Thermal load of buildings as a parameter of energy efficiency of the heating system

Authors

  • A. Kolienko National University «Yuri Kondratyuk Poltava Polytechnic»
  • O. Shelimanova National University of Life and Environmental Sciences of Ukraine image/svg+xml

DOI:

https://doi.org/10.31548/energiya6(82).2025.041

Abstract

Reducing heat energy consumption and increasing energy efficiency at all stages of heat transformation in district heating systems is a key measure to combat climate change, which is the goal of the EU energy policy.

The value of the calculated heat load (CHL) is the basis for determining the heat carrier consumption in the heat networks of district heating systems. However, the inconsistency of regulatory documentation and changes taking place in the field of heat supply have led to the fact that today there is no generally accepted methodology for determining this value.

The purpose of the study is to compare existing methods for determining the value of CHL for heating needs and to provide recommendations for the correct determination of this indicator for different categories of buildings.

The general principles of calculating the heat load for heating and ventilation systems of residential and public buildings are considered.

Problems that arise during the determination of the value of the connected heat load for district heating systems are noted. Recommendations are given on ways to solve such problems/

Key words: connected heat load, calculated heat losses, thermal resistance, heating and ventilation

References

1. Directive (EU) 2024/1275 of the European Parliament and of the Council of 24 April 2024 on the energy performance of buildings. Available at: https://eur-lex.europa.eu/eli/dir/2024/1275/oj/eng

2. Zakon Ukrainy vid 09.11.2017 № 2189-VIII «Pro zhytlovo-komunalni posluhy» [Law of Ukraine dated 09.11.2017 No. 2189-VIII “On Housing and Communal Services”]. Kyiv, 2018.

3. Normy ta vkazivky po normuvanniu vytrat palyva ta teplovoi enerhii na opalennia zhytlovykh ta hromadskykh sporud, a takozh na hospodarsko-pobutovi potreby v Ukraini. KTM 204 Ukraina 244-94 [Norms and instructions for the regulation of fuel and thermal energy consumption for heating residential and public buildings, as well as for household needs in Ukraine. KTM 204 Ukraine 244-94] (2001). Kyiv: Vipol, 376.

4. DSTU-N B V.1.1-27: 2010 «Budivelna klimatolohiia [DSTU-N B V.1.1-27: 2010 "Construction Climatology"]. Kyiv: Minrehionbud Ukrainy, 123.

5. DSTU EN 12831-1:2017 «Enerhoefektyvnist budivel. Metod rozrakhunku proektnoho teplovoho navantazhennia. Chastyna 1. Teplove navantazhennia» [DSTU EN 12831-1:2017 “Energy performance of buildings. Method for calculating the design heat load. Part 1. Heat load”]. Kyiv: Minrehionbud Ukrainy.

6. Koliienko, V. A., Koliienko, A. H. (2017). Vyznachennia rozrakhunkovykh vytrat teploty na potreby opalennia i ventyliatsii [Determination of estimated heat consumption for heating and ventilation needs]. Enerhoefektyvnist v budivnytstvi ta arkhitekturi: nauk.-tekhn. zb. Kyiv: KNUBA, 9, 103 - 109.

Published

2025-12-31

Issue

Section

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