Experimental analysis of pulse detonation engine fuelled by biogas mixtures

The demand on energy conversion system with high efficiency has led researchers to study the technology of Pulse Detonation Engine (PDE). Among the prominent features of PDE are enhanced thermodynamic efficiency, high thrust generation, reduced design complexity, and lightweight. The main focus of t...

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Main Author:	Ghazali, Ahmad Dairobi
Format:	Thesis
Language:	English
Published:	2015
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/80861/1/AhmadDairobiGhazaliMFKM2015.pdf
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spelling	my-utm-ep.808612019-07-24T00:08:12Z Experimental analysis of pulse detonation engine fuelled by biogas mixtures 2015-10 Ghazali, Ahmad Dairobi TJ Mechanical engineering and machinery The demand on energy conversion system with high efficiency has led researchers to study the technology of Pulse Detonation Engine (PDE). Among the prominent features of PDE are enhanced thermodynamic efficiency, high thrust generation, reduced design complexity, and lightweight. The main focus of this study is to develop a Pulse Detonation Engine with the ability of running on biogas fuel and operating at the minimum frequency of 10Hz. First, the combustion characteristics of biogas in detonation mode is calculated using NASA Computer program of Chemical Equilibrium with Applications (CEA) with two different oxidizing agents: air and oxygen. The equivalence ratio was varied from 0.7 to 1.4 with 0.1 increments. It was found that the increased methane concentration significantly improved performance in terms of pressure, temperature and Mach number of detonation characteristics. Next, an experiment was carried out to assess the effects of hydrogen addition in biogas on detonation characteristics performance. A single detonation tube and fuel with composition of 60% methane and 40% C 02 was used for the experiment. It was found that the optimal amount of hydrogen addition into the biogas fuel mixture is 15%. For this fuel composition, the detonation pressure is improved by 23%. Finally, the experiment is conducted at a frequency of 10 Hz. At this operating condition, the pressure of 9.87 bar and 20% addition of hydrogen has been identified to provide the most optimal PDE performance. It was found that the detonation characteristics of biogas are affected by the percentage of methane concentration in biogas. C 02 dilution is identified to have reduced the flame speed, temperature, and pressure of biogas. 2015-10 Thesis http://eprints.utm.my/id/eprint/80861/ http://eprints.utm.my/id/eprint/80861/1/AhmadDairobiGhazaliMFKM2015.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:122367 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 Ghazali, Ahmad Dairobi Experimental analysis of pulse detonation engine fuelled by biogas mixtures
description	The demand on energy conversion system with high efficiency has led researchers to study the technology of Pulse Detonation Engine (PDE). Among the prominent features of PDE are enhanced thermodynamic efficiency, high thrust generation, reduced design complexity, and lightweight. The main focus of this study is to develop a Pulse Detonation Engine with the ability of running on biogas fuel and operating at the minimum frequency of 10Hz. First, the combustion characteristics of biogas in detonation mode is calculated using NASA Computer program of Chemical Equilibrium with Applications (CEA) with two different oxidizing agents: air and oxygen. The equivalence ratio was varied from 0.7 to 1.4 with 0.1 increments. It was found that the increased methane concentration significantly improved performance in terms of pressure, temperature and Mach number of detonation characteristics. Next, an experiment was carried out to assess the effects of hydrogen addition in biogas on detonation characteristics performance. A single detonation tube and fuel with composition of 60% methane and 40% C 02 was used for the experiment. It was found that the optimal amount of hydrogen addition into the biogas fuel mixture is 15%. For this fuel composition, the detonation pressure is improved by 23%. Finally, the experiment is conducted at a frequency of 10 Hz. At this operating condition, the pressure of 9.87 bar and 20% addition of hydrogen has been identified to provide the most optimal PDE performance. It was found that the detonation characteristics of biogas are affected by the percentage of methane concentration in biogas. C 02 dilution is identified to have reduced the flame speed, temperature, and pressure of biogas.
format	Thesis
qualification_level	Master's degree
author	Ghazali, Ahmad Dairobi
author_facet	Ghazali, Ahmad Dairobi
author_sort	Ghazali, Ahmad Dairobi
title	Experimental analysis of pulse detonation engine fuelled by biogas mixtures
title_short	Experimental analysis of pulse detonation engine fuelled by biogas mixtures
title_full	Experimental analysis of pulse detonation engine fuelled by biogas mixtures
title_fullStr	Experimental analysis of pulse detonation engine fuelled by biogas mixtures
title_full_unstemmed	Experimental analysis of pulse detonation engine fuelled by biogas mixtures
title_sort	experimental analysis of pulse detonation engine fuelled by biogas mixtures
granting_institution	Universiti Teknologi Malaysia, Faculty of Mechanical Engineering
granting_department	Faculty of Mechanical Engineering
publishDate	2015
url	http://eprints.utm.my/id/eprint/80861/1/AhmadDairobiGhazaliMFKM2015.pdf
_version_	1747818271944474624

Experimental analysis of pulse detonation engine fuelled by biogas mixtures

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