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Dispersion modelling and analysis of hydrogen fuel gas released in an enclosed area: A CFD-based approach

The use of hydrogen gas as a fuel to be burned or to be spent in a hydrogen fuel cell vehicle is increasing. While hydrogen is a renewable and clean energy career, the safety aspects associated with it is still a key issue. Hydrogen has a wide flammability range and needs less energy to be ignited,...

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Main Authors: Dadashzadeh, Mohammad, Ahmad, Arshad, Khan, Faisal
Format: Article
Published: Elsevier Ltd 2016
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/69221/
http://dx.doi.org/10.1016/j.fuel.2016.07.008
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spelling my.utm.692212017-11-22T00:45:09Z http://eprints.utm.my/id/eprint/69221/ Dispersion modelling and analysis of hydrogen fuel gas released in an enclosed area: A CFD-based approach Dadashzadeh, Mohammad Ahmad, Arshad Khan, Faisal TJ Mechanical engineering and machinery The use of hydrogen gas as a fuel to be burned or to be spent in a hydrogen fuel cell vehicle is increasing. While hydrogen is a renewable and clean energy career, the safety aspects associated with it is still a key issue. Hydrogen has a wide flammability range and needs less energy to be ignited, compared to other common fuels. Experiments on hydrogen safety are not an economic and safe approach; hydrogen is a very dangerous substance, and expensive to test in a safe environment. Use of Computational Fluid Dynamics (CFDs) is an alternative method to predict the behaviour of hydrogen gas after an accidental release. Providing the concentration profile for the area of concern, and the ability to investigate different parameters such as ventilation, obstacles’ configurations and ignition sources are the advantages of using CFDs codes for the safe design of hydrogen stations and hydrogen fuel cell vehicles. In the current study, a CFD based approach is proposed to evaluate the dispersion behaviour of hydrogen gas after a release from a hydrogen fuel cell car in an enclosed area. The fuel concentration profile in the compartment is produced, considering different ventilation conditions. Mitigation measures are also applied to improve the ventilation condition and decrease the fuel concentration below the flammable level. The proposed approach is useful for better design of safety measures to prevent consequent accidents or minimise the harmful impacts during an accident. Elsevier Ltd 2016 Article PeerReviewed Dadashzadeh, Mohammad and Ahmad, Arshad and Khan, Faisal (2016) Dispersion modelling and analysis of hydrogen fuel gas released in an enclosed area: A CFD-based approach. Fuel, 184 . pp. 192-201. ISSN 0016-2361 http://dx.doi.org/10.1016/j.fuel.2016.07.008 DOI:10.1016/j.fuel.2016.07.008
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Dadashzadeh, Mohammad
Ahmad, Arshad
Khan, Faisal
Dispersion modelling and analysis of hydrogen fuel gas released in an enclosed area: A CFD-based approach
description The use of hydrogen gas as a fuel to be burned or to be spent in a hydrogen fuel cell vehicle is increasing. While hydrogen is a renewable and clean energy career, the safety aspects associated with it is still a key issue. Hydrogen has a wide flammability range and needs less energy to be ignited, compared to other common fuels. Experiments on hydrogen safety are not an economic and safe approach; hydrogen is a very dangerous substance, and expensive to test in a safe environment. Use of Computational Fluid Dynamics (CFDs) is an alternative method to predict the behaviour of hydrogen gas after an accidental release. Providing the concentration profile for the area of concern, and the ability to investigate different parameters such as ventilation, obstacles’ configurations and ignition sources are the advantages of using CFDs codes for the safe design of hydrogen stations and hydrogen fuel cell vehicles. In the current study, a CFD based approach is proposed to evaluate the dispersion behaviour of hydrogen gas after a release from a hydrogen fuel cell car in an enclosed area. The fuel concentration profile in the compartment is produced, considering different ventilation conditions. Mitigation measures are also applied to improve the ventilation condition and decrease the fuel concentration below the flammable level. The proposed approach is useful for better design of safety measures to prevent consequent accidents or minimise the harmful impacts during an accident.
format Article
author Dadashzadeh, Mohammad
Ahmad, Arshad
Khan, Faisal
author_facet Dadashzadeh, Mohammad
Ahmad, Arshad
Khan, Faisal
author_sort Dadashzadeh, Mohammad
title Dispersion modelling and analysis of hydrogen fuel gas released in an enclosed area: A CFD-based approach
title_short Dispersion modelling and analysis of hydrogen fuel gas released in an enclosed area: A CFD-based approach
title_full Dispersion modelling and analysis of hydrogen fuel gas released in an enclosed area: A CFD-based approach
title_fullStr Dispersion modelling and analysis of hydrogen fuel gas released in an enclosed area: A CFD-based approach
title_full_unstemmed Dispersion modelling and analysis of hydrogen fuel gas released in an enclosed area: A CFD-based approach
title_sort dispersion modelling and analysis of hydrogen fuel gas released in an enclosed area: a cfd-based approach
publisher Elsevier Ltd
publishDate 2016
url http://eprints.utm.my/id/eprint/69221/
http://dx.doi.org/10.1016/j.fuel.2016.07.008
_version_ 1643656035512090624
score 13.211869

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