THERMAL SCIENCE

International Scientific Journal

EMISSION CHARACTERISTICS OF AVIATION KEROSENE COMBUSTION IN AERO-ENGINE ANNULAR COMBUSTOR WITH LOW TEMPERATURE PLASMA ASSISTANCE

ABSTRACT
A plasma-assisted combustion (PAC) test platform for annular combustor was developed to validate the feasibility of using plasma-assisted combustion actuation to reduce emission levels. Combustor outlet temperature and emission levels of O2, CO2, H2, CO, and NOx were measured by using a thermocouple and a Testo 350-Pro Flue Gas Analyzer respectively. Combustor combustion efficiency was also calculated. The effects of duty ratio, feedstock airflow rate, and actuator position on combustion efficiency and emission performance have been analyzed. The results show that the target of CO and NOx emissions reduction in plasma-assisted combustion could not be fully achieved for kerosene/air mixture with different combustor excessive air coefficients. It is also shown that PAC with dilution air hole actuation is superior to that of secondary air hole actuation for the combustion of liquid-kerosene fuel. Besides, plasma-assisted combustion effect is more obvious with an increase of duty ratio or feedstock airflow rate. These results are valuable for the future optimization of kerosene-fueled aero-engine when using plasma-assisted combustion devices to improve emission performance of annular combustor.
KEYWORDS
PAPER SUBMITTED: 2017-10-02
PAPER REVISED: 2018-04-06
PAPER ACCEPTED: 2018-04-25
PUBLISHED ONLINE: 2018-05-12
DOI REFERENCE: https://doi.org/10.2298/TSCI171002138L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 2, PAGES [647 - 660]
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© 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