THERMAL SCIENCE

International Scientific Journal

Sagar Mane Deshmukh

,

Krishnamoorthy Arunagiri

,

Virendra Bhojwani

EFFECT OF MIXTURE VELOCITY FOR GIVEN EQUIVALENCE RATIO ON FLAME DEVELOPMENT IN SWISS ROLL COMBUSTOR

ABSTRACT
Small-scale power generation using heat energy from hydrocarbon fuels is a proven technology. In this study, we analyzed 2-D flame development in meso-scale Swiss roll combustor. A mixture of 60% butane and 40% propane was used (0.25–0.55 L per minute). During all the analyses, equivalence ratio (1.1) was kept constant by adjusting air quantity against fuel quantity. The effect of increase in the mixture velocity on the development of flame shapes/patterns was monitored. We found different patterns of flame, e. g., planar, concave, and conical, with the increase in mixture velocity. Increase in combustion chamber temperature was also noted. No flashback was observed and blowout was observed with very high mixture velocity. Combustion chamber temperatures were found to be increasing with the increase in mixture velocity at the same equivalence ratio. Elongation of the flame was observed because of the increased flow velocity. Heat re-circulation to the reactants enhances flame characteristics.
KEYWORDS
flame, Flame patterns, Combustion space temperature, Meso Scale, Swiss Roll combustor
PAPER SUBMITTED: 2018-06-04
PAPER REVISED: 2019-05-07
PAPER ACCEPTED: 2019-05-12
PUBLISHED ONLINE: 2019-06-08
DOI REFERENCE: https://doi.org/10.2298/TSCI180604263M
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2021, VOLUME 25, ISSUE Issue 1, PAGES [85 - 93]
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Effect of mixture velocity for given equivalence ratio on flame development in Swiss roll combustor

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence