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Improvement of prototype of CO2 combined air conditioning and tap water heating plant.

Author(s) : ADRIANSYAH W., PURWANTO T. S., SUWONO A.

Summary

Research and development of a combined carbon dioxide (CO2) air conditioning and tap water heating plant has been performed at the Thermodynamics Laboratory, Institute Technology of Bandung. This paper discusses the modification of the plant with the objective to increase the plant's cooling COP and to make the plant more compact. New heat exchangers which higher effectiveness were redesigned to increase the cooling COP and to reduce overall plant dimension. The experimental results show that the new heat exchangers have improved the cooling COP of the plant. The maximum discharge pressure during experiments was 85 bars and the suction pressure was 34 bars at chilled water mass flow of 0.23 kg/s. On 85-bar discharge pressure, the cooling COP based on the evaporator load and the electrical consumption of the compressor was 2.52, compared to cooling COP 2.20 before modification. On water heating side, 210 litres tap water temperature of 60°C was reached within two hours.

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Pages: 2006-2

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Details

  • Original title: Improvement of prototype of CO2 combined air conditioning and tap water heating plant.
  • Record ID : 2007-1695
  • Languages: English
  • Subject: Technology
  • Source: 7th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2006). Proceedings
  • Publication date: 2006/05/29

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