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Author(s):	Schild, Kai
Title:
Abstract:	Transmissionswärmeverluste über erdberührte Bauteile werden allgemein gemäß der internationalen Norm DIN EN ISO 13370 berechnet. Als Alternative und Vereinfachung werden in DIN V 4108-6 und DIN V 18599-2 Temperatur-Korrekturfaktoren eingeführt. Beide Rechenansätze führen oft zu erheblich voneinander abweichenden Ergebnissen. Dies führt entweder zu einer Unterschätzung der Wärmeverluste oder zu unwirtschaftlichen Kompensationsmaßnahmen durch dickere Wärmedämmungen. In diesem Artikel werden die Ergebnisse einer Parameterstudie gezeigt, die zur Quantifizierung der Größenordnung der Abweichungen durchgeführt wurde. Ferner wird eine Tabelle mit neuen Temperatur-Korrekturfaktoren gezeigt, die für die Nutzung bei Energieeffizienzberechnungen vorgeschlagen werden. New temperature correction factors for ground coupled building parts with energy performance calculations. Transmission heat losses for building elements in contact with the ground are calculated according to the international standard DIN EN ISO 13370. As an alternative and simplification DIN V 4108-6 and DIN V 18599 introduce thermal correction factors. The result of both approaches often vary a lot. This could lead to an underestimation of the heat loss as well as to uneconomic overcompensations by insulation measures. In this article the results of a parameter study are shown, that has been carried out to quantify the size of the deviations. Furthermore new temperature correction factors are shown, that are recommended for energy performance calculations.
Source:	Bauphysik 36 (2014), No. 2
Page/s:	59-67
Language of Publication:	German

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