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Evacuated-tube solar collector--performance evaluationReport gives thermal performance test procedures and results for commercially produced, water-filled, 8-tube collectors. Tests include efficiency, time constant for temperature drop after solar flux is cut, change in efficiency as function of sun angle, and test to see if tubes break when filled with hot water.
Document ID
19800000051
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Date Acquired
August 10, 2013
Publication Date
August 1, 1980
Publication Information
Publication: NASA Tech Briefs
Volume: 5
Issue: 1
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
MFS-25339
Accession Number
80B10051
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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