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Contact Information:. Dr. Xia Wang Assistant Professor Department of Mechanical Engineering Tel: 248-370-2224 Fax: 248-370-4416 Email: [email protected] Fuel Cell Research at OU. Dr. Xia Wang. Research Resources. Personnel

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Contact Information:

Dr. Xia Wang

Assistant Professor

Department of Mechanical Engineering

Tel: 248-370-2224 Fax: 248-370-4416

Email: [email protected]



Research resources
Research Resources

  • Personnel

    • Thermal and Fluid Transport, thermodynamics: Dr. Brian P. Sangeorzan, Dr. Xia Wang, 1 PhD. Student, Undergraduates

    • System control: Dr. Mohamed A. Zohdy, Dr. Zissimos P. Mourelatos, 1 Ph.D student

    • Material (bipolar): Dr. Ismat A. Abu-Isa, Dr. Xia Wang, Dr. Brian P. Sangeorzan

  • Facilities

    • PIV: measure the flow in the bipolar channel

    • Twin screw extruder

    • Injection molding machine

    • Computer & FEMLAB software


Research topics
Research Topics

  • Interest: PEMFC( Proton Electrolyte Membrane Fuel Cell)

  • Three Levels of Research:

    • Single cell: (electrode + membrane + cathode)

    • Fuel cell Stack (Bipolar plate + cells)

    • Fuel cell system (Stack + accessories)




Single cell research topics
Single Cell-Research Topics

  • Transport Phenomena in the GDL

    • Experimental: Image for the thinner layer

    • Modeling: two phase flow with various porosity

  • Membrane: Prevention of Dehumidification

  • Cathode Side:

    • Water management: flooding

    • Thermal management: cooling the cell, and start-up time


Fuel cell stack
Fuel Cell Stack

  • Bipolar Plates

    • New materials: reduce the cost and weight, increase the durability

    • Seals

    • Flow in the bipolar Channel

      • Measurements

      • Simulation

  • Cooling and water management


Fuel cell system
Fuel Cell System

Selected from mathworks/ARC workshops: fuel cell systems and modeling


Research topics1
Research topics

  • Accurate Control model:

    • based on a better understanding of fuel cell itself

    • new sensor

  • Accessory equipment development

    • Low cost air management system (both for the PEMFC and automotive)

    • Characterize the supply system for the fuel cell


Collaborators
Collaborators

  • University:

    • Mississippi State University: GDL

    • University of Michigan: control

    • Kettering University

  • Industry:

    • DTE Tech

    • Ovonic Fuel Cell

    • Daimler Chrysler


Plans
Plans

New material and Design for

the Bipolar plate

Reduce Fuel Cells stacks

weight

Flow transport on the surface

of bipolar plate

Fuel cells system control +FCV

Department of Electronic

Engineering, OU

Daimler Chrysler

PEM Fuel Cell

Parametric Study

(Thermal and Fluid Transport)

Water management

Thermal management

Thermal Regeneration


A new bipolar plate
A new Bipolar Plate

Desired Property

  • Good electrical conductivity

  • Good thermal conductivity

  • Low fluid permeation

  • Corrosion resistance in PEM environment

  • Light weight

  • Low cost


Approach
Approach

  • Using elastomer+graphite Advantages for composites for polar plates

  • Advantages:

    • improving flexibility and impact strength

    • Improving sealing between plates. Might eliminate need for a rubber seal between polar plates

    • Improve handling & cell assembly


Experimental approach
Experimental Approach

  • Select elastomer with proven heat resistance and durability in PEM environment

  • Select different types of conducted graphite including platelets, fiber & woven fiber.

  • Use extrusion or other blending methods to form composite

  • Use compression molding or injection molding to make plaques to be used for further investigations.

  • Determine effects of elastomer type, graphite type and concentration on:

    • Original mechanical & electrical properties

    • Properties after heat aging

    • Properties after fluid aging

  • Choose promising candidates for further investigation:

    • Processing conditions for making polar plates

    • Performance in PEM cell structures

    • Optimization of polar plate design


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