MEMBRANE EUMIDWICATION OPTIMIZATION IN PROTON EXCHANGE MEMBRANE-FUEL CELLS

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" MEMBRANE EUMIDWICATION OPTIMIZATION IN PROTON EXCHANGE MEMBRANE-FUEL CELLS "

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	151221
Doc. No	:	ET23013
Main Entry	:	Yen Edwar Cardenas C6mez
Title Proper	:	MEMBRANE EUMIDWICATION OPTIMIZATION IN PROTON EXCHANGE MEMBRANE-FUEL CELLS
Note	:	This document is digital این مدرک بصورت الکترونیکی می باشد
Abstract	:	Fuel cells are electrochemical reactors that convert chemical energy into electricalenergy efficiently and without releasing harmhl compounds to the environment. Amongall the types of fuel cells that have been developed, the most suited for mobileapplications is the Proton Exchange Membrane Fuel Cell (PEMFC). The performance ofPEMFC is substantially influenced by different losses through the cell. To monitor theselosses, a Pt/H2 electrode was used as a reference. Finally, the cell was optimized usingH2/02 as reactants. Results show that higher pressures (4 atm) improves cathode losses,in this manner, higher anode humidification temperature (80پ‍-C) improves the cellperformance. The optimal cell temperature was 55OC. Some of these conditions wereadapted to a Direct Methanol Fuel Cell (DMFC). Optimal conditions were 8M methanol,3 atm anode-cathode pressure. Power densities of 2.4 m ~ l c r n ' at 12.7 m.4/cm2 wereobtained at 55پ‍-C cell temperature.-....,....-...,..tested for theQ1 PC1 bus cardBoth these projects mere sofixare des elopment efforts tonards contributing to dlfferentaspects of Roboucs and lZ1echatronics projects m the Controls and Roboucs Group..
Subject	:	Electericl tess
	:	برق
electronic file name	:	TL46242.pdf
Title and statement of responsibility and	:	MEMBRANE EUMIDWICATION OPTIMIZATION IN PROTON EXCHANGE MEMBRANE-FUEL CELLS [Thesis]