Numerical Study of Oxygen Dilution and Temperature Distribution of Biogas Combustion in Bluff-Body MILD Burner

Cleaner and more efficient combustion processes are demanded by the combustion industry due to fuel depletion and air quality issues. A numerical study of a laboratory scale combustor is reported. The numerical simulations were carried out using ANSYS Fluent 14.5. Turbulence was modelled using the r...

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Main Authors: M. M., Noor, Wandel, Andrew P., Talal, Yusaf
Format: Conference or Workshop Item
Language:English
Published: 2013
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/4469/1/ACS2013-57_USQ_UMP_M.M.Noor_Numerical_Stydy_MILD_Combustion.pdf
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author M. M., Noor
Wandel, Andrew P.
Talal, Yusaf
author_facet M. M., Noor
Wandel, Andrew P.
Talal, Yusaf
author_sort M. M., Noor
collection UMP
description Cleaner and more efficient combustion processes are demanded by the combustion industry due to fuel depletion and air quality issues. A numerical study of a laboratory scale combustor is reported. The numerical simulations were carried out using ANSYS Fluent 14.5. Turbulence was modelled using the realizable k–ε model. The combustion chamber is an open end cylinder with the burner mounted at the bottom of the combustor. Biogas was used as a fuel with 60% methane and 40% carbon dioxide and oxidiser used was atmospheric air and synthetic air by mixing oxygen and nitrogen. The oxygen dilution ratio was analysed at the exhaust gas recirculation (EGR) and air supply mixing area. The dilution ratio is 40% for atmospheric air and a lower ratio when the low-oxygen synthetic air was used. The temperature throughout the combustion chamber was found to be close to homogeneous. The inlet air velocity did not affect the chamber and EGR temperature. In these simulations, MILD combustion was achieved.
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spelling UMPir44692015-03-03T09:19:13Z http://umpir.ump.edu.my/id/eprint/4469/ Numerical Study of Oxygen Dilution and Temperature Distribution of Biogas Combustion in Bluff-Body MILD Burner M. M., Noor Wandel, Andrew P. Talal, Yusaf TJ Mechanical engineering and machinery Cleaner and more efficient combustion processes are demanded by the combustion industry due to fuel depletion and air quality issues. A numerical study of a laboratory scale combustor is reported. The numerical simulations were carried out using ANSYS Fluent 14.5. Turbulence was modelled using the realizable k–ε model. The combustion chamber is an open end cylinder with the burner mounted at the bottom of the combustor. Biogas was used as a fuel with 60% methane and 40% carbon dioxide and oxidiser used was atmospheric air and synthetic air by mixing oxygen and nitrogen. The oxygen dilution ratio was analysed at the exhaust gas recirculation (EGR) and air supply mixing area. The dilution ratio is 40% for atmospheric air and a lower ratio when the low-oxygen synthetic air was used. The temperature throughout the combustion chamber was found to be close to homogeneous. The inlet air velocity did not affect the chamber and EGR temperature. In these simulations, MILD combustion was achieved. 2013 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/4469/1/ACS2013-57_USQ_UMP_M.M.Noor_Numerical_Stydy_MILD_Combustion.pdf M. M., Noor and Wandel, Andrew P. and Talal, Yusaf (2013) Numerical Study of Oxygen Dilution and Temperature Distribution of Biogas Combustion in Bluff-Body MILD Burner. In: Proceedings of the Australian Combustion Symposium , November 6-8, 2013 , The University of Westerm Australia. . (Published)
spellingShingle TJ Mechanical engineering and machinery
M. M., Noor
Wandel, Andrew P.
Talal, Yusaf
Numerical Study of Oxygen Dilution and Temperature Distribution of Biogas Combustion in Bluff-Body MILD Burner
title Numerical Study of Oxygen Dilution and Temperature Distribution of Biogas Combustion in Bluff-Body MILD Burner
title_full Numerical Study of Oxygen Dilution and Temperature Distribution of Biogas Combustion in Bluff-Body MILD Burner
title_fullStr Numerical Study of Oxygen Dilution and Temperature Distribution of Biogas Combustion in Bluff-Body MILD Burner
title_full_unstemmed Numerical Study of Oxygen Dilution and Temperature Distribution of Biogas Combustion in Bluff-Body MILD Burner
title_short Numerical Study of Oxygen Dilution and Temperature Distribution of Biogas Combustion in Bluff-Body MILD Burner
title_sort numerical study of oxygen dilution and temperature distribution of biogas combustion in bluff body mild burner
topic TJ Mechanical engineering and machinery
url http://umpir.ump.edu.my/id/eprint/4469/1/ACS2013-57_USQ_UMP_M.M.Noor_Numerical_Stydy_MILD_Combustion.pdf
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