Einflussparameter auf Heizwärmebedarf und Kühlbedarf von Gebäuden in verschiedenen Berechnungsmethoden von EN ISO 13790

Abstract

Influencing parameters on calculated heating and cooling energy demand in buildings in accordance to various methods of EN ISO 13790. For calculation of energy use for space heating and cooling three methods can be deployed: detailed simulation method, simplified hourly method and simplified monthly method. The different methods differ significantly in terms of level of detail and therefore also in the quality of their results. For the comparison of the results of different models a standard for validation was established, which evaluates the quality of the models based on differences of the annual sums of energy use for heating and cooling. Differences of hourly or monthly values do not influence the validation. This article shows, how mean value and standard deviation can be integrated into the validation method. Furthermore it describes the influence of the elements of the heat balance on the quality of the results.

Shoeboxer: An algorithm for abstracted rapid multi-zone urban building energy model generation and simulation

“…Single zone approach tends to rely on the simpler and therefore faster energy load estimation methods [CEN, 2008] vis-a-vis more detailed dynamic simulations. While simple heat balance methods are widely accepted for heating load estimation, cooling load predictions are found to be less reliable [Kokogiannakis et al, 2008] [Gratzl-Michlmair et al, 2010. Simple methods usually also fail to capture detailed shading effects which makes them less relevant for urban design explorations.…”