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Start and Idle Combustion Characteristics of Hydrogen Engine for the HALE UAV
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 Title & Authors
Start and Idle Combustion Characteristics of Hydrogen Engine for the HALE UAV
Kim, Yong-Rae; Choi, Young; Lee, Janghee;
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 Abstract
Hydrogen features highest energy density per mass and is expected to be desirable as a fuel of HALE(High altitude long endurance) UAV(Unmanned aerial vehicle). A reciprocating internal combustion engine is known to be a reliable and economic power source for this kind of UAV. Therefore, the combination of hydrogen and engine is worth of doing research. Test bench with 2.4L Spark-Ignited engine was prepared for the experiment in which start and combustion characteristics at idle condition were examined in this study. Stable hydrogen supply system and a universal ECU(Engine control unit) were also utilized for the test engine. Equivalence ratio and spark timings at idle operation were investigated and compared to the data of gasoline engine. The results will be a starting point for full-scale research of hydrogen engine for HALE UAV.
 Keywords
hydrogen;spark ignition engine;idle;start;combustion;
 Language
Korean
 Cited by
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