E3S Web Conf.
Volume 212, 20202020 International Conference on Building Energy Conservation, Thermal Safety and Environmental Pollution Control (ICBTE 2020)
|Number of page(s)||9|
|Section||Ecology and Energy Saving|
|Published online||26 November 2020|
Energy efficiency of multi-apartment residential houses with individual heat supply
Stoletov State University of Vladimir, Institute of Architecture, Construction and Energy, Gorky str., 87, 600000, Vladimir, Russian Federation
2 Brest State Technical University, Faculty of Engineering systems and Ecology, Maskouskaya str. 267, 224017, Brest, Republic of Belarus
* Corresponding author: email@example.com
Centralized hot water systems widely used in Russia and Belarus are characterized by a considerable length and branching which inevitably leads to increased heat losses and to an unstable hydraulic system. The operation of the domestic hot water system in the circulation mode can be characterized by several parameters; one of which is the specific ratio of the cost of thermal energy for heating a cubic meter of hot water. The parameter is often regulated by law in Russia; exceeding this parameter is considered as administrative violation. The aim of the research is to determine the design and actual costs of thermal energy for hot water supply (hot water heating) and their comparison, analysis of the data obtained. The methodology for determining the design and real costs of thermal energy for hot water supply was to study the operation of the hot water supply system of a residential 144-apartment 9-storey building. The research showed that the actual circulating flow rate is much less than the calculated circulating flow rate. The authors note that in order to optimize the standard for heating a cubic meter of water it is necessary to observe the calculated circulation modes. This will require stabilization of the hydraulic systems of both the external and internal networks which is a difficult but feasible task. The research results are supposed to be taken into account when setting up existing hot water supply systems.
Key words: centralized heat supply / hot water supply / circulation rate / heat calculator / heat energy consumption / hot water consumption
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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