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Title: An attempt to increase the performance of a climatizing system using water from boreholes, in an old building
Authors: Duque, Maria Rosa Alves
Pascoal, Joana
Keywords: Heat flow
Old Building
heat transfer
transport conditions
Temperature fluctuations
Issue Date: Jun-2013
Publisher: EGC2013
Citation: Duque,M.R. and Joana,P.(2013).An attempt to increase the performance of a climatizing system using water from boreholes, in an old building.Proceedings of EGC2013. European Geothermal Congress, Pisa, 3-7 June, Italy. Paper number SG2-07, 4 pages.
Abstract: ABSTRACT This paper shows part of a broader work made with the aim of studying a climatizing system of an old building. We studied the influence of the temperature variations at the surface, to the temperatures measured in the holes and we conclude that at 0.7 m depth (depth where the pipes are buried) the diurnal variations can be neglected but seasonal temperature variations affect the temperature measured in the holes. We made also a model for the flow and temperature of the fluid in the pipes. Temperatures versus radius of the pipes were obtained for a winter day and a summer day at several distances of the holes. Water temperature in the hole at 30 m depth is 19°C. With this study we cam say that the temperature of the water in the pipes is influence by air temperatures and a more detailed study must be done in order to increase the efficiency of the system.
Type: article
Appears in Collections:FIS - Artigos em Livros de Actas/Proceedings

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