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News

Bayer Corporation Paper Examines Performance of Alternative Blowing Agents in Residential Water Heaters

Bayer MaterialScience AG : 01 October, 2001  (Company News)
The water heater industry is facing the challenge of replacing HCFC-141b, the predominant blowing agent for use in rigid polyurethane foam insulation, with a non-ozone depleting (ODP) material.
Many new blowing agents are currently being tested for this purpose, including hydrofluorocarbons, such as HFC-134a and HFC-245fa, and hydrocarbons such as cyclopentane.

Kerry Ingold, Technical Project Leader, Insulation, for Bayer Corporation's Polyurethanes Division, presented a paper examining the leading candidates to replace HCFC-141b as insulation material in water heaters at the Alliance for the Polyurethanes Industry's Polyurethanes Conference 2001 here. Co-authors of the paper, 'An Assessment of the Performance of Rigid Polyurethane Foam Insulation for Use in Residential Water Heaters Produced with SNAP-Approved Non-ODP Blowing Agents,' are: Raymond A. Yourd, Technical Manager, and V. Michael Mautino, Research and Development Specialist, for Bayer's Polyurethanes Division.

The researchers produced laboratory and end-use data for the major SNAP-approved blowing agents available for use in rigid polyurethane foam insulation. 'This data includes a comparison of physical testing results from laboratory panels and data from energy efficiency testing and Bayer's stand-by loss testing (SBLT) of water heaters produced with these candidates,' said Ingold.
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