Améliorations des échangeurs de chaleur à tube en U enterrés. Mémoire de Maîtrise.
Improvements of U-pipe borehole heat exchangers. Licentiate thesis.
Auteurs : ACUÑA J.
Type de monographie : Thèse de doctorat
Résumé
There are approximately 360 000 systems installed in Sweden with a growing rate of about 30 000 installations per year. The most common way to exchange heat with the bedrock in ground source heat pump applications is circulating a secondary fluid through a borehole heat exchanger, a closed loop in a vertical borehole. The fluid transports the heat from the ground to a certain heating and/or cooling application. A fluid with one degree higher or lower temperature coming out from the borehole may represent a 2-3% change in the COP of a heat pump system. This licentiate thesis presents the analysis of several groundwater filled borehole heat exchangers, including standard and alternative U-pipe configurations (e.g. with spacers, grooves), as well as two coaxial designs. It embraces measurements of borehole deviation, ground-water flow, undisturbed ground temperature profile, secondary fluid and groundwater temperature variations.
Détails
- Titre original : Improvements of U-pipe borehole heat exchangers. Licentiate thesis.
- Identifiant de la fiche : 30000672
- Langues : Anglais
- Édition : Kth (royal institute of technology) - Suède/Suède
- Date d'édition : 2010
- ISSN : 11020245
- ISBN : 9789174156607
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Impact of the ground-source heat pump running t...
- Auteurs : SOLDO V., RUSEVLJAN M., GROZDEK M., et al.
- Date : 21/08/2011
- Langues : Anglais
- Source : Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
- Formats : PDF
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Energy efficiency of variable capacity ground s...
- Auteurs : MUNARI P., DA RIVA E., DEL COL D., et al.
- Date : 05/04/2011
- Langues : Anglais
- Source : Sources/sinks Alternative to the Outside Air for Heat Pump and Air-conditioning Techniques (Alternative Sources - AS), Padua, Italy, April 5-7, 2011. / International Sorption Heat Pump Conference (ISHPC11), Padua, Italy, April 6-8, 2011.
- Formats : PDF
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Recovery times after thermal response tests on ...
- Auteurs : JAVED S., CLAESSON J., BEIER R. A.
- Date : 21/08/2011
- Langues : Anglais
- Source : Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
- Formats : PDF
Voir la fiche
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Détermination de la profondeur pour des échange...
- Auteurs : YU Z., HU P., XU Y., et al.
- Date : 03/2009
- Langues : Chinois
- Source : HV & AC - vol. 39 - n. 222
- Formats : PDF
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Analyse des tendances de développement de la te...
- Auteurs : YANG L., XU W., ZHU Q., et al.
- Date : 08/2012
- Langues : Chinois
- Source : HV & AC - vol. 42 - n. 267
- Formats : PDF
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