: 14-20
Lviv Polytechnic National University, Department of Heat and Gas Supply and Ventilation

Main fields of application of pressure distributive pipeline are presented. Schemes for construction of distributive pipelines in a range of technological processes and in devices are suggested. Also, the principle
of their operation is described. Pressure distributive pipelines with discrete dispensation of fluid along the path are applied in the following spheres: irrigation (sprinkler, subsoil, and surface irrigation); water supply
and water removal (tubular distributive systems of purificatory structures, dispersed outlets of purified sewage waters, fire-fighting systems); power engineering (cooling of circulating water in nuclear and thermal
power plants (spray ponds and cooling towers) solar collectors); ventilation (tide systems); agricultural aviation (spraying of plants); mechanical engineering (fuel distributive main-pipelines of multi-cylinder internal combustion engines); chemical industry; water transport (distributive systems of water-filling for floodgates and large-sized docks); and others.

In long distributive pipelines, there takes place decrease in fluid head along the stream. This causes a decrease in fluid dispensation along the path. In majority of cases of industrial processes, a problem of ensuring of reduction of non-uniformity of fluid dispensation along the whole length of the distributive pipeline arises. The search of ways of reduction of non-uniformity of operation of distributive pipelines still continues. The wide-spread application of enforced streams with variable flow rate fluid flows as well as the absence of reliable techniques of their calculation indicates the urgency of the problem. The authors of this article and those of other publications work on solution of this problem. A way of regulation of fluid dispensation along the path from equipped with nozzles pressure distributive pipelines has been invented. The aim of the author`s works is experimental checking and substantiation of the previously suggested methods for regulating the operation of pressure distributive pipelines.

Bosak N., Cherniuk V., Matlai I., &I Bihun. (2019). Studying the mutual interaction of hydraulic characteristics of water distributing pipelines and their spraying devices in the coolers at energy units . Eastern-European Journal of Enterprise Technologies, Vol. 3.8 (99), 23-29.
Danilov U.M., Muhametzjnova A.G., Kulmenteva E.I., & Petrovicheva E.A. (2004). Investigation of turbulent shift of two-component micsture in a pipe with periodically changing cross-section  bulitin of Kasan technological university, Vol. 1,  172-179.
Dzyubenko D.V. (1975). Sprinkl irrigation in USA. Hydro engineering and melioration, Vol. 4, 97-109
Kravchyk А. М. (2004). Wariable mass hydraulics for pressure pipelines of engineering system: manuscript for academic degree of Doctor of Technical Sciences: Hydraulics and Engineering Hydrology Kiev, 35 p.
Novoyan H.А. (1975). Examples of calculations of waterpassing stractures. Kiev. 148 p.
Chernyshov  D. O. (2005). Influence of hydrodynamics of stream on charecteristics of work of distritutive pipelines: manuscript for academic degree of Candidate of Technical Sciences: Hydraulics and Engineering Hydrology Kiev, 20 p.
Levitsky B.F. & Cherniuk V.V. (1992). Authors certificate 1756483 USSA, МКI E 03F 1.00, 5.12. Device for sewage water discharche . № 4806326.29; Submitted 30.03.90. Published. 23.08.92, Bul. Vol.31, 4 p.
Cherniuk V.V. (2008). Method of calculation of pressure of distributive pipeline. Applied hydromechanics (Institute of Hydromechanics, Academy of Sciences of Ukraine) 2008.Т. 10 (82), Vol. 3, 65-76.
Cherniuk V.V. & Ivaniv V.V. (2017). Patent for invention № 115840 Ukraine, MPK G05D 7.00, F17D 1.02, F17D 1.08. Way of regulation of fluid flow along the path in pipeline with nozzles. Lviv Politechnic National University. № a 2016 11498; Submited 14.11.2016; Published 26.12.2017, 5 p.
Cherniuk V.V., Ivaniv V.V., Bihun I.V., & Wojtowicz J.M. (2020) Coefficient of Flow Rate of Inlet Cylindrical Nozzles with Lateral Orthogonal Inflow. In: Blikharskyy Z., Koszelnik P., Mesaros P. (eds) Proceedings of CEE 2019. CEE 2019. Lecture Notes in Civil Engineering, vol 47. Springer, Cham.
Yakhno O.M., Cherniuk V.V., & Hnativ R.M. (2016). Pressure streams with wariable characteristics monography, Lviv Politechnic National University, 408 p.
Cherniuk V.V (1995). Water discharge of periodic action. Problemy budownictwa i inżynierii środowiska. Cz. II. Inżynieria Środowiska: praci IV naukowej konferencji Rzeszowsko-Lwowskej. 15-16 wresień 1995. - Rzeszów (Poland): Politechnika Rzeszowska, 9-14.
Bihun І.V., Ivaniv V.V., & Cherniuk V.V. (2019) Coefficients of flow rate of nozzles with lateral inlets installed in pressure distributive pipelines . III International scientific and technical conference Water supply and drainage design, construction, operation, monitoring. Lviv Politechnic National University, 256-258.
Cherniuk Volodymyr & Ivaniv Vasyl (2017) Influence of Values of Angle of Jet-joining on Non-uniformity of Water Inflow Along the Path in Pressure Collector-Pipeline "Environmental Engineering", 10th International Conference. Vilnius Gediminas Technical University Lithuania, 27-28; April 201. 7 p. (eISSN 2029-7092.eISBN 978-609-476-044-0; Article ID: enviro.2017.073).