Development of production of modular boiler plants in Uzbekistan and their comparative analysis

Abstract

Relevance: studies of heating networks, conducted in cities of the republic, have shown the ineffectiveness of the existing centralized heating system. One of the negative consequences of overheating apartments in multi-story buildings during relatively warm winter periods, subject to the established norm for hot water supply, is that the population is accustomed to high temperatures in residential premises. With the existing system of centralized heating, the consumption of makeup water is usually increased. This is because the normal temperature inside the premises at 18°C seems uncomfortable for consumers, and they are accustomed to interfere with the operation of internal communications. Increased volumes of network water in one separate building inevitably lead to a decrease in the flow of the heat carrier to neighboring buildings, provoking residents to violate the operating regime of the heating system. When the water temperature drops, the process of readjusting the operation of the heating system is accelerated. The consumption of makeup water exceeds the capabilities of heat sources, which forces them to reduce the parameters at the outlets, further limiting the heat energy supplied to consumers.

Aim: to analyze the experimental data from two existing Akhmad-Yugnaki’s boiler houses in the Mirzo - Ulugbek districts and show that modular boilers can be used for decentralized heating.

Methods: in this article, the analytical method was used as the main method.

Results: considering the ineffectiveness of such a mechanism for providing heat, the possibility of switching buildings to closed contours through heat exchangers is being considered, which, as expected, will double the service life of centralized heating systems. The decentralization of the heating sector through the introduction of small and autonomous heating units is also being considered. It is assumed that the use of high-efficiency boilers will reduce the risk of heat supply failures and increase the efficiency of small boiler houses, as well as minimize heat losses during transportation.