Abstract
The result of the implementation of technical solutions should be evaluated in terms of the effect on the power system as a whole. At the same time, the main task is to obtain a socio-economic effect noticeable for the consumer of energy resources, as he is a key figure of the energy system. The article considers the influence of modernization of hot water supply systems (HWS) by transferring the function of hot water preparation in apartment buildings to individual heating stations (IHS) from the district heating stations (DHS) with their subsequent liquidation, as well as the elimination of hot water supply grid. The expected result of these measures is the reduction in heat energy loss in heat carrier agents in heating networks, as well as improving the quality and reliability of the hot water supply system and the possible reduction of energy consumption by residents in apartment buildings. The effect on the operation of the heat supply system will not be provided by IHSs themselves, but by automatic controllers, installed together with them. This, in turn, will make it possible for the Central Heating and Power plants (boiler) to be modernized in operation in a timely manner, to improve the system’s efficiency. Computational studies were carried out in order to assess the impact of the transition from IHS to hot water supply on the energy system.
Highlights
Much attention is currently paid to the problems of improving the efficiency of heating systems, as it is one of the most socially significant sectors of economy
One of the ways to increase the efficiency of heat supply is to reduce heat losses by decommissioning district heating stations and hot water supply grids with transferring the function of “preparing” hot water to the consumer by installing an individual heating stations (IHS) with individual waterwater heaters (IWWH) [1-3]
After JSC Tatenergo (CHP plants, boiler houses) heat supply sources had transferred the function of “preparing” hot water from central heating stations to individual heating stations, significant fluctuations in network water consumption were observed during the day
Summary
Much attention is currently paid to the problems of improving the efficiency of heating systems, as it is one of the most socially significant sectors of economy. The research, carried out in the cities of Naberezhnye Chelny and Kazan, showed that the above mentioned actions will have a positive impact on the efficiency of heat supply grids, and will improve the quality and reliability of hot water supply for consumers [4] In this case, the most important part in making technical decisions is to evaluate the effect on the energy system as a whole. We have stated that the main economic effect is achieved by reducing the consumption of thermal energy, which in the aggregate sampling of houses was about 4.9% This fact is confirmed by the general decrease by 5.59% in the net heat supply of JSC Tatenergo to the “Residents” group in the city of Kazan. After JSC Tatenergo (CHP plants, boiler houses) heat supply sources had transferred the function of “preparing” hot water from central heating stations to individual heating stations, significant fluctuations in network water consumption were observed during the day.
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