|Table of Contents|

Influence of LOX temperature on LOX/LH2 rocket engine performance(PDF)

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

Issue:
2014年02期
Page:
54-58
Research Field:
研究与设计
Publishing date:

Info

Title:
Influence of LOX temperature on LOX/LH2 rocket engine performance
Author(s):
JIANG Dong-ling;  YANG Ying
Beijing Aerospace Propulsion Institute, Beijing 100076, China
Keywords:
LOX/LH2 rocket engine;  LOX temperature;  interference factor;  nonlinear calculation method;  small deviation calculation method
PACS:
V434-34
DOI:
-
Abstract:
The impacting mode and correction method of LOX temperature at its inlet on engine performance are studied in combination with the phenomena that the LOX temperature at its inlet rose and the thrust dropped down during the second operating period of a LOX/LH2 rocket engine in its actual flying test. According to the test result of a super-cooling liquid oxygen engine, the influence of two impacting modes of LOX temperature on engine performance was corrected, by which the deviation of the LOX/LH2 rocket engine thrust between second and first operating periods was decreased by about 24%, and the deviation of combustor pressure between flying test value and given value before flying was decreased by about 8%.

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