses of Developing Slip Flow in Microchannels”, International Journal of Exergy, Vol 4, n 4, pp. 384-400, 2007

·         E.O.B. Ogedengbe, G.F. Naterer and M.A. Rosen, “Slip Flow Irreversibility of Dissipative Kinetic and Internal Energy Exchange in Microchannels”, Journal of Micromechanics and Microengineering, vol. 16, pp. 2167 - 2176, 2006

 

 

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