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Integrated Cryogenic Experiment (ICE) microsphere investigationThe main objective is to determine the performance of microsphere insulation in a 0-g environment and compare its performance to reference insulations such as multilayer insulation. The Lockheed Helium Extended-Life Dewar (HELD) is used to provide superfluid-helium cold sink for the experiment. The use of HELD allows the low-g dynamic properties of Passive Orbital Disconnect Struts (PODS) to be characterized and provides a flight demonstration of the PODS system. The thermal performance of microspheres in 1 and 0 g was predicted, a flight experiment was designed to determine microsphere thermal performance, and the interface was also designed between the experimental package and the shuttle through HELD and the Hitchhiker-M carrier. A single test cell was designed and fabricated. The cell was filled with uncoated glass microspheres and tested with a liquid-nitrogen cold sink. The data were found to agree with predictions of microsphere performance in 1 g.
Document ID
19910010010
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Spradley, I. (Lockheed Missiles and Space Co. Palo Alto, CA, United States)
Read, D. (Lockheed Missiles and Space Co. Palo Alto, CA, United States)
Date Acquired
September 6, 2013
Publication Date
September 1, 1989
Subject Category
Engineering (General)
Report/Patent Number
NAS 1.26:177538
NASA-CR-177538
LMSC-F279204
Accession Number
91N19323
Funding Number(s)
PROJECT: RTOP 244-10-00
CONTRACT_GRANT: NAS2-12897
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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