Electrical Ignition of Liquid Propellant for use in Guns
作者:
JAMES DeSPIRITO,
JOHND. KNAPTON,
期刊:
Combustion Science and Technology
(Taylor Available online 1991)
卷期:
Volume 76,
issue 4-6
页码: 251-263
ISSN:0010-2202
年代: 1991
DOI:10.1080/00102209108951712
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The electrical ignition of a liquid gun propellant was studied in configurations suitable for medium caliber regenerative liquid propellant guns. Two igniter prototypes were developed and tested. Test results from the first igniter prototype showed that it was feasible to ignite the liquid propellant without the formation of an arc. The design of the second igniter reduced the amount of energy required for ignition and was more practical for direct application into a gun fixture. The pressure-time history in both the igniter and a test chamber was used to determine expected igniter performance in a gun fixture. The electric discharge was found to consist of two distinct phases. The first phase consisted of an initial region, dominated by ohmic heating, followed by a second region that was most likely dominated by electrolysis effects. The electrical characteristics of the initial region were predicted by a simple LRC circuit model that was based on the ohmic heating of the liquid propellant. The second phase was the arc portion of the discharge, which was not normally present in tests with the first igniter.
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