Abstract/Details

Design and characterization of an isobutane reformer for fuel cell applications


2010 2010

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Abstract (summary)

The research presented here describes the design and characterization of an isobutane reformer for the production of hydrogen. The design is for a reformer large enough of producing the hydrogen necessary for achieving a 1kW power output from a fuel cell. The reformer is a tubular packed bed reactor with an inside diameter of 20 mm and an overall length of 1ft. A clamp furnace heats the reformer. The reaction kinetics are based on literature data and the temperature profile, pressure profile, and component flow rates are modeled with computer simulation. A parametric study is presented to show the effects of varying process conditions. The optimal process parameters are an initial temperature of 850K, a feed of 0.00085 mol/s of isobutane, a ratio of eight times the isobutane flow for steam flow, and operating pressure of 1.2 atm or around atmospheric conditions. Throughout the study the pressure drop was deemed to be negligible. A heat transfer simulation was also conducted and compared to laboratory data. The simulated heat transfer was shown to be 9.5x105 W/m3. The maximum laboratory heat transfer observed was 7590 W/m3, with an average value of 2720 W/m3. Further laboratory experiments are needed to validate the simulated heat transfer.

Indexing (details)


Subject
Alternative Energy;
Chemistry;
Chemical engineering;
Energy
Classification
0363: Alternative Energy
0485: Chemistry
0542: Chemical engineering
0791: Energy
Identifier / keyword
Applied sciences; Pure sciences
Title
Design and characterization of an isobutane reformer for fuel cell applications
Author
Vaughn, Wesley R.
Number of pages
87
Publication year
2010
Degree date
2010
School code
0491
Source
MAI 48/06M, Masters Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
9781124132181
Advisor
Palanki, Srinivas
University/institution
University of South Alabama
University location
United States -- Alabama
Degree
M.S.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
1485496
ProQuest document ID
744090160
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/744090160
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