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A. Piewald:
"Performance assessment and modeling of a brick made 'Sonnenhaus' in Zwettl";
Supervisor: A. Mahdavi, M. Schuss; Institut für Architekturwissenschaften, Abteilung Bauphysik und Bauökologie, 2014; final examination: 2014-09-29.

In this Master's thesis the performance of a heat delivery system od an efficient single-family house located in Zwettl, Lower Austria, is investigated. Over the course of ten months, in which the building was inhabitated, monitoring data of the heat delivered to the floor and brick walls was collected. Using these data, a detailes analysis of the buildingÄs perfroamnce is presented. In particular, it is compared to the simulation model that was created during the design phase of the house. It turns out that the design phase model is rather inaccurate and often does not match the actual behavior.
Consequently, this simulation model is investigated and enhanced. Particular improvements concern the following input parameters of the building regime: Set temperature points, natural ventilation, infiltration, internal heat gains and weather data. Most of these are based on the actual user behavior, which was derived form additional sensors in the building (e.g. temperature, CO2 concentration, etc.)
The results are presented by comparing the improved simulation to the design phase model and to the actual monitoring data in a monthly evaluation. The particular influence of each mentioned parameter is analyzed and discussed seperately. It is shown that enhanced simulation much more accurately models the reality.

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thermal simulation, monitoring, solar energy, model calibration, heating demand.