Research on knocking characteristics of kerosene spark-ignition engine for unmanned aerial vehicle (UAV) by numerical simulation

Jin Li; Lei Zhou; Zhenfeng Zhao; Xiaolin Wang; Fujun Zhang

doi:10.1016/j.tsep.2018.10.014

Research on knocking characteristics of kerosene spark-ignition engine for unmanned aerial vehicle (UAV) by numerical simulation

Jin Li, Lei Zhou^*, Zhenfeng Zhao, Xiaolin Wang, Fujun Zhang

^*Corresponding author for this work

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

The favorable physicochemical properties of kerosene have contributed to its widely application in aviation. However, knocking is more prone to take place in kerosene than in gasoline under the same conditions. This paper presents a study on the knock characteristics of a ROTAX914 engine that is fueled by kerosene. The knocking combustion process was simulated under various engine operating conditions. The effect of engine ignition timing, exhaust gas recirculation (EGR), and mixture concentration on the engine knocking combustion were studied based on a three-dimensional simulation. The results showed that engine knock could be effectively suppressed by delayed ignition timing. With increased EGR rates, knocking intensity was greatly suppressed.

Original language	English
Pages (from-to)	1-10
Number of pages	10
Journal	Thermal Science and Engineering Progress
Volume	9
DOIs	https://doi.org/10.1016/j.tsep.2018.10.014
Publication status	Published - Mar 2019

Keywords

Kerosene
Knocking
Numerical simulation
Spark-ignition engine
Unmanned Aerial Vehicle

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10.1016/j.tsep.2018.10.014

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title = "Research on knocking characteristics of kerosene spark-ignition engine for unmanned aerial vehicle (UAV) by numerical simulation",

abstract = "The favorable physicochemical properties of kerosene have contributed to its widely application in aviation. However, knocking is more prone to take place in kerosene than in gasoline under the same conditions. This paper presents a study on the knock characteristics of a ROTAX914 engine that is fueled by kerosene. The knocking combustion process was simulated under various engine operating conditions. The effect of engine ignition timing, exhaust gas recirculation (EGR), and mixture concentration on the engine knocking combustion were studied based on a three-dimensional simulation. The results showed that engine knock could be effectively suppressed by delayed ignition timing. With increased EGR rates, knocking intensity was greatly suppressed.",

keywords = "Kerosene, Knocking, Numerical simulation, Spark-ignition engine, Unmanned Aerial Vehicle",

author = "Jin Li and Lei Zhou and Zhenfeng Zhao and Xiaolin Wang and Fujun Zhang",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2019",

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AU - Li, Jin

AU - Zhou, Lei

AU - Zhao, Zhenfeng

AU - Wang, Xiaolin

AU - Zhang, Fujun

PY - 2019/3

Y1 - 2019/3

N2 - The favorable physicochemical properties of kerosene have contributed to its widely application in aviation. However, knocking is more prone to take place in kerosene than in gasoline under the same conditions. This paper presents a study on the knock characteristics of a ROTAX914 engine that is fueled by kerosene. The knocking combustion process was simulated under various engine operating conditions. The effect of engine ignition timing, exhaust gas recirculation (EGR), and mixture concentration on the engine knocking combustion were studied based on a three-dimensional simulation. The results showed that engine knock could be effectively suppressed by delayed ignition timing. With increased EGR rates, knocking intensity was greatly suppressed.

AB - The favorable physicochemical properties of kerosene have contributed to its widely application in aviation. However, knocking is more prone to take place in kerosene than in gasoline under the same conditions. This paper presents a study on the knock characteristics of a ROTAX914 engine that is fueled by kerosene. The knocking combustion process was simulated under various engine operating conditions. The effect of engine ignition timing, exhaust gas recirculation (EGR), and mixture concentration on the engine knocking combustion were studied based on a three-dimensional simulation. The results showed that engine knock could be effectively suppressed by delayed ignition timing. With increased EGR rates, knocking intensity was greatly suppressed.

KW - Kerosene

KW - Knocking

KW - Numerical simulation

KW - Spark-ignition engine

KW - Unmanned Aerial Vehicle

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DO - 10.1016/j.tsep.2018.10.014

M3 - Article

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SN - 2451-9049

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SP - 1

EP - 10

JO - Thermal Science and Engineering Progress

JF - Thermal Science and Engineering Progress

ER -

Research on knocking characteristics of kerosene spark-ignition engine for unmanned aerial vehicle (UAV) by numerical simulation

Abstract

Keywords

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