Universiti Teknologi Malaysia Institutional Repository

Experimental analysis on the formation of CO-NO-HC in swirling flow combustion chamber

Ashrul Ishak, Mohamad Shaiful and Mohd. Jaafar, Mohammad Nazri and Wan Omar, Wan Zaidi (2014) Experimental analysis on the formation of CO-NO-HC in swirling flow combustion chamber. Jurnal Teknologi, 72 (4). pp. 21-26. ISSN 2180-3722

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Official URL: http://dx.doi.org/10.11113/jt.v72.3909

Abstract

The main purpose of this paper is to evaluate the production of CO-NO-HC emissions while varying the swirl angle of curve vane radial swirler. Swirling flow generates central recirculation region (CRZ) which is necessary for flame stability and enhances fuel air mixing. Therefore designing an appropriate air swirler is a challenge to produce stable, efficient and low emission combustion inside burner system. Four radial curved vane swirlers with 30o, 40o, 50o and 60o vane angles corresponding to swirl numbers of 0.366, 0.630, 0.978 and 1.427 respectively were used in this experiment to measure the vane angles effect on emission production in the combustion chamber. Emission measurements were conducted at 5 axial distances from the burner throat, and at 5 locations along the radius starting the central axis at each section. It was found that at the core near the throat, CO and HC concentrations are low due to high available O2 and high fuel mixing rate producing efficient combustion. This is due to the high shear region created the high swirl flow.

Item Type:Article
Uncontrolled Keywords:combustion, air swirler, swirl strength
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:55150
Deposited By: Fazli Masari
Deposited On:11 Aug 2016 09:48
Last Modified:01 Nov 2017 04:17

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