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A Comparative Economic Evaluation of Industrial Heat Pumps

Carl J. Bliem
A Comparative Economic Evaluation of Industrial Heat Pumps by Carl J. Bliem PDF

Author : Carl J. Bliem
Publisher :
Page : 0 pages
File Size : 11,66 MB
Release : 1988
Category : Heat pumps
ISBN :

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This report extends the findings of a study on the cost of delivering process heat with state-of-the-art heat pump systems originally reported in EGG -2408, "A Comparative Economic Evaluation of Industrial Heat Pumps." The original report considered heat pump of a 30 MM Btu/hr size, receiving heat from a waste -heat source at220°F. This report extends the work to a 10 MM Btu/hr size and to waste -heat sources at 180°F and 320°F. Results of the original study are being used to define economic performance which must be met or improved upon by advanced heat pump concepts in order to warrant Department of Energy (DOE) development support. This work will extend the range of applicability to other sizes and waste -heat source temperatures. Sixteen heat pump systems were configured for relative cost comparisons for each waste -heat source and size. These systems consisted of electrically -driven, prime energy -driven, and waste energy -driven reverse Rankine cycle heat pumps of the open, semi open, and closed type. In addition, a waste energy -driven absorption heat pump was analyzed. A conceptual design of each system was created using off -the -shelf components generally available to engineering firms. The performance of each system was assessed, the major components sized, and the installed cost determined. Maintenance costs were estimated. Finally, the relative cost of energy delivered by each system was estimated, and the cost of delivery heat with state-of-the-art heat pumps was determined.