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Heat pumps: combined use of solar energy and low-temperature geothermal technology.

Pompes à chaleur : utilisation combinée de l'énergie solaire et de la géothermie basse température.

Author(s) : TRILLAT-BERDAL V., SOUYRI B., ACHARD G.

Type of article: Article

Summary

This article presents a study on a system that simultaneously integrates thermal solar energy and low-temperature geothermal energy and that also addresses the heating, cooling and hot water supply needs in buildings. The system was recently installed in a 180 m2 house in Savoy. The experimental results of the first operating season (November 2004-August 2005) made it possible to analyse the operating of the system and to highlight ground thermal discharge during solar-thermal-energy overproduction periods. Despite auxiliary power consumption that draws approximately 15% of the system's energy, the seasonal COP was above 3.1, over the period considered. The average rate of solar energy coverage for water heating was 65% during the 10 first operating months. The results obtained through a dynamic simulation of the system, computed by the TRNSYS Program will enable technical and economical optimization of the system.

Details

  • Original title: Pompes à chaleur : utilisation combinée de l'énergie solaire et de la géothermie basse température.
  • Record ID : 2006-2055
  • Languages: French
  • Source: Revue générale du Froid & du Conditionnement d'air - vol. 96 - n. 1062
  • Publication date: 2006/03

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