|Table of Contents|

Analysis on thermodynamic cycle of scramjet mode for RBCC engine(PDF)

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

Issue:
2022年06期
Page:
17-25
Research Field:
目次
Publishing date:

Info

Title:
Analysis on thermodynamic cycle of scramjet mode for RBCC engine
Author(s):
NAN Xiangjun1;  LI Bin2;  HE Guoqiang3; ZHANG Mengzheng1
(1.Xian Aerospace Propulsion Institute, Xian 710100, China 2.Academy of Aerospace Propulsion Technology, Xian 710100, China 3.Northwestern Polytechnical University, Xian 710072, China)
Keywords:
RBCC engine scramjet mode thermodynamic cycle exergy analysis
PACS:
V231
DOI:
-
Abstract:
In order to study the real working condition of RBCC engine, based on the ground test data, an one dimensional analysis model was established to calculate the performance of engine scramjet mode at different residual air coefficient of 4 Ma and 6 Ma conditions.Compared with the test results, the distribution of flow parameters along the engine was obtained.The thermodynamic cycle of engine was conducted by using the calculation results, and the influence of residual gas coefficient on the cycle efficiency and propulsion efficiency was analyzed.The concept of exergy generation rate was put forward, and the effect of residual gas coefficient on exergy generation rate and loss paths of exergy were studied.Research shows that the one dimensional performance analysis model can calculate the engine thrust performance well, and the error is less than 10.The real thermal cycle of the engine is not strict isobaric heat release, and its exergy generation rate is between 0.5-0.7.Improving the exergy generation rate and reducing the exergy of exhaust are the main directions for optimizing the engine performance.

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Last Update: 1900-01-01