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Investigation on “heat pump”starting fault of liquid rocket engine(PDF)

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

Issue:
2014年03期
Page:
33-37
Research Field:
研究与设计
Publishing date:

Info

Title:
Investigation on “heat pump”starting fault of liquid rocket engine
Author(s):
WANG Hai-shan;  CHEN Hui;  WAN Jin-chuan;  WANG Wei-guang
Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
Keywords:
-
PACS:
V434+.21-34
DOI:
-
Abstract:
The“heat pump”starting fault happens on the repeatedly-started pump pressure liquid rocket engine. The main reason is that the propellant is gasified by the high temperature of the pump when the engine starts again, which makes the propellant booster pump work abnormally. A solution is proposed for solving the fault. That is, the emptying system and drain-off system are added in engine system to reduce the temperature of the pump and air containing ratio in pump cavity, an adiabatic structure between the turbine and pump is installed to reduce heat transfer, and the restarting time sequence of the engine is adjusted accordingly. The“heat pump”starting fault of the certain repeatedly-started liquid rocket engine was eliminated satisfactorily in combination with the verification testing in high altitude. The correctness of the method was validated by comparison of the different test data and the high altitude environment numerical simulation results. The method

References:

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Memo

Memo:
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Last Update: 1900-01-01