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Results of an in-situ measurement campaign on a direct expansion geothermal heat pump with vertical drillings.

Number: pap. 84

Author(s) : VOS D., JESPERS L., VANHOUDT D., et al.

Summary

Heat pumps are increasingly applied in the renewable energy landscape. However, there is a large variation on the performance of heat pumps. This paper discusses the performance of a direct expansion geothermal heat pump with vertical drillings, a type of heat pump that is rarely implemented up till now. The performance of the heat pump is evaluated using measurement results spanning over an entire year. The heat pump was used for space heating and domestic hot water supply in a typical residential building in Flanders, the northern part of Belgium. The heat pump showed good performance with a coefficient of performance for space heating and domestic hot water supply of respectively 5.11 and 3.06. The high COP of the direct expansion heat pump with vertical drillings is due to the absence of the additional water heat exchange step inherent with a water source system and the presence of natural circulation in the underground.

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Pages: 8 p.

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Details

  • Original title: Results of an in-situ measurement campaign on a direct expansion geothermal heat pump with vertical drillings.
  • Record ID : 30008595
  • Languages: English
  • Source: Clima 2013. 11th REHVA World Congress and 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings.
  • Publication date: 2013/06/16

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