Universiti Teknologi Malaysia Institutional Repository

Pulse combustion of hydrocarbon fuel

Abdul Wahid, Mazlan and Ujir, M. H. and Zahar, A. (2006) Pulse combustion of hydrocarbon fuel. In: Eighth Asia-Pacific International Symposium on Combustion and Energy Utilization, 2006, Sochi, Russian Federation.

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Abstract

Pulse combustion is a periodic combustion process. It is a burning cycle that drives a resonant pressure wave, which in turn enhances the rate of combustion, resulting in a selfsustaining, large-scale oscillation. It can occur as a deflagration or detonation. Deflagration is a combustion wave that travel into unburned mixture at subsonic velocity while detonation combustion wave travels at a sonic or greater velocity. When a pulse combustion process reaches the detonation condition, it provides to several advantages for propulsion such as more compact and efficient systems. The main parameter measured in this study was the velocity of combustion wave propagation. This was followed by the design and fabrication of the combustion chamber, fuel supply system and ignition system. An ionization circuit and probes were fabricated to capture the combustion wave propagation. Experiments were conducted using two configurations; without spiral and with spiral. From the reading of signals that was displayed using oscilloscope, the experiment conducted without the use of spiral gave the velocity of combustion wave propagation about 835.95m/s. By using obstacle configuration, the combustion wave was successfully accelerated to 1861.76 m/s and this velocity exceeded the speed of sound with Mach number of 6.16.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:pulse combustion, deflagration to detonation transition (DDT), obstacle, combustion wave, hydrocarbon
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:25274
Deposited By: Liza Porijo
Deposited On:14 May 2012 07:11
Last Modified:10 Jun 2014 02:10

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