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Energy saving performance of distributed heating and cooling system for a laboratory building.

Author(s) : ENDO N., MAEDA T., HASEGAWA Y., et al.

Summary

An advanced distributed heating and cooling system utilizing small-scale high-performance heat pumps was designed to replace the central heating and cooling system for the AIST laboratory buildings, which have a total floor area of 36 100 m2, of which 20 100 m2 is occupied by laboratories. In the old system, the total primary energy required for hot water was 44 TJ and it was 12 TJ for chilled water, and 39 TJ of primary energy for heating and cooling purpose electricity was used in FY 2001. The new system is composed of small-sized high-performance heat pumps, with an average COP of 3.1. The total energy consumption of the new system is estimated to be 61% of that of the old system, with a total energy saving of 37 TJ for one year. The total operating cost is estimated to be 63%, and annual savings of 44.7 million yen were achieved. The total CO2 emissions were estimated to be 53%, a reduction of 2 400 tons of CO2 per year. The improvement of the system is realized mainly by the high-performance small-scale heat pumps and the high-performance total system design that takes laboratory usage into consideration.

Details

  • Original title: Energy saving performance of distributed heating and cooling system for a laboratory building.
  • Record ID : 2006-3199
  • Languages: English
  • Subject: Environment
  • Source: 8th IEA Heat Pump Conference 2005: global advances in heat pump technology, applications, and markets. Conference proceedings [CD-ROM].
  • Publication date: 2005/05/02

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