Switch To PU From XPS Improves Energy Efficiency

Posted in Green by mmathews on 03/17 at 11:52 PM

Regulatory and market pressures force walk-in cooler and freezer manufacturers to constantly seek ways to improve the energy efficiency of their products.

As reported in the PPI Quarterly Newsletter:

Regulatory and market pressures force walk-in cooler and freezer manufacturers to constantly seek ways to improve the energy efficiency of their products.

U.S. Cooler used to offer only walk-in coolers and freezers constructed primarily of extruded polystyrene (XPS). They bond blocks of XPS between metal skins to form the insulating walls, ceilings and floors of their coolers and freezers.

Now, the company has added a line of walk-in products made with polyurethane as the insulating core. They use an economical OMS ECOPlus 100 high-pressure metering machine, equipped with an ECOMIX Y2K 16/24 L-shaped mix head, to inject rigid polyurethane foam between metal substrates on a discontinuous press.

U.S. Cooler continues to use XPS in the majority of its products because they believe it is a better insulating material for their application, but the new polyurethane process does have advantages.

UPDATE (4/6/2011): By request of PPI, this post is a modification from what was originally posted.

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