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POWER ENGINEERING: economics, technique, ecology
ISSN 1813-5420 · e‑ISSN 2308-7382 Open Access · CC BY 4.0
Vol. · Issue 3 · 2026 Oct 12, 2026 ENERGY EFFICIENCY AND ENERGY SAVINGS

ANALYSIS OF THE IMPACT OF VENTILATION SYSTEM EFFICIENCY ON THE ENERGY CONSUMPTION OF BUILDINGS WITH DIFFERENT LEVELS OF THERMAL INSULATION IN THE CLIMATIC CONDITIONS OF UKRAINE

IB
Inna Bilous Corresponding National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Ukraine
VS
Viktor Shkliar Національний технічний університет України "Київський політехнічний інститут імені Ігоря Сікорського", Ukraine
VD
Viktoriia Dubrovska National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Ukraine
SK
Semen Kramarenko National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Ukraine
Pages159-168 PublishedOct 12, 2026 LicenseOpen Access
PDF (Ukrainian)
VOL · ISS 3 · 2026 85 View issue

Abstract

Objective The study aims to determine the impact of changing the thermal insulation characteristics of the building envelope and implementing a heat-recovery ventilation system on the building's energy consumption, taking into account energy efficiency requirements for different regions of Ukraine.

Methods The research methodology is based on mathematical modelling of thermal processes within a building using building physics methods in accordance with current regulatory requirements. The analysis was performed for several scenarios of building insulation and the installation of a heat-recovery ventilation system, determining the building's energy demand across different climatic zones of Ukraine.

Results The hourly variation in the energy load for heating and domestic hot water supply was obtained for a building in Kyiv over a calendar year. The impact of increasing the thermal resistance of the insulation on reducing winter heat losses, as well as its effect on increasing the cooling load during the summer season, was quantitatively assessed for various cities in Ukraine. The potential for reducing the building's energy demand through the integration of ventilation systems with different levels of exhaust air heat recovery efficiency was determined. Furthermore, the difference in seasonal energy loads between Kyiv and Odesa was established for a combined building retrofit scenario.

Conclusions The research findings justify the need to implement energy-efficient solutions tailored to regional climatic characteristics: northern regions require measures to minimize heat losses and improve heating system efficiency, while southern regions must account for the risks of summer overheating and incorporate passive cooling strategies.

Keywords

#thermal retrofitting #energy efficiency of buildings #insulation #ventilation systems #heat recovery #specific energy demand for heating #cooling #and hot water supply

References

  1. DBN V.2.6-31:2016 «Teplova izoliatsiia budivel». URL: https://dbn.co.ua/dbn/DBN_V.2.6-31-2016_Teplova_izolyatsiya_budively.pdf. Accessed: Feb. 22.2026.
  2. DBN V.2.6-31:2021 «Teplova izoliatsiia ta enerhoefektyvnist budivel». URL: https://dbn.co.ua/load/normativy/dbn/1-1-0-13. Accessed: Feb. 17.2026.
  3. Buyak, N., Deshko, V., Borodinecs, A., Bilous, I., Naumchuk, O., Sukhodub, I. Assessment of strategies for low-carbon regeneration of buildings in Eastern Europe. Energy, 2025, Vol. 325, 136069. DOI: 10.1016/j.energy.2025.136069.
  4. Valerii Deshko, Inna Bilous, Nadia Buyak, Hanna Hetmanchuk, Maksym Hurieiev, Tatjana Odineca. Parametric Analysis of Heat Flows Through Building Envelope Considering Orientation, Massiveness, and Intermittent Heating Modes. Rocznik Ochrona Środowiska 2025, vol. 27, pp. 110-120. DOI: https://doi.org/10.54740/ros.2025.010
  5. I.Iu. Bilous, I.O. Sukhodub, S.O. Kramarenko. Otsiniuvannia enerhetychnoi efektyvnosti zhytlovykh budivel suchasnoi zabudovy pry vprovadzhenni kompleksu enerhozberihaiuchykh zakhodiv po pokrashchenniu teplozakhysnykh vlastyvostei ohorodzhen ta vykorystanniu vidnovliuvalnykh dzherel enerhii. Refrigeration Engineering & Technology. 2024. Вип. 60, № 4. DOI: https://doi.org/10.15673/ret.v60i4.3053
  6. Hulai B., Kuz O., Bundzylo V. Analiz efektyvnosti detsentralizovanykh system ventyliatsii z rekuperatsiieiu teploty. Ventilation, Lighting and Heat-Gas Supply. 2025. Vol. 51. pp. 34–45. DOI: https://doi.org/10.32347/2409-2606.2024.51.34-45.
  7. Zamytskyi O., Korbut V., Yalova A., Bondar N. Otsinka efektyvnosti pasyvnoi ventyliatsii termomodernizovanoho zhytlovoho budynku. Ventilation, Lighting and Heat-Gas Supply. 2025. Vol. 53. pp. 90–102. DOI: https://doi.org/10.32347/2409-2606.2025.53.90-102.
  8. Podliesnyi A., Petrenko A. Utylizatsiia teploty u ventyliatsiinykh systemakh: ohliad suchasnykh tekhnolohii, enerhoefektyvnist ta protydiia obmerzanniu. Ventilation, Lighting and Heat-Gas Supply. 2025. Vol. 54. pp. 52–75. DOI: https://doi.org/10.32347/2409-2606.2025.54.52-75.
  9. Moskvitina A., Vakulenko D. Tekhniko-ekonomichnyi analiz zastosuvannia reheneratyvnykh reversyvnykh prystroiv dlia pidvyshchennia klasu enerhetychnoi efektyvnosti zhytlovykh budynkiv ta zmenshennia navantazhennia system opalennia. Ventilation, Lighting and Heat-Gas Supply. 2025. Vol. 54. pp. 76–93. DOI: https://doi.org/10.32347/2409-2606.2025.54.76-93.
  10. Liyanage D. R., Hewage K., Hussain S. A., Razi F., Sadiq R. Climate adaptation of existing buildings: A critical review on planning energy retrofit strategies for future climate. Renewable and Sustainable Energy Reviews. 2024. Vol. 199. 114476. DOI: https://doi.org/10.1016/j.rser.2024.114476.
  11. Shen P., Li Y., Gao X., Zheng Y., Huang P., Lu A., Gu W., Chen S. Recent progress in building energy retrofit analysis under changing future climate: A review. Applied Energy. 2025. Vol. 383. 125441. DOI: https://doi.org/10.1016/j.apenergy.2025.125441.
  12. Yang Y., Zou J., Jin Z., Liu Y., Yang Q. Rethinking Climatic Adaptation for Residential Building Energy Efficiency: Cross-Regional Comparative Analysis for Envelope Insulation in China. Buildings. 2026. Vol. 16, No. 14. 2755. DOI: https://doi.org/10.3390/buildings16142755.
  13. Designbuilder URL: https://designbuilder.co.uk/. Accessed: Feb. 22.2026.
  14. Meteonorm 8 Klimatychni dani. URL: https://meteonorm.com/climate/ Accessed: Feb. 22.2026.
  15. I. Yu. Bilous, H. O. Hetmanchuk, S. O. Kramarenko, and A. V. Havrysh, “Budivli z blyzkym do nulʹovoho spozhyvannia enerhii v suchasnykh ta istorychnykh budivliakh: vyklyky ta rishennia”. Refrigeration Engineering & Technology. 2025. Вип. 61, № 2. DOI: https://doi.org/10.15673/ret.v61i2.3173.
  16. DBN V.2.5-67:2013 Opalennia, ventyliatsiia ta kondytsionuvannia. URL: https://dbn.co.ua/load/normativy/dbn/1-1-0-1018 Accessed: Feb. 10.2026.
  17. Nakaz №260 vid 27.10.2020 Pro zatverdzhennia Minimalnykh vymoh do enerhetychnoi efektyvnosti budivel. URL: https://zakon.rada.gov.ua/laws/show/z1257-20#Text. Accessed: Feb. 22.2026.

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Copyright (c) 2026 Інна Білоус, Ірина Суходуб, Вікторія Дубровська, Семен Крамаренко

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