NASA NTRS · 20020091959
Heat Recovery System
Abstract
Ball Metal's design of ducting and controls for series of roof top heat exchangers was inspired by Tech Briefs. Heat exchangers are installed on eight press and coating lines used to decorate sheet metal. The heat recovery system provides an estimated energy savings of more than $250,000 per year.
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1984-01-01. Heat Recovery System. https://ntrs.nasa.gov/citations/20020091959
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