Air fuel ratio study for mixture of biogas and hydrogen on mild combustion

Noor, M. M. and Wandel, Andrew P. and Yusaf, Talal (2014) Air fuel ratio study for mixture of biogas and hydrogen on mild combustion. International Journal of Automotive and Mechanical Engineering, 10 (1). pp. 2144-2154. ISSN 2229-8649

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Air fuel ratio (AFR) is an important parameter to indicate the combustion quality. Lower AFR will result in unburned hydrocarbons (UHC) that harm the environment. This paper discusses the simulation of AFR for the moderate or intense low oxygen dilution combustion using bluff-body burner. A low calorie biogas fuel of 50% methane, 20% hydrogen and 30% carbon dioxide were used in this simulation. The AFR evaluated based on the UHC produced and measured in the exhaust gas composition. Stoichiometric AFR produced zero UHC and zero excess oxygen measured in the exhaust gas. UHC in the exhaust gas is a waste of fuel and is possible to create unwanted combustion at an unwanted location. The study found that at AFR 4:1, almost zero UHC was detected in the exhaust gas pipe and exhaust gas recirculation pipe.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © Universiti Malaysia Pahang 2014. This publication is copyright. It may be reproduced in whole or in part for the purposes of study, research, or review, but is subject to the inclusion of an acknowledgment of the source. Open access journal.
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 26 Dec 2014 07:09
Last Modified: 10 Apr 2017 02:31
Uncontrolled Keywords: air fuel ratio; MILD combustion; biogas; hydrogen; exhaust gas recirculation
Fields of Research : 09 Engineering > 0913 Mechanical Engineering > 091305 Energy Generation, Conversion and Storage Engineering
09 Engineering > 0904 Chemical Engineering > 090405 Non-automotive Combustion and Fuel Engineering (incl. Alternative/Renewable Fuels)
09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation
Socio-Economic Objective: B Economic Development > 85 Energy > 8504 Energy Transformation > 850402 Hydrogen-based Energy Systems (incl. Internal Hydrogen Combustion Engines)
Identification Number or DOI: doi:10.15282/ijame.9.2013.29.0180

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