Title of article :
Thermally integrated fuel processor design for fuel cell applications
Author/Authors :
Northrop، نويسنده , , William F. and Choi، نويسنده , , Sang Ok and Thompson، نويسنده , , Levi T.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
12
From page :
3447
To page :
3458
Abstract :
Effective thermal integration could enable the use of compact fuel processors with PEM fuel cell-based power systems. These systems have potential for deployment in distributed, stationary electricity generation using natural gas. This paper describes a concept wherein the latent heat of vaporization of H2O is used to control the axial temperature gradient of a fuel processor consisting of an autothermal reformer (ATR) with water gas shift (WGS) and preferential oxidation (PROX) reactors to manage the CO exhaust concentration. A prototype was experimentally evaluated using methane fuel over a range of external heat addition and thermal inputs. The experiments confirmed that the axial temperature profile of the fuel processor can be controlled by managing only the vapor fraction of the premixed reactant stream. The optimal temperature profile is shown to result in high thermal efficiency and a CO concentration less than 40 ppm at the exit of the PROX reactor.
Keywords :
Thermal integration , Fuel cell , Autothermal reforming , Methane , Fuel processing
Journal title :
International Journal of Hydrogen Energy
Serial Year :
2012
Journal title :
International Journal of Hydrogen Energy
Record number :
1669875
Link To Document :
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