Faculty Advisor

Brown, Christopher A.

Abstract

Polymer Electrolyte Membrane/Proton Exchange Membrane (PEM) fuel cells operate utilizing electrochemical reactions which take place on a surface. This work sets out to test the hypothesis, that increasing area due to greater roughness will increase the power output density. Nafion membranes were molded using heated aluminum dies, which were ground and machined to produce a variety of surface textures . The textures of the each Nafion membrane were measured using an OlympusLEXT 3100 scanning laser microscope. Area-scale analysis and scale-based correlation testing were used to determine the extent of correlations between the textures and the power density of the fuel cell and the scale ranges over which correlations exist.

Publisher

Worcester Polytechnic Institute

Date Accepted

April 2009

Major

Mechanical Engineering

Project Type

Major Qualifying Project

Accessibility

Unrestricted

Advisor Department

Mechanical Engineering

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