Title

A CFD Model of Autothermal Reforming

Abstract

A numerical model based on computational fluid dynamics (CFD) was developed and validated to simulate the performance of a catalytic monolith reformer for the production of hydrogen that could be used in fuel cell systems. The whole reactor was modeled as porous media for the process of autothermal reforming with n-hexadecane feed. CFD results provided an adequate match to experimental data from literature with respect to temperature and the mole fractions of H2, CO2 and CO products. The percentage difference between each experimental measurement of the mole fraction of hydrogen and the corresponding CFD prediction was less than 16.8%. It was found that the thermal conductivity of the solid catalyst substrate affected the temperature profile in the reactor, but its effect on product hydrogen concentration was negligible. The calculated reforming efficiency based on hydrogen decreased by 11.8% as power input was increased from 1.7 to 8.4 kW.

Department(s)

Mechanical and Aerospace Engineering

Keywords and Phrases

Autothermal Reforming; CFD Model; Diesel; Hydrogen; Power; Thermal Conductivity

International Standard Serial Number (ISSN)

0360-3199

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2009 Professor T. Nejat Veziroglu, All rights reserved.

Publication Date

01 Sep 2009

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