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Article

A simulation-methods for effective heat energy distribution in heating systems in public buildings

Murodil Madaliev Mirzokhid Sodikov*

dr.m.sodikhov@bk.ru

Abstract

The relevance of the research was determined by the existing problem of uneven heat distribution in top-down single-pipe heating systems in buildings, which led to overheating of upper floors and insufficient heating of lower floors, thereby negatively affecting indoor thermal comfort and energy efficiency. The purpose of the work was to analyse methods of improving the indoor microclimate and equalise room temperatures by ensuring uniform distribution of the heat carrier in a top-down designed single-pipe heating system in public buildings. This study used numerical simulation in COMSOL Multiphysics, a CFD software package, to examine the impact of a radiator connection scheme on the heat distribution in the heating system of a five-story public building. The modern vertical single-pipe heating system was examined in the study. System that was managed by valves on the higher floors was created, and the two were contrasted. The local heat flux, flow velocity, and room air temperature were all calculated. Each floor’s radiators’ temperature loss from the heat transfer medium was assessed independently. The findings demonstrated an obvious unequal heat distribution in the current heating system, with the upper floors overheating and the lower floors not receiving adequate heating. Following the implementation of the new plan, the system’s efficiency increased by 21.62%, and the temperature of the heat carrier reaching the first floor increased from 47.813°C to 52.594°C. The practical significance of this study was that it provided an effective method for improving heat distribution in multi-story buildings by regulating flow using a bypass pipe in a single-pipe heating system, which increased thermal comfort and reduced energy consumption

Keywords

heat transfer; CFD-simulation; radiator heating system; energy efficiency; thermal comfort; bypass regulation

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Received 06.02.2026, Revised 01.05.2026, Accepted 02.06.2026 Published 22.06.2026

Retrieved from Vol. 12, No. 2, 2026

Suggested citation

Madaliev , M., & Sodikov, M. (2026). A simulation-methods for effective heat energy distribution in heating systems in public buildings. Architectural Studies, 12(2), 19-27. https://doi.org/10.56318/as/2.2026.02

https://doi.org/10.56318/as/2.2026.02

Pages 19-27

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ISSN 2411-801X e-ISSN 2786-7374  UDC 71;72
DOI: 10.56318/as