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Development of dual compressor system using compressor combined with expander for CO2 heat pump hot water heating system.

Number: pap. 1291

Author(s) : YU S., OGATA T., WADA M., et al.

Summary

In order to prevent the global warming, reduction of CO2 emissions, including the emissions from the domestic sector, on a global scale is required. In regions with cold climates, such as Europe, hot-water room heating, powered by fossil fuel-burning boilers, composes the majority of energy consumption for heating. One of the CO2 heat pump hot-water heating equipment’s features is that it is capable of delivering high-temperature hot water equivalent to that provided by the boilers. By focusing on this feature, the authors have aimed to construct high efficiency CO2 heat pump that can replace boilers to reduce CO2 emissions through the reduction of primary energy consumption. Thus, they constructed a compressor combined with an expander and the hybrid density proportional control technology to develop high-efficiency heat pump system control, and enabled 15% improvement of an annual coefficient of performance (COP).

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Pages: 9 p.

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Details

  • Original title: Development of dual compressor system using compressor combined with expander for CO2 heat pump hot water heating system.
  • Record ID : 30007076
  • Languages: English
  • Source: 2012 Purdue Conferences. 21st International Compressor Engineering Conference at Purdue.
  • Publication date: 2012/07/16

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