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Influence of gunpowder start system on starting performance of liquid rocket engines(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2012年04期
Page:
32-37
Research Field:
研究与设计
Publishing date:

Info

Title:
Influence of gunpowder start system on starting performance of liquid rocket engines
Author(s):
SUN Hai-yu 1;  LIU Zhi-rang 2
1. Xi’an Aerospace Propulsion Institute, Xi’an 710100, China；
Keywords:
liquid rocket enginestart systemsolid start cartridgegas pipelinenumerical simulation
PACS:
V430-34
DOI:
-
Abstract:
Aiming at the pumping pressure open cycle liquid rocket engine which is started by solid start cartridge (SSC), the performance of the start system is studied in this paper. The simulated model of SSC in the start system and the numerical model of the powder gas pipeline were established to simulate the process of gunpowder start. The influence of SSC and gas pipeline parameters on start performance of engine is analyzed to ensure the main influence parameters and regular patterns. It is found that the powder quantity of SSC and the diameter of the first throat in the powder gas pipeline are the most effective factors to the engine's start characteristic. The diameter of the powder gas pipeline's second throat and the diameter of the powder gas pipeline's outlet are the least ones in the case of that the powder gas pipeline's flow field keeps rated condition. The simulated result of the start system was proven in engine hot tests.

References:

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