Abstract:

External temperature data is one of the most important parameters affecting the calculation of the energy needs of buildings. In Turkey, where volume heating is seen by energy consumption, the construction of the building's heat insulation design and the calculation of the heating energy needs is done according to the TS 825 "Heat insulation rules in buildings" standard. In TS 825, the provinces are accumulated in degrees-day regions (DGB) according to their climate conditions. The main climate parameter that separates these DGBs is the external temperature data. This study aims to discuss the effect of external temperature data on the building heating energy demand and the validity of the DGBs created in the standard based on external temperature data. In this context, the example created was calculated according to the different external temperature data and the external temperature data of the DGBs in the current and recommended version of the standard, and the validity of the DGBs and the effectiveness of the standard updates were studied separately for 81 years. The findings show that in some transitions between DGBs, the Year values of the regions in different DGBs are very close to each other; even compared Year values of some regions are contrary to the data of the DGBs they are in. This is the reason for a re-examination of the DGB approach. In addition, the newly created DGBs in the recommended version of the standard match better with compared results. In addition, the heating threshold temperature selection has a limited impact on calculations, while the up-to-date of the external temperature data to be used in the analysis has shown to have a significant impact on the heating energy account of the building.

Keywords: