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Life expectancy of household appliances using vacuum insulation panels.

Author(s) : REUTER R., RENZ R., SEXTL G.

Summary

Silica vacuum insulation panels placed strategically in the polyurethane foam bonding inner to outer casings of household refrigerators or freezers can save 18 to 30% of the energy consumption. Tests have now been conducted on the effective life of such panels. When manufactured, the panels are evacuated down to a pressure of 100 pascals. In an environment of 23 deg C and 85% relative humidity, gradual penetration of the barrier film occurs. The pressure rise over 15 years is shown to be about 2 kilopascals at which thermal conductivity could increase from an initial 6 to a final 8 milliwatts/m.K. Even at the maximum predicted the cabinet would still be more efficient than one insulated with polyurethane foam alone. D.W.H.

Details

  • Original title: Life expectancy of household appliances using vacuum insulation panels.
  • Record ID : 1994-3454
  • Languages: English
  • Subject: Environment
  • Publication date: 1993/10/20
  • Source: Source: Proc. 1993 int. CFC Halon Altern. Conf., Washington
    10 p.; 7 fig.
  • Document available for consultation in the library of the IIR headquarters only.

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