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Two-stage direct expansion solar-assisted heat pump for high temperature applications.

Author(s) : CHATURVEDI S. K., ABDEL-SALAM T. M., SREEDHARAN S. S., et al.

Type of article: Article

Summary

Direct expansion solar-assisted heat pump (DX-SAHP) systems have been proposed as viable alternatives to conventional solar-assisted heat pump systems. This study proposes the use of two-stage DX-SAHP systems for high temperature applications in the range of 60-90°C. The study investigates the capability of these systems of meeting loads with high temperature requirements. The thermal performance of the systems is analyzed for refrigerant R134a, using a one-cover solar collector. Comparisons between the two-stage DX-SAHP and the single-stage DX-SAHP systems are performed and presented. A graphical procedure is illustrated and used for sizing the solar collector area and the heat pump compressor displacement capacity for the two DX-SAHP systems. [Reprinted with permission from Elsevier. Copyright, 2008].

Details

  • Original title: Two-stage direct expansion solar-assisted heat pump for high temperature applications.
  • Record ID : 2009-2156
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 29 - n. 10
  • Publication date: 2009/07
  • DOI: http://dx.doi.org/10.1016/j.applthermaleng.2008.10.010

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