Heating and cooling a building using water from boreholes

Abstract

Abstract. The work which is presented is part of a more extensive study related to a system of heating and cooling an old building of the 16th century, of the Evora University using water retired from four boreholes located in the vicinity of the building. In this work we present only the model made for heating and for cooling a room, the amount of water needed, and the maximum number of rooms which could be heated or cooled with the water available. The second part of the work is related with the time needed for the hole return its temperature, after being introduced in it water coming from the building. We conclude that the maximum number of rooms which can be cooled is different from the number of rooms that can be warmed. We also conclude that the introduction of water in the holes will affect only a small area around the holes, and the perturbation of the temperature occurs in a short period of time.