Thermal properties and reduction of energy consumption of buildings
Czech University of Life Sciences Prague, Faculty of Engineering, Kamycka 129, 16521, Prague 6, Czech Republic; *Correspondence: tybljiri@seznam.cz
Abstract:
The aim of this paper is to summarize and present all relations, which are essential in determination of winter heat balance of the buildings, and that enable a reduction of energy consumption or heating costs. These questions should be realized and taken into account already in the proposal of building design. This paper shows the methods of calculation of winter heat balance and results of measurements which verify theoretical conclusions in real conditions. These factors are applied on two existing buildings. There are due to their different shapes and constructions proposed different solutions of improvement. Two different buildings were selected for this research work: a large ground floor building and a high hall. In the case of the first building (the large ground floor building) it appears to be a major problem not sufficient thermal properties of the envelope constructions. The enormous heat losses caused high heating costs. The existing heating method of the second building (the high hall), is not suitable. The temperature distribution in the interior is undesirable, which results in very high energy consumption. The use of radiant ceiling panels could enable to achieve favourable conditions in the working area and considerable energy savings.
Key words:
heat balance, high building, radiant heating, thermal insulation