The perspective direction for the use of waste heat from industrial and energy facilities is the use in agriculture, namely for theneeds of crop and animal husbandry. Technologies for using lowpotential heat of industrial and energy facilities are constructively implemented in the form of special hydrotechnical systems for heating the soil, and various devices (trays, pipes, hoses, thin-walled shells, etc.) are used as heaters in the systems. The hydraulic calculation was carried out and the main parameters of the water supply network for the hydrotechnical system with casings-sleeves for an area of 1 ha were established, the structural dimensions of the constituent elements (sections, modules), etc. were substantiated. Inparticular, it is recommended to create a surface heating system on an area of 1 hectare according to the modular principle, thedimensions of the block section should be 1.0x23 m, the block module – 23.0x23.0 m, the number of block modules – 16, block sections – 160. For the operation of the system on an area of 1 hectare, initial pressures in the range of 1.0–1.1 m are required for a consumption of 1.5 l/s per block section. When this flow is reduced to the nominal, working value (0.8–1.0 l/s), the initial pressure at the head of the main pipeline will be 0.5–0.6 m. This allows the initial pressure to be created by the water horizon in the channel, tray or a regulating small pool, into which it is advisable to pump warm water with a mobile circulation pump. Under certain conditions, it is possible to use the final pressure of discharged hot water from the enterprise's technical water supply system. At the same time, the system's maximum need for hot water will be 240 l/s, and the required maximum pressure at the head of the main pipeline will be up to 1.5 m. It is advisable to supply water to the network from a small regulating basin. Economically beneficial diameters of the distribution and collecting network are 110–140 mm, supply and outlet – 160–180 mm, main pipeline – 280–450 mm, discharge pipeline – 225–355 mm.
Author Biographies
I.G. Gerasimov, National University of Water and Environmental Engineering
Doctor of Engineering, Professor
О. Л. Пінчук, National University of Water and Environmental Engineering
Candidate of Engineering (Ph.D.), Associate Professor
I.V. Romaniuk, National University of Water and Environmental Engineering
Candidate of Engineering (Ph.D.), Associate Professor
S. O. Kunytskyi, National University of Water and Environmental Engineering
Candidate of Engineering (Ph.D.), Senior Researcher
S. V. Shatnyi, National University of Water and Environmental Engineering
Candidate of Engineering (Ph.D.), Associate Professor
N. V. Ivanchuk, National University of Water and Environmental Engineering
Candidate of Engineering (Ph.D.), Associate Professor
