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۱Exergy Analysis of Direct Methanol Fuel Cell Based on the Experimental Setup
اطلاعات انتشار: World Applied Sciences Journal، سي و يكم،شماره۱۰، ۲۰۱۴، سال
تعداد صفحات: ۱۰
In this paperthe comprehensive exergy analysis of an80w Direct Methanol Fuel Cell (DMFC)investigates at variable operating temperature, pressure, current density and cell voltage. First, to validate the method of calculating exergy, it is compared and examined with the calculations of exergy analysis of Proton Exchange Membrane Fuel Cell (PEMFC)using methanol [1]. The calculations of the physical and chemical exergies are carried out for different temperature and pressure. Finally, the analysis is conducted on fuelcell operating voltages of 1, 1.5 and 1.8V and at current density of 0.4 and 0.5Acm 2 in order to determine theireffects on the efficiency of the fuel cell.Results show that the exergy efficiency increases by increasing the operating pressure and temperature. The optimum exergy efficiency can be applied at higher current densities.
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