Exergy analysis of NEXATM PEM fuel cell module

摘要：

Proton exchange membrane fuel cells (PEMFCs), as clean energy-converting devices, have been attracting enormous research interest as due to their high efficiency, high energy density, and low or zero emissions. In this paper, we present the exergy analysis of a 1.2 kW Nexa? PEM fuel cell module at variable operating temperatures, pressures, cell voltages, mass flow rates and air stoichiometrics. The exergy efficiency of the 1.2 kW Nexa? PEM fuel cell module was calculated, and the characteristic of the distributed energy system was considered. Therefore, we determined the exergy efficiency on Membrane Electrode Assembly (MEA), prepared by the experimental sample platinum supported on a Multi Walled Carbon Nano Tube (Pt/MWCNT). The exergy analysis is conducted on Nexa? PEM fuel cell module at the operating voltages of each cell from 0.001 V up to 0.84V and at air stoichiometrics from 13.0 to 2.1 in order to determine their effects on the efficiency of the fuel cell. The calculated results illustrate the significance of the operating temperature, pressure, cell voltage and air stoichiometry on the exegetic efficiency of the fuel cell.

关键词： Proton Exchange Membrane (PEM) fuel cell Energy efficiency Exergy efficiency Multi Walled Carbon Nano tube (MWCNT)

作者: E. Uyanga G. Sevjidsuren B. Bumaa D.Sangaa P. Altantsog

作者单位: Uyanga Enkhnaran Institute of Physics and Technology,Mongolian Academy of Sciences,Enkhtaivan Avenue Sevjidsuren Galsan Institute of Physics and Technology,Mongolian Academy of Sciences,Enkhtaivan Aven

会议类型: 国际会议

会议名称: The 6th International Forum on Strategic Technology(IFOST 2011)(第六届国际战略技术论坛)

会议地点: 哈尔滨

会议语种:英文

页码: 256-260

在线出版日期: 2011-08-22（万方平台首次上网日期，不代表论文的发表时间）