The present work shows that how the angle of an air swirler vane affects the combustion characteristics of liquid fuels such as flame temperature, radiation heat flux, combustion efficiency, and pollutants' emission. It finds out an optimum angle of vane based on flame characteristics. Three vanes with angles of 0 deg, 40 deg, and 80 deg which induced low and high-swirl intensities in air stream were investigated, and the combustion characteristics of flame were quantified. The flame temperature was measured by an S-type thermocouple, and a Testo 350 XL gas analyzer was used to determine the CO and NO pollutant concentrations. Also, gravity method was used to gauge the soot concentration along the furnace, and a SBG01 water cooled heat flux sensor determined the flame radiation. The results indicate that the angle of the swirler vane has significant effects on temperature, combustion efficiency, and NO and CO pollutants' emission. Most importantly, there is an optimum angle for the swirler vane. At the optimum angle, the optimum combination of the contact area and time maximizes the mixing rate of the inlet air and the fuel jet. Consequently, at the optimum angle, the mean temperature, radiation heat flux, and combustion efficiency are higher than at small and large swirl angles and soot, CO and NOx emissions are at their minimum states.
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Research-Article
An Experimental Study of Optimum Angle of Air Swirler Vanes in Liquid Fuel Burners
S. H. Pourhoseini,
S. H. Pourhoseini
Department of Mechanical Engineering,
Faculty of Engineering,
University of Gonabad,
Gonabad 9691644915, Iran
e-mail: hadipoorhoseini@gmail.com
Faculty of Engineering,
University of Gonabad,
Gonabad 9691644915, Iran
e-mail: hadipoorhoseini@gmail.com
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Rasoul Asadi
Rasoul Asadi
Department of Mechanical Engineering,
Faculty of Engineering,
University of Gonabad,
Gonabad 9691644915, Iran
Faculty of Engineering,
University of Gonabad,
Gonabad 9691644915, Iran
Search for other works by this author on:
S. H. Pourhoseini
Department of Mechanical Engineering,
Faculty of Engineering,
University of Gonabad,
Gonabad 9691644915, Iran
e-mail: hadipoorhoseini@gmail.com
Faculty of Engineering,
University of Gonabad,
Gonabad 9691644915, Iran
e-mail: hadipoorhoseini@gmail.com
Rasoul Asadi
Department of Mechanical Engineering,
Faculty of Engineering,
University of Gonabad,
Gonabad 9691644915, Iran
Faculty of Engineering,
University of Gonabad,
Gonabad 9691644915, Iran
1Corresponding author.
Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received March 27, 2016; final manuscript received October 9, 2016; published online November 10, 2016. Editor: Hameed Metghalchi.
J. Energy Resour. Technol. May 2017, 139(3): 032202 (5 pages)
Published Online: November 10, 2016
Article history
Received:
March 27, 2016
Revised:
October 9, 2016
Citation
Pourhoseini, S. H., and Asadi, R. (November 10, 2016). "An Experimental Study of Optimum Angle of Air Swirler Vanes in Liquid Fuel Burners." ASME. J. Energy Resour. Technol. May 2017; 139(3): 032202. https://doi.org/10.1115/1.4035023
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