Modeling of energy efficient solutions regarding the heating system and the facade heat insulation in the implementation of thermomodernization

Authors

DOI:

https://doi.org/10.15587/1729-4061.2018.123021

Keywords:

thermomodernization of buildings and structures, facade, energy efficiency, thermal insulation, water heating system

Abstract

We substantiated design and construction-technological solutions for increasing the energy efficiency of thermomodernizable buildings and structures based on the conducted calculation-and-experimental and numerical studies. We investigated effective structural parameters and material of examined elements of a thermomodernization system of residential buildings and structures, which started their operation before the 90-ies of the last century. We proposed a number of innovative design and construction-technological solutions for the thermomodernization of residential buildings and structures that provide simultaneous modernization of a system of central water heating and facade insulation. Distribution of the temperature field inside a building structure, temperature on the surface of a facade thermal insulation at variation of its thickness by different forms of making of new indents, where new pipelines of a two-pipe system of a central water heating are located, were investigated. In particular, we established that such placement of pipelines makes it possible to reduce heat losses from these pipelines significantly (by up to 74 %) comparing with the placement in a layer of facade insulation at the side of a wall. We investigated the dependence of the cooling time of a heat-transfer agent temperature to 0 oC at the complete cessation of its flow through pipelines on the thickness of a thermal insulation. We determined experimentally the minimum thickness of a facade insulation layer, which is 50 mm, for the studied temperature mode and operating conditions, as well as for characteristics of the materials used, the geometry of pipelines and the facade insulation.

We obtained the optimum thickness of a facade insulation layer, which is 100 mm. It provides up to a 100 % freeze protection of pipelines even when a heat-transfer agent movement stops for more than 24 hours. We established that an increase in the thickness of a facade heat insulation contributes to the additional drainage of a building structure, which leads to improvement of thermal characteristics of the thermomodernized building. The study showed that the developed innovative design and construction-technological solutions lead to a significant reduction in the energy consumption of existing buildings and structures of the housing stock, which has been in operation for longer than 30 years, and contribute to maintaining comfortable living conditions.

Author Biographies

Andriy Yeromin, Ltd. "Complex engineering solutions" LLC & online Store HeatRecovery Dehtiarivska str., 21, Kyiv, Ukraine, 04119

Director 

Aleksandr Kolosov, National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute» Peremohy ave., 37, Kyiv, Ukraine, 03056

Doctor of Technical Sciences, Professor, Senior Researcher, Ukrainian Patent Attorney

Department of Chemical, Polymeric and Silicate Machine Building

References

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Published

2018-02-07

How to Cite

Yeromin, A., & Kolosov, A. (2018). Modeling of energy efficient solutions regarding the heating system and the facade heat insulation in the implementation of thermomodernization. Eastern-European Journal of Enterprise Technologies, 1(8 (91), 49–57. https://doi.org/10.15587/1729-4061.2018.123021

Issue

Vol. 1 No. 8 (91) (2018): Energy-saving technologies and equipment

Section

Energy-saving technologies and equipment

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Copyright (c) 2018 Andriy Yeromin, Aleksandr Kolosov

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