An advance in transfer line chilldown heat transfer of cryogenic propellants in microgravity using microfilm coating for enabling deep space exploration

Abstract The extension of human space exploration from a low earth orbit to a high earth orbit, then to Moon, Mars, and possibly asteroids is NASA’s biggest challenge for the new millennium. Integral to this mission is the effective, sufficient, and reliable supply of cryogenic propellant fluids. Th...

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Autores principales:	J. N. Chung, Jun Dong, Hao Wang, S. R. Darr, J. W. Hartwig
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Biotechnology TP248.13-248.65 Physiology QP1-981
Acceso en línea:	https://doaj.org/article/3fa60998d5e54f39a51b703f3d3c8fb0
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spelling	oai:doaj.org-article:3fa60998d5e54f39a51b703f3d3c8fb02021-12-02T17:47:14ZAn advance in transfer line chilldown heat transfer of cryogenic propellants in microgravity using microfilm coating for enabling deep space exploration10.1038/s41526-021-00149-52373-8065https://doaj.org/article/3fa60998d5e54f39a51b703f3d3c8fb02021-06-01T00:00:00Zhttps://doi.org/10.1038/s41526-021-00149-5https://doaj.org/toc/2373-8065Abstract The extension of human space exploration from a low earth orbit to a high earth orbit, then to Moon, Mars, and possibly asteroids is NASA’s biggest challenge for the new millennium. Integral to this mission is the effective, sufficient, and reliable supply of cryogenic propellant fluids. Therefore, highly energy-efficient thermal-fluid management breakthrough concepts to conserve and minimize the cryogen consumption have become the focus of research and development, especially for the deep space mission to mars. Here we introduce such a concept and demonstrate its feasibility in parabolic flights under a simulated space microgravity condition. We show that by coating the inner surface of a cryogenic propellant transfer pipe with low-thermal conductivity microfilms, the quenching efficiency can be increased up to 176% over that of the traditional bare-surface pipe for the thermal management process of chilling down the transfer pipe. To put this into proper perspective, the much higher efficiency translates into a 65% savings in propellant consumption.J. N. ChungJun DongHao WangS. R. DarrJ. W. HartwigNature PortfolioarticleBiotechnologyTP248.13-248.65PhysiologyQP1-981ENnpj Microgravity, Vol 7, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biotechnology TP248.13-248.65 Physiology QP1-981
spellingShingle	Biotechnology TP248.13-248.65 Physiology QP1-981 J. N. Chung Jun Dong Hao Wang S. R. Darr J. W. Hartwig An advance in transfer line chilldown heat transfer of cryogenic propellants in microgravity using microfilm coating for enabling deep space exploration
description	Abstract The extension of human space exploration from a low earth orbit to a high earth orbit, then to Moon, Mars, and possibly asteroids is NASA’s biggest challenge for the new millennium. Integral to this mission is the effective, sufficient, and reliable supply of cryogenic propellant fluids. Therefore, highly energy-efficient thermal-fluid management breakthrough concepts to conserve and minimize the cryogen consumption have become the focus of research and development, especially for the deep space mission to mars. Here we introduce such a concept and demonstrate its feasibility in parabolic flights under a simulated space microgravity condition. We show that by coating the inner surface of a cryogenic propellant transfer pipe with low-thermal conductivity microfilms, the quenching efficiency can be increased up to 176% over that of the traditional bare-surface pipe for the thermal management process of chilling down the transfer pipe. To put this into proper perspective, the much higher efficiency translates into a 65% savings in propellant consumption.
format	article
author	J. N. Chung Jun Dong Hao Wang S. R. Darr J. W. Hartwig
author_facet	J. N. Chung Jun Dong Hao Wang S. R. Darr J. W. Hartwig
author_sort	J. N. Chung
title	An advance in transfer line chilldown heat transfer of cryogenic propellants in microgravity using microfilm coating for enabling deep space exploration
title_short	An advance in transfer line chilldown heat transfer of cryogenic propellants in microgravity using microfilm coating for enabling deep space exploration
title_full	An advance in transfer line chilldown heat transfer of cryogenic propellants in microgravity using microfilm coating for enabling deep space exploration
title_fullStr	An advance in transfer line chilldown heat transfer of cryogenic propellants in microgravity using microfilm coating for enabling deep space exploration
title_full_unstemmed	An advance in transfer line chilldown heat transfer of cryogenic propellants in microgravity using microfilm coating for enabling deep space exploration
title_sort	advance in transfer line chilldown heat transfer of cryogenic propellants in microgravity using microfilm coating for enabling deep space exploration
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/3fa60998d5e54f39a51b703f3d3c8fb0
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An advance in transfer line chilldown heat transfer of cryogenic propellants in microgravity using microfilm coating for enabling deep space exploration

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