Share

Prototype commercial hot water gas heat pump: design and performance.

Author(s) : ERICKSON D. C., ANAND G., PANCHAL C. B., et al.

Summary

About 1.06 quads of energy are consumed in the U.S. alone in the production of commercial hot water. The primary energy efficiency is about 90% for gas heaters and 32% for electric. In both cases, high-quality, highly exergetic energy is directly converted one-for-one into very low quality energy, yielding very low second law efficiencies. A gas-fired hot water absorption heat pump has been developed, incorporating generator-absorber heat exchange (GAX) to deliver hot water at temperatures above 60 °C. With a gas COP of 1.54, one-third of the gas used for commercial water heating can be conserved. The heat pump also provides "free" cooling with evaporator temperatures as low as -10 °C. The projected payback to the typical commercial customer is about two years.

Details

  • Original title: Prototype commercial hot water gas heat pump: design and performance.
  • Record ID : 2003-1586
  • Languages: English
  • Source: ASHRAE Transactions. 2002 Winter Meeting, Atlantic City, New Jersey. Volume 108, part 1 + CD-ROM.
  • Publication date: 2002/01/12
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles from the proceedings (73)
See the conference proceedings

Indexing