Research on density variation and control method of high temperature fuel in combustor

WANG Xiangyi; ZHANG Lei; ZHANG Ruoling; JIANG Jin

doi:10.11729/syltlx20190162

Volume 35 Issue 3

Jun. 2021

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Journal of Experiments in Fluid Mechanics > 2021 > 35(3): 83-87. > DOI: 10.11729/syltlx20190162

WANG Xiangyi, ZHANG Lei, ZHANG Ruoling, JIANG Jin. Research on density variation and control method of high temperature fuel in combustor[J]. Journal of Experiments in Fluid Mechanics, 2021, 35(3): 83-87. DOI: 10.11729/syltlx20190162

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Research on density variation and control method of high temperature fuel in combustor

Science and Technology on Scramjet Laboratory of Hypervelocity Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China

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Received Date: December 01, 2019
Revised Date: February 24, 2021

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Abstract

Abstract

The operating characteristics of the high temperature fuel in the active cooling channel and the variation of the fuel density are analyzed. The design methods of the fuel temperature and pressure measurement system are given, and the control scheme of the injection pressure which can adapt to the great change of the fuel density is designed using the balance equations of fuel energy and entropy. In order to determine the influence of the fuel density change on the control scheme, the fuel injection pressure control tests are carried out on the directly connected combustion test platform. Both the fuel measurement and control systems work normally during the test, and the processes of the fuel injection pressure and the density variation agree well with the prediction, which verifies the effectiveness of the high temperature fuel measurement, control method and the fuel density calculation method.
- active cooling,
- combustor,
- high temperature fuel,
- control method

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