Aging of polyurethane foam insulation in simulated refrigerator panels -- Initial results with third-generation blowing agents

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Description

Laboratory data are presented on the effect of constant-temperature aging on the apparent thermal conductivity of polyurethane foam insulation for refrigerators and freezers. The foam specimens were blown with HCFC-141b and with three of its potential replacements -- HFC-134a, HFC-245fa, and cyclopentane. Specimens were aged at constant temperatures of 90 F, 40 F, and {minus}10 F. Thermal conductivity measurements were made on two types of specimens: full-thickness simulated refrigerator panels containing foam enclosed between solid plastic sheets, and thin slices of core foam cut from similar panels. Results are presented for about 250 days of aging for the core-foam specimens ... continued below

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8 p.

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Wilkes, K. E.; Gabbard, W. A. & Weaver, F. J. November 1998.

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Description

Laboratory data are presented on the effect of constant-temperature aging on the apparent thermal conductivity of polyurethane foam insulation for refrigerators and freezers. The foam specimens were blown with HCFC-141b and with three of its potential replacements -- HFC-134a, HFC-245fa, and cyclopentane. Specimens were aged at constant temperatures of 90 F, 40 F, and {minus}10 F. Thermal conductivity measurements were made on two types of specimens: full-thickness simulated refrigerator panels containing foam enclosed between solid plastic sheets, and thin slices of core foam cut from similar panels. Results are presented for about 250 days of aging for the core-foam specimens and for the first six months of aging for the full-thickness panels.

Physical Description

8 p.

Notes

OSTI as DE99000234

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  • Earth technologies forum, Washington, DC (United States), 26-28 Oct 1998

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  • Other: DE99000234
  • Report No.: ORNL/CP--99527
  • Report No.: CONF-981060--
  • Grant Number: AC05-96OR22464
  • DOI: 10.2172/290940 | External Link
  • Office of Scientific & Technical Information Report Number: 290940
  • Archival Resource Key: ark:/67531/metadc678524

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • November 1998

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Nov. 12, 2015, 6:17 p.m.

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Wilkes, K. E.; Gabbard, W. A. & Weaver, F. J. Aging of polyurethane foam insulation in simulated refrigerator panels -- Initial results with third-generation blowing agents, report, November 1998; Tennessee. (digital.library.unt.edu/ark:/67531/metadc678524/: accessed November 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.