Simulation and optimization of diesel autothermal reformer for fuel cell applications

Simulation and optimization of diesel autothermal reformer for fuel cell applications

Proton-electrolyte membrane (PEM) fuel cell systems offer a potential power source for utility and mobile applications. One of the most promising alternatives for large power requirements is to obtain the hydrogen from a liquid hydrocarbon fuel. A diesel fuel is an attractive option as feeds to fuel...

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Main Author: Fadli, Siti Norhanum
Format: Thesis
Language:English
Published: 2007
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/3119/1/SitiNorhanumFadliMFChe2007.pdf
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id my-utm-ep.3119
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institution Universiti Teknologi Malaysia
collection UTM Institutional Repository
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Fadli, Siti Norhanum
Simulation and optimization of diesel autothermal reformer for fuel cell applications
description Proton-electrolyte membrane (PEM) fuel cell systems offer a potential power source for utility and mobile applications. One of the most promising alternatives for large power requirements is to obtain the hydrogen from a liquid hydrocarbon fuel. A diesel fuel is an attractive option as feeds to fuel processor. Unfortunately, diesel fuel reforming is complicated and requires much higher temperatures. With the help of Aspen HYSYS 2004.1 the steady state model has been develop to optimize the performance, analyze the fuel processor and total system performance In this case study, the PEM fuel cell system consists of the fuel processing and clean-up section, PEM fuel cell section and auxiliary units. While the fuel processing and clean-up section consists of Autothermal Reformer, High-temperature Shift, Medium-temperature Shift, Low-temperature Shift, and Preferential Oxidation. The purpose of this study is to identify the influence of various operating parameters such as A/F and S/F ratio on the system performance that is also related to its dynamic behaviours. From the steady state model optimization using Aspen HYSYS 2004.1, an optimized reaction composition, in terms of hydrogen production and carbon monoxide concentration, corresponds to A/F ratio of 45 and S/F ratio of 25. Under this condition, n-hexadecane conversion of 100%, H2 yield of 19.8% on wet basis and carbon monoxide concentration of 25.428ppm can be achieved. The fuel processor efficiency is about 52.85% under these optimized conditions.
format Thesis
qualification_level other
author Fadli, Siti Norhanum
author_facet Fadli, Siti Norhanum
author_sort Fadli, Siti Norhanum
title Simulation and optimization of diesel autothermal reformer for fuel cell applications
title_short Simulation and optimization of diesel autothermal reformer for fuel cell applications
title_full Simulation and optimization of diesel autothermal reformer for fuel cell applications
title_fullStr Simulation and optimization of diesel autothermal reformer for fuel cell applications
title_full_unstemmed Simulation and optimization of diesel autothermal reformer for fuel cell applications
title_sort simulation and optimization of diesel autothermal reformer for fuel cell applications
granting_institution Universiti Teknologi Malaysia, Faculty of Chemical and Natural Resources Engineering
granting_department Faculty of Chemical and Natural Resources Engineering
publishDate 2007
url http://eprints.utm.my/id/eprint/3119/1/SitiNorhanumFadliMFChe2007.pdf
_version_ 1747814440443576320
spelling my-utm-ep.31192018-06-25T00:46:12Z Simulation and optimization of diesel autothermal reformer for fuel cell applications 2007-04 Fadli, Siti Norhanum TP Chemical technology Proton-electrolyte membrane (PEM) fuel cell systems offer a potential power source for utility and mobile applications. One of the most promising alternatives for large power requirements is to obtain the hydrogen from a liquid hydrocarbon fuel. A diesel fuel is an attractive option as feeds to fuel processor. Unfortunately, diesel fuel reforming is complicated and requires much higher temperatures. With the help of Aspen HYSYS 2004.1 the steady state model has been develop to optimize the performance, analyze the fuel processor and total system performance In this case study, the PEM fuel cell system consists of the fuel processing and clean-up section, PEM fuel cell section and auxiliary units. While the fuel processing and clean-up section consists of Autothermal Reformer, High-temperature Shift, Medium-temperature Shift, Low-temperature Shift, and Preferential Oxidation. The purpose of this study is to identify the influence of various operating parameters such as A/F and S/F ratio on the system performance that is also related to its dynamic behaviours. From the steady state model optimization using Aspen HYSYS 2004.1, an optimized reaction composition, in terms of hydrogen production and carbon monoxide concentration, corresponds to A/F ratio of 45 and S/F ratio of 25. Under this condition, n-hexadecane conversion of 100%, H2 yield of 19.8% on wet basis and carbon monoxide concentration of 25.428ppm can be achieved. The fuel processor efficiency is about 52.85% under these optimized conditions. 2007-04 Thesis http://eprints.utm.my/id/eprint/3119/ http://eprints.utm.my/id/eprint/3119/1/SitiNorhanumFadliMFChe2007.pdf application/pdf en public other Universiti Teknologi Malaysia, Faculty of Chemical and Natural Resources Engineering Faculty of Chemical and Natural Resources Engineering Aartun, I. , Silberoza B. , Venvik, H. J. , Pfeifer, P. , Gorke, O. , Shcubert, K. , Holmen, A. (2005). “Hydrogen Production from Propane in Rh-impregrated Metallic Microchannel Reactors and Alumina Foams.� Catalysts Today, Volume 105, Issues 3-4, 15 August 2005, pages 469-478 Amphlett, J. C. , Mann, R. F. , Peppley, B. A. , Roberge, P. R. , Rodrigues, A. , Salvador, J. P. (1998). “Simulation of a 250 kW Diesel Fuel Processor / PEM Fuel Cell System.� International Journal of Hydrogen Energy. 71. 179-184 Avci, A. K. , Onsan, Z. I. , Trimm, D. L. 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