Thinking Beyond Plate & Frame Heat Exchangers for Waterside Economizing

By Chad Edmondson

  “What type of heat exchanger is best for my waterside economizer application?”

 It’s a question we get asked a lot.  With the increased requirement for either an air or waterside economizing in ASHRAE 90.1 – 2010, we expect to get asked even more – especially since the DOE expects states to adopt the revised standard into their non-residential building codes by as early as next month.

 U-Factor Versus Real-World-Factor

Conventional engineering logic has always leaned toward plate and frame technology for waterside

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