Thermodynamic Analysis of Fuel Processor for Fuel Cell Vehicles

摘要

Thermodynamic analysis was carried out for theoretical reaction of hydrogen produced from dimethyl ether (DME) auto-thermal reforming by using the minimum of GIBBS energy. The volume content of various gases were calculated at adiabatic condition as function of air to DME ratio (0.2～0.8), H_2O to DME ratio (1-6) and pressure (0.1～0.6MPa). The result proves that the volume content of H_2 decrease with the increasing of pressure. With the increasing of the H_2O to DME ratio and the O2 to DME ratio the volume of H_2 increases first then decreases. With the increasing of the H_2O to DME ratio the volume of CH_4 and CO decreases, the volume of CO_2 increases. The model reliability was verified experimentally on self-designed equipment. The experiments data are closed 1o simulation results.