Aging of polyurethane foam insulation in simulated refrigerator walls

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Description

Laboratory data are presented on the thermal conductivity of polyurethane foam insulation in composite test panels that simulate refrigerator walls. The test panels consisted of a steel skin, an ABS plastic liner, and a polyurethane foam core. Foam cores were produced with three different blowing agents (CFC-11, HCFC-141b, and a HCFC-142/22 blend). Periodic thermal measurements have been made on these panels over a three and one half year period in an effort to detect aging processes. Data obtained on foam encased in the panels were compared with measurements on thin foam slices that were removed from similar panels. The data ... continued below

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16 p.

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Wilkes, K. E.; Yarbrough, D. W. & Weaver, F. J. October 1997.

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Description

Laboratory data are presented on the thermal conductivity of polyurethane foam insulation in composite test panels that simulate refrigerator walls. The test panels consisted of a steel skin, an ABS plastic liner, and a polyurethane foam core. Foam cores were produced with three different blowing agents (CFC-11, HCFC-141b, and a HCFC-142/22 blend). Periodic thermal measurements have been made on these panels over a three and one half year period in an effort to detect aging processes. Data obtained on foam encased in the panels were compared with measurements on thin foam slices that were removed from similar panels. The data show that the encapsulation of the foam in the solid boundary materials greatly reduces the aging rate. The plan is presented for a follow-on project that is being conducted on the aging of foams blown with HCFC-141b, HFC-134a, HFC-245fa, and cyclopentane.

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16 p.

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OSTI as DE98000332

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  • International conference on ozone protection technologies, Baltimore, MD (United States), 12-13 Nov 1997

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  • Other: DE98000332
  • Report No.: ORNL/CP--94345
  • Report No.: CONF-971151--
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 634148
  • Archival Resource Key: ark:/67531/metadc689544

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Office of Scientific & Technical Information Technical Reports

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  • October 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Nov. 12, 2015, 6:17 p.m.

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Wilkes, K. E.; Yarbrough, D. W. & Weaver, F. J. Aging of polyurethane foam insulation in simulated refrigerator walls, article, October 1997; Tennessee. (digital.library.unt.edu/ark:/67531/metadc689544/: accessed September 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.