Modeling Free Convection Flow of Liquid Hydrogen within a Cylindrical Heat Exchanger Cooled to 14 K

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A liquid hydrogen in a absorber for muon cooling requires that up to 300 W be removed from 20 liters of liquid hydrogen. The wall of the container is a heat exchanger between the hydrogen and 14 K helium gas in channels within the wall. The warm liquid hydrogen is circulated down the cylindrical walls of the absorber by free convection. The flow of the hydrogen is studied using FEA methods for two cases and the heat transfer coefficient to the wall is calculated. The first case is when the wall is bare. The second case is when there is ... continued below

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Green, Michael A.; U., Oxford; Yang, S.W.; Green, M.A. & Lau, W. May 8, 2004.

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A liquid hydrogen in a absorber for muon cooling requires that up to 300 W be removed from 20 liters of liquid hydrogen. The wall of the container is a heat exchanger between the hydrogen and 14 K helium gas in channels within the wall. The warm liquid hydrogen is circulated down the cylindrical walls of the absorber by free convection. The flow of the hydrogen is studied using FEA methods for two cases and the heat transfer coefficient to the wall is calculated. The first case is when the wall is bare. The second case is when there is a duct some distance inside the cooled wall.

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  • 20th International Cryogenic Engineering Conference, Beijing, China, May 9-13, 2004

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  • Report No.: LBNL--57379
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 925699
  • Archival Resource Key: ark:/67531/metadc893046

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Office of Scientific & Technical Information Technical Reports

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  • May 8, 2004

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Oct. 3, 2016, 4:21 p.m.

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Green, Michael A.; U., Oxford; Yang, S.W.; Green, M.A. & Lau, W. Modeling Free Convection Flow of Liquid Hydrogen within a Cylindrical Heat Exchanger Cooled to 14 K, article, May 8, 2004; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc893046/: accessed October 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.