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Thermal-to-work and thermal-to-thermal recovery compression heat pumping.

Number: pap. n. 162

Author(s) : STAICOVICI M. D. N.

Summary

Recent papers introduce the thermal-to-work and thermal-to-thermal recovery compression methods ( TWRC and TTRC , respectively), in order to increase the effectiveness of a mechanical vapour compression (mvc) refrigeration process. This work continues the introduced methods research, studying theirs applications in the mvc heat pumping. The single- and two-stage refrigeration and heat pump applications are modeled. In case of TTRC , the coabsorbent technology is considered. The methods model results show that mvc single-stage refrigeration COPc is by 6 to 12 % better than a standard configuration cycle (without TWRC and TTRC , but used currently), for condenser temperature Tc = 35°C and evaporator temperature Te = 5 to -25°C, and in case of the two-stage refrigeration the COPc is by 7 to 18 percent better than a two-stage cycle, but by 50 to 80 percent better than a standard configuration cycle, for Tc = 35 to 30°C and Te = - 30 to -60°C. The methods model results, obtained for singleand double-stage combined cooling and heating, show that the heating COPh increases by ~ 2 to 5% and up to 30%, respectively, as compared to the standard configuration cycle, for Tc = 51 to 91°C and Te = -10 to 10°C.

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Pages: 8 p.

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Details

  • Original title: Thermal-to-work and thermal-to-thermal recovery compression heat pumping.
  • Record ID : 30004287
  • Languages: English
  • Source: 10th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2012). Proceedings. Delft, The Netherlands, June 25-27, 2012.
  • Publication date: 2012/06/25

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