Share

Experimental analysis of the energy performance of a CO2 transcritical vapour compression cycles based on refrigerant vapour injection in suction line.

Number: pap. A-3

Author(s) : SÁNCHEZ D., CABELLO R., PATIÑO J., et al.

Summary

The aim of this work is to show an experimental analysis of a CO2 transcritical cycle when a reduced cost modification is implemented. This modification is only applicable to refrigeration plants with an expansion process stepped at least in two stages and with a refrigerant liquid receiver placed between stages. Taking an experimental facility with IHX as reference, the modification allows us extract saturated vapor from liquid reciver in order to (1) decrease the evaporator inlet vapour quality (reducing at the same time the enthalpy at evaporator inlet), and (2) reduce the total superheating at suction line by means of expanding and injecting the vapour extracted. Three different injection points have been tested: before the IHX, after the IHX and just before the suction chamber of the compressor. Results show a slight improve of the cooling capacity and COP (9.81 % and 7.01 % respectively), and an important reduction of the compressor discharge temperature (15.44°C) for the studied ranges.

Available documents

Format PDF

Pages: 8 p.

Available

  • Public price

    20 €

  • Member price*

    15 €

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Experimental analysis of the energy performance of a CO2 transcritical vapour compression cycles based on refrigerant vapour injection in suction line.
  • Record ID : 30004336
  • Languages: English
  • Source: CYTEF 2012. VI Congreso Ibérico y IV Congreso Iberoamericano de Ciencias y Técnicas del Frío, Madrid, España, 22-24 de febrero, 2012.
  • Publication date: 2012/02/22

Links


See other articles from the proceedings (76)
See the conference proceedings

Indexing