Numerical and experimental investigation of synthetic biogas pulse combustion

The pulse combustion propagation of a synthetic biogas mixture was numerically and experimentally studied. The gaseous fuel used in this study was a mixture of natural gas with 97% methane and CO2. Three equivalence ratios; 0.75 (lean), 1 (stochiometric) and 1.2 (rich) were used in the experiments....

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Main Author:	Soleimani, Mohammad
Format:	Thesis
Language:	English
Published:	2010
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/11192/6/MohammedSoleimaniMFKM2010.pdf
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id	my-utm-ep.11192
record_format	uketd_dc
spelling	my-utm-ep.111922017-09-26T01:27:27Z Numerical and experimental investigation of synthetic biogas pulse combustion 2010-04 Soleimani, Mohammad TJ Mechanical engineering and machinery The pulse combustion propagation of a synthetic biogas mixture was numerically and experimentally studied. The gaseous fuel used in this study was a mixture of natural gas with 97% methane and CO2. Three equivalence ratios; 0.75 (lean), 1 (stochiometric) and 1.2 (rich) were used in the experiments. An experimental setup that consists of a stainless steel pulse detonation tube with 100mm inner diameter and 1700mm length, ignition control system and filling station was installed to measure the characteristics of pulse combustion such as pressure and velocity. The effect of different equivalence ratio and different percentage of dilution on the performance of pulse combustion detonation was investigated by using Chapman-Jouguet theory. Two modes of pulse combustion propagation wave were observed: deflagration, detonation and in some cases deflagration to detonation transition (DDT). Results showed that the sensitivity of the mixture toward the detonation decreased with the increase of carbon dioxide dilution and increased with the increment of the equivalence ratio. In this study, for the mixture with 50% dilution, DDT and high speed deflagration with the velocity of around 700m/s were observed. The results were compared with calculated data using Chemical Equilibrium with Application (CEA) code and it was considered that CEA is useful software for calculating Chapman-Jougeut detonation parameters such as detonation velocity and pressure. From the analysis of detonation cell width in the soot foil technique, it was observed that the stochiometric mixture produces bigger cell width compared to rich mixture. So this indicates that the detonation wave of rich mixture can propagate through a smaller tube compared to lean and stochiometric mixtures. 2010-04 Thesis http://eprints.utm.my/id/eprint/11192/ http://eprints.utm.my/id/eprint/11192/6/MohammedSoleimaniMFKM2010.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Mechanical Engineering Faculty of Mechanical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Soleimani, Mohammad Numerical and experimental investigation of synthetic biogas pulse combustion
description	The pulse combustion propagation of a synthetic biogas mixture was numerically and experimentally studied. The gaseous fuel used in this study was a mixture of natural gas with 97% methane and CO2. Three equivalence ratios; 0.75 (lean), 1 (stochiometric) and 1.2 (rich) were used in the experiments. An experimental setup that consists of a stainless steel pulse detonation tube with 100mm inner diameter and 1700mm length, ignition control system and filling station was installed to measure the characteristics of pulse combustion such as pressure and velocity. The effect of different equivalence ratio and different percentage of dilution on the performance of pulse combustion detonation was investigated by using Chapman-Jouguet theory. Two modes of pulse combustion propagation wave were observed: deflagration, detonation and in some cases deflagration to detonation transition (DDT). Results showed that the sensitivity of the mixture toward the detonation decreased with the increase of carbon dioxide dilution and increased with the increment of the equivalence ratio. In this study, for the mixture with 50% dilution, DDT and high speed deflagration with the velocity of around 700m/s were observed. The results were compared with calculated data using Chemical Equilibrium with Application (CEA) code and it was considered that CEA is useful software for calculating Chapman-Jougeut detonation parameters such as detonation velocity and pressure. From the analysis of detonation cell width in the soot foil technique, it was observed that the stochiometric mixture produces bigger cell width compared to rich mixture. So this indicates that the detonation wave of rich mixture can propagate through a smaller tube compared to lean and stochiometric mixtures.
format	Thesis
qualification_level	Master's degree
author	Soleimani, Mohammad
author_facet	Soleimani, Mohammad
author_sort	Soleimani, Mohammad
title	Numerical and experimental investigation of synthetic biogas pulse combustion
title_short	Numerical and experimental investigation of synthetic biogas pulse combustion
title_full	Numerical and experimental investigation of synthetic biogas pulse combustion
title_fullStr	Numerical and experimental investigation of synthetic biogas pulse combustion
title_full_unstemmed	Numerical and experimental investigation of synthetic biogas pulse combustion
title_sort	numerical and experimental investigation of synthetic biogas pulse combustion
granting_institution	Universiti Teknologi Malaysia, Faculty of Mechanical Engineering
granting_department	Faculty of Mechanical Engineering
publishDate	2010
url	http://eprints.utm.my/id/eprint/11192/6/MohammedSoleimaniMFKM2010.pdf
_version_	1747814823219953664

Numerical and experimental investigation of synthetic biogas pulse combustion

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