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Optimal performance of compression resorption heat pump systems.

Author(s) : BOR D. M. van de, INFANTE FERREIRA C. A.

Summary

For companies in the process industry a short payback period for their energy systems is most important. When implementing compression-resorption heat pumps the operating conditions should be chosen such that the energetic performance is maximal while investment is minimal. This should result in a small compressor power, one of the main components of a compression-resorption heat pump. The performance of these heat pumps has been investigated numerically for a number of specific industrial cases by using an equilibrium model for an ammonia-water compressionresorption heat pump. The average concentration of ammonia was varied while the temperature driving forces between process and heat pump at heat exchanger in- and outlets is kept constant. The results of the simulation show that optimal performance is obtained when the ammonia concentration is chosen such that vapor quality is exactly 100% at the inlet of the resorber. Compressor power is then lowest, so it is expected that operating cost as well as the investment cost are reduced, thereby reducing the payback period as well as making more efficient use of resources. It is expected that operation under such conditions will increase the acceptance of compression-resorption heat pumps.

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Pages: 761-770

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Details

  • Original title: Optimal performance of compression resorption heat pump systems.
  • Record ID : 30001278
  • Languages: English
  • Source: Sources/sinks Alternative to the Outside Air for Heat Pump and Air-conditioning Techniques (Alternative Sources - AS), Padua, Italy, April 5-7, 2011. / International Sorption Heat Pump Conference (ISHPC11), Padua, Italy, April 6-8, 2011.
  • Publication date: 2011/04/06

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