This thesis deals with the valuation of heating systems with respect to providing heat in rooms based on the momentary need. Due to the temporal and local changes in the room temperature there are unavoidable effects of overheating, whose kind and size significantly depend on the current heating system. Based on criteria for evaluating these effects of overheating (radiative distribution, dynamics in the heat supply) an optimized dynamic electrical area-heating system was developed as a concept. The main characteristics of this system are the relatively large heating areas in comparison with the room interior surface area, their low overtemperatures and a composition of the heating elements that is nearly free of storage mass.The investigation of the radiative temperature field within the room with regard to the effect on the user was carried out by using CFD simulations to derive information on the mean radiative temperature of the interior surface area, the radiative temperature asymmetry, and the thermal comfort experienced. In addition, the amount of losses for the dynamic area-heating system caused by temporal overheating effects was ascertained by carrying out thermal building simulations for a single room and for a living unit with several rooms used differently. These results were evaluated in comparison to standard heating systems. Different scenarios of heating and ventilation were taken into account. It was shown that the user’s type of ventilation has a great influence on the amount of heat required annually and that especially a combination of heating and ventilating based on momentary needs leads to significant economies that result from the exact adaptation of heating to the user’s behavior.
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