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Design and performance of a constant temperature and humidity air-conditioning system driven by ground source heat pumps.

Number: pap. C6-015

Author(s) : YU X., WANG R., ZHAI X.

Summary

A constant temperature and humidity air-conditioning system driven by ground source heat pumps was designed and constructed in an archives building in Shanghai, China. The system consists of two water-to-water heat pumps and 280 boreholes with 80 m in depth. In order to keep the temperature and humidity constant in summer, the heat exchanged of the condensers is divided: one rejected to the soil and other used to heat the air in the AHUs. On the other hand, the operation mode that one heat pump ran in heating mode and the other ran in cooling mode was deployed in winter. According to the experimental results under typical summer weather condition of Shanghai, the average COP of the heat pump was 5.4. The average temperature and relative humidity of the archives house were 22.8°C and 46.6%, respectively. It was found that the operation mode we deployed could reduce the heat rejected to the soil by 23%. Meanwhile, under typical winter weather condition of Shanghai, the average COP of the heat pump in heating mode was 5.2. The average temperature and relative humidity of the archives house were 22.8°C and 47.5%, respectively.

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Pages: 8 p.

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Details

  • Original title: Design and performance of a constant temperature and humidity air-conditioning system driven by ground source heat pumps.
  • Record ID : 30005359
  • Languages: English
  • Source: ACRA2010. Asian conference on refrigeration and air conditioning: Tokyo, Japan, June 7-9, 2010.
  • Publication date: 2010/06/07

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