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Application of ground source heat pumps for air conditioning of greenhouses.

Author(s) : FUJII H.

Type of article: Article

Summary

High energy costs for heating greenhouses have been a serious problem in Japan due to increased oil prices. Field tests have been carried out in a greenhouse since 2007 in order to evaluate the applicability of ground source heat pump (GSHP) systems to greenhouses. The system consists of two heat pumps of 10 kW heating/cooling capacity and four vertical ground heat exchangers of total 240 m. COPs of heating and cooling operations ranged between 4-6 and 4-5 respectively, demonstrating that the systems could significantly reduce CO2 emissions and energy costs.

Details

  • Original title: Application of ground source heat pumps for air conditioning of greenhouses.
  • Record ID : 2009-2168
  • Languages: English
  • Source: IEA HPC Newsl. - vol. 27 - n. 1
  • Publication date: 2009

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