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Research and Development History of Glass Bubbles Bulk-Fill Thermal Insulation Systems for Large-Scale Cryogenic Liquid Hydrogen Storage TanksBased on the published literature record, this document provides an overview of the research and development of glass bubbles bulk-fill thermal insulation systems for cryogenic equipment in general and, in particular, for large-scale cryogenic liquid hydrogen (LH2) storage spheres. Glass bubbles (also known as hollow glass microspheres) are used in place of perlite powder which began use in double-wall cryogenic tanks in the 1930s. Included in this overview is a historical summary, a development timeline, a selected publications list, and the key technical points from those publications.
Document ID
20180006604
Document Type
Other
Authors
Fesmire, J.
(NASA Kennedy Space Center Cocoa Beach, FL, United States)
Date Acquired
October 18, 2018
Publication Date
September 1, 2017
Subject Category
Propellants And Fuels
Report/Patent Number
KSC-E-DAA-TN57204
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
perlite powder
liquid hydrogen spheres
bulk-fill
low heat leak
glass bubbles
vacuum insulation

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