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Development and evaluation of a reversible CO2 residential air conditioning system compared to a state-of-the-art R410A unit.

Author(s) : JAKOBSEN A., SKAUGEN G., SKIPLE T. V., et al.

Summary

A reversible CO2 prototype RAC split unit system has been designed, built and installed in two calorimetric test chambers. The unit is based on the Lorentzen cycle with a receiver and a suction line heat exchanger. Both the indoor and the outdoor heat exchangers have tube-in-fin design. The hermetic compressor has two compression stages and is inverter driven. In the heat pump mode the CO2 prototype unit can either operate as a conventional one-stage circuit or as a two-stage system. In the air-condition mode, there is an option for cooling of the compressor first stage discharge gas. Experimental tests are under preparation. Realistic simulations have been carried out with the advanced in-house simulation program CSIM using input data for all components of the prototype. A state of the art inverter driven R410A split unit has been tested experimentally as a baseline unit. Obtained results have been compared to simulation results for the CO2 prototype.

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Pages: 2004-2

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Details

  • Original title: Development and evaluation of a reversible CO2 residential air conditioning system compared to a state-of-the-art R410A unit.
  • Record ID : 2005-2784
  • Languages: English
  • Source: Natural Working Fluids 2004: 6th IIR-Gustav Lorentzen Conference
  • Publication date: 2004/08/01

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