Estimation of the influence of hydraulic balancing of the heating system and shading of external enclosures on the energy consumption of the university building
DOI:
https://doi.org/10.31548/energiya2021.06.032Abstract
The main design features of single-pipe systems with vertical wiring, the reasons for their low efficiency, which include: physical and moral obsolete equipment and pipeline valves, lack of automatic control and regulation of coolant supply, low efficiency of heating devices, are characterized. Using the methodology according to DSTU B V.2.6-189-2013 and DSTU B A.2.2-12: 2015, the effectiveness of the introduction of automatic balancing of the heating system was first investigated, and then the effect of shading of external enclosing structures on the energy consumption of the university building, taking into account the existing state of external enclosing structures ... It has been established that balancing the heating system makes it possible to reduce the specific energy consumption for heating by 7.6%, and to reduce the energy consumption of the heating system by 164.8 MWh. The influence of the shading of external enclosing structures on the energy consumption of the building of the university is estimated, taking into account the existing state of the external enclosing structures in the absence of balancing the heating system of the building. It is shown that it leads to an insignificant excess of energy consumption for heating by 0.3 % or 6.6 MWh. It has been proven that the energy consumption of a building, taking into account the shading coefficient after balancing the heating system, can reduce the specific energy consumption for heating by 7.9 %, and reduce the energy consumption of the heating system by 165.4 MWh. Assessing the effect of shading of external enclosing structures "before" and "after" balancing the heating system of the university building, it can be argued that the energy consumption of the heating system has been reduced by 158.8 MWh or by 7.7 %.
Key words: flow, balancing, solar insolation, heating system, shading
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