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Author(s):	Ackermann, Thomas
Title:	Energiebedarf versus Energieverbrauch unter Einbeziehung von Langzeitmessungen zum Temperaturverlauf
Abstract:	Wie der Vergleich des Energiebedarfs mit dem Energieverbrauch von sieben exemplarisch ausgewählten Wohngebäuden zeigt, liegen die Werte beim Bedarf in der Regel über den Angaben für den Verbrauch. Dies ist nicht nur auf den anzusetzenden Bezug - Bedarf oder Verbrauch - zurückzuführen, sondern bei Bedarfsberechnungen kommt erschwerend hinzu, dass der Ansatz von DIN V 18599 immer schlechtere Ergebnisse liefert als der Bezug auf DIN V 4108-6 in Verbindung mit DIN V 4701-10. Außerdem zeigt eine Analyse von Langzeitmessungen der Raum- und Außenlufttemperaturen an 33 Standorten in der Bundesrepublik, dass die wirklichen, zeitlich veränderlichen Temperaturläufe in Gebäuden deutlich von den standardisierten, zeitlich konstanten Werten nach Norm abweichen. Energy demand versus energy consumption taking into account long-term temperature measurements The comparison of the energy demand values with the energy consumption values of seven selected residential buildings shows that the determined de-mand values are usually higher than the consumption data. This is not only put down to the reference itself, demand or consumption, but when determining the energy demand by using the approach of DIN V 18599 the results are get-ting worse as by using DIN V 4108-6 in conjunction with DIN V 4701-10. Furthermore, an analysis of long-term measurements of room and outside air temperatures at 33 locations in Germany shows that the real, time-varying temperature curves in buildings clearly diverge from the standardised, temporally constant values according to DIN.
Source:	Bauphysik 42 (2020), No. 1
Page/s:	1-9
Language of Publication:	German

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