An attempt to increase the performance of a climatizing system using water from boreholes, in an old building

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.