PECULIARITIES OF THE NEW METHOD OF CALCULATING THE DESIGN HEAT LOAD OF BUILDING’S HEATING SYSTEMS ACCORDING TO DSTU EN 12831-1:2017

Abstract

The comparative analysis of the method for calculating the design heat load of building's heating system according to EN 12831 edited in 2006 and 2017 has been performed. The new standard edited in 2017 differs significantly from the previous standard edited in 2006. Especially significant changes have undergone the method of calculating the ventilation heat losses, becoming more accurate, flexible approach to determine the temperature in adjacent apartments, affecting the heat loss values "to the neighbor" and etc. The new standard provides an opportunity to define the design external temperature more precisely and also taking into account internal and external heat gains calculating the heat load, but the methodology of its development should be determined at the national level. The main tasks of widespread introduction of the new standard DSTU EN 12831-1: 2017 into the practice of designing heating systems for buildings in Ukraine have been identified.