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Development of Low Liquid Fuel Burner

Mohd. Jaafar, Mohammad Nazri and Azeman, Mustafa and Hamidon, Musa and Wan Zaidi, Wan Omar and Mohd. Zamri, Yusoff and Kamsani, Abdul Majid and Mohamad Shaiful Ashrul, Ishak (2005) Development of Low Liquid Fuel Burner. Project Report. Faculty of Mechanical Engineering, Skudai, Johor. (Unpublished)

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Abstract

Recently, most of the gas turbine combustion research and development involves in lowering the emissions emitted from the combustor. Emission causes adverse affect to the world and mankind especially. Main concern of the present work is to reduce the NOx emission since the CO emission could be reduced through homogeneous mixing of fuel and air. Homogeneous mixing of fuel and air is also needed in order to reduce NOx emission. A liquid fuel burner system with radial air swirler vane angle of 30o, 40o, 50o and 60o has been investigated using 163mm inside diameter combustor. Orifice plates with three different sizes of 20mm, 25mm and 30mm were inserted at the back plate of swirler outlet. All tests were conducted using diesel as fuel. Fuel was injected at two different positions, i.e. at upstream and downstream of the swirler outlet using central fuel injector with single fuel nozzle pointing axially outwards. Experiment has been carried out to compare the three emissions NOx, CO and SO2. NOx reduction of about 53 percent was achieved for orifice plate of 20mm with downstream injection compared to orifice plate of 20mm with upstream injection. CO2 and SO2 was reduced about 26 percent and 56 percent respectively for the same configuration. This comparison was taken using swirler vane angle of 60o. The overall study shows that larger swirler vane angle produces lower emission results compared to the smaller ones. Smaller orifice plates produce better emission reduction. Meanwhile, downstream injection position significantly decreases the emission levels compared to upstream injection position. Combination of smallest orifice plate and largest swirler vane angle with downstream injection produce widest and shortest flame length.

Item Type:Monograph (Project Report)
Uncontrolled Keywords:Combustion; Air Swirlers; Exhaust Gas; NOx emission
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:539
Deposited By: Norazrin Kurmin
Deposited On:16 Feb 2007 07:57
Last Modified:13 Oct 2010 05:14

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