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Thermal Ignition of ADN‐Based Propellants
Author(s) -
Negri Michele,
Wilhelm Marius,
Ciezki Helmut K.
Publication year - 2019
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.201900154
Subject(s) - ignition system , propellant , nuclear engineering , materials science , combustion , autoignition temperature , combustion chamber , automotive engineering , chemistry , aerospace engineering , engineering , organic chemistry
Abstract Ammonium dinitramide (ADN, NH 4 + N(NO 2 ) 2 − ) based monopropellants are extremely promising as hydrazine replacement. Thermal igniters are attractive for ADN thrusters as they allow a more prompt ignition and may be better suited for larger engines (100‐500 N) compared to the currently used preheated catalysts. The results of an experimental campaign conducted on the ignition of two ADN‐based monopropellants (LMP‐103S and FLP‐106) with a torch igniter are presented. Several combustion chamber configurations have been tested to facilitate the ignition. Through the use of porous inlays in the chamber, ignition of both propellants was achieved. It was not possible, however, to achieve sustained combustion under the chosen test conditions.