Study on the heat transfer characteristics of regenerative cooling for LOX/LCH4 variable thrust rocket engine

It is a challenging task to investigate the regenerative cooling of the variable thrust LOX/LCH4 expander cycle rocket engine. The decreasing methane mass flow rate leads to the two-phase instability in the regenerative cooling channels (RCC) for low engine thrust. In this study, the geometric dimen...

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Autores principales:	Jie Song, Tao Liang, Qinglian Li, Peng Cheng, Dongdong Zhang, Peng Cui, Jun Sun
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Variable thrust rocket engine Regenerative cooling Subcritical methane Phase-change heat transfer Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/4ca15b9d451e411e98e40be35f474167
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id	oai:doaj.org-article:4ca15b9d451e411e98e40be35f474167
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spelling	oai:doaj.org-article:4ca15b9d451e411e98e40be35f4741672021-12-02T05:01:34ZStudy on the heat transfer characteristics of regenerative cooling for LOX/LCH4 variable thrust rocket engine2214-157X10.1016/j.csite.2021.101664https://doaj.org/article/4ca15b9d451e411e98e40be35f4741672021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2214157X21008273https://doaj.org/toc/2214-157XIt is a challenging task to investigate the regenerative cooling of the variable thrust LOX/LCH4 expander cycle rocket engine. The decreasing methane mass flow rate leads to the two-phase instability in the regenerative cooling channels (RCC) for low engine thrust. In this study, the geometric dimension of RCC with phase-change is developed. Heat transfer cases are studied based on the experimental correlation, which are investigated the heat transfer characteristics of subcritical methane in the RCC. Furthermore, the effect of variable engine thrust on RCC's heat transfer characteristics is analyzed particularly for low engine thrust. The results demonstrate that the gas-side wall temperature (Twg) was stratified due to the different phase-change heat transfer mechanisms. Twg appeared as a local peak value at the throat, which reached a maximum value in the two-phase region. The maximum value of Twg increased from 858.5 K to 863 K with the decrease of the engine thrust in 20–60% RPL. The RCC's temperature rise of 20% RPL was 1.25 times that of 60% RPL (231 K), whereas the pressure drop was 0.72 that of 60% RPL (0.73 MPa). Moreover, the case calculation results could benefit the scheme design and heat transfer analysis of the RCC.Jie SongTao LiangQinglian LiPeng ChengDongdong ZhangPeng CuiJun SunElsevierarticleVariable thrust rocket engineRegenerative coolingSubcritical methanePhase-change heat transferEngineering (General). Civil engineering (General)TA1-2040ENCase Studies in Thermal Engineering, Vol 28, Iss , Pp 101664- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Variable thrust rocket engine Regenerative cooling Subcritical methane Phase-change heat transfer Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Variable thrust rocket engine Regenerative cooling Subcritical methane Phase-change heat transfer Engineering (General). Civil engineering (General) TA1-2040 Jie Song Tao Liang Qinglian Li Peng Cheng Dongdong Zhang Peng Cui Jun Sun Study on the heat transfer characteristics of regenerative cooling for LOX/LCH4 variable thrust rocket engine
description	It is a challenging task to investigate the regenerative cooling of the variable thrust LOX/LCH4 expander cycle rocket engine. The decreasing methane mass flow rate leads to the two-phase instability in the regenerative cooling channels (RCC) for low engine thrust. In this study, the geometric dimension of RCC with phase-change is developed. Heat transfer cases are studied based on the experimental correlation, which are investigated the heat transfer characteristics of subcritical methane in the RCC. Furthermore, the effect of variable engine thrust on RCC's heat transfer characteristics is analyzed particularly for low engine thrust. The results demonstrate that the gas-side wall temperature (Twg) was stratified due to the different phase-change heat transfer mechanisms. Twg appeared as a local peak value at the throat, which reached a maximum value in the two-phase region. The maximum value of Twg increased from 858.5 K to 863 K with the decrease of the engine thrust in 20–60% RPL. The RCC's temperature rise of 20% RPL was 1.25 times that of 60% RPL (231 K), whereas the pressure drop was 0.72 that of 60% RPL (0.73 MPa). Moreover, the case calculation results could benefit the scheme design and heat transfer analysis of the RCC.
format	article
author	Jie Song Tao Liang Qinglian Li Peng Cheng Dongdong Zhang Peng Cui Jun Sun
author_facet	Jie Song Tao Liang Qinglian Li Peng Cheng Dongdong Zhang Peng Cui Jun Sun
author_sort	Jie Song
title	Study on the heat transfer characteristics of regenerative cooling for LOX/LCH4 variable thrust rocket engine
title_short	Study on the heat transfer characteristics of regenerative cooling for LOX/LCH4 variable thrust rocket engine
title_full	Study on the heat transfer characteristics of regenerative cooling for LOX/LCH4 variable thrust rocket engine
title_fullStr	Study on the heat transfer characteristics of regenerative cooling for LOX/LCH4 variable thrust rocket engine
title_full_unstemmed	Study on the heat transfer characteristics of regenerative cooling for LOX/LCH4 variable thrust rocket engine
title_sort	study on the heat transfer characteristics of regenerative cooling for lox/lch4 variable thrust rocket engine
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/4ca15b9d451e411e98e40be35f474167
work_keys_str_mv	AT jiesong studyontheheattransfercharacteristicsofregenerativecoolingforloxlch4variablethrustrocketengine AT taoliang studyontheheattransfercharacteristicsofregenerativecoolingforloxlch4variablethrustrocketengine AT qinglianli studyontheheattransfercharacteristicsofregenerativecoolingforloxlch4variablethrustrocketengine AT pengcheng studyontheheattransfercharacteristicsofregenerativecoolingforloxlch4variablethrustrocketengine AT dongdongzhang studyontheheattransfercharacteristicsofregenerativecoolingforloxlch4variablethrustrocketengine AT pengcui studyontheheattransfercharacteristicsofregenerativecoolingforloxlch4variablethrustrocketengine AT junsun studyontheheattransfercharacteristicsofregenerativecoolingforloxlch4variablethrustrocketengine
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Study on the heat transfer characteristics of regenerative cooling for LOX/LCH4 variable thrust rocket engine

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