Combined ventilation and heating systems in floors demand extensive investigations about the heat transfer before they could be installed in residential buildings. For basic investigation about the heat transfer two experimental plants with different duct geometries are build in a laboratory of the University of Essen. Especially the measurements of temperature on different places of the plants are taken to determine the heat transfer at the two floors.
The task of this study is not the analysis of these influences when calculating the heat losses. Instead the influence of wind and temperature on the total heat losses at 1% probability exceedance of the heat losses is being investigated. Thecalculation is based on the correlation of the outdoor temperature, the wind speed and its direction, the transmission coefficient correlation and the air-leakage of the curtain wall.
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