| dc.contributor.author | Sobir Jonkobilov | |
| dc.contributor.author | Bektemir Jonkobilov | |
| dc.contributor.author | Jahongir Ruzikulov | |
| dc.contributor.author | Shohruh Bahodirov | |
| dc.contributor.author | Murodilla Ulugmuradov | |
| dc.date.accessioned | 2025-10-17T08:43:20Z | |
| dc.date.available | 2025-10-17T08:43:20Z | |
| dc.date.issued | 2025-07-15 | |
| dc.identifier.uri | https://dspace.kstu.uz/xmlui/handle/123456789/556 | |
| dc.description | Currently, in automated pumping stations, to simplify and reduce the cost of automatic control equipment,
pumps are usually started and stopped with the valve on the pressure line open. During the period of transition
processes, i.e., when starting and stopping pumps, hydraulic shocks are often observed in pipelines, which, under
certain conditions, can reach significant values. In the scientific literature, there are indications that more than 80%
of all damage in pipelines is caused by the destructive effect of hydraulic shocks [10, 11]. According to our
observations, water leaks on such pipelines are growing from year to year. | en_US |
| dc.description.abstract | The article is devoted to the study of water hammer when starting pumps in automated pumping stations
with low inertia of moving masses and taking into account pressure losses when filling the elastic capacity of the
pipeline. The article provides an analysis of scientific works devoted to the determination of shock pressure during
the startup of pumping stations. The article presents an analytical study of shock pressure during the startup of
automated pumping stations, which provides an accurate assessment of the optimal parameters of pumping units and
pressure systems. The article obtained dependence for calculating the shock pressure when starting up automated
pumping stations, taking into account energy loss along the length of the pipeline; it increases the reliability of the
pressure system and ensures resource saving when designing pressure-hydraulic systems. A graphic-analytical
method is proposed to determine the shock pressure during a hydraulic shock when starting a pump with an open
valve installed at the beginning of the pressure pipeline. The results of theoretical studies are compared with
experimental data on shock pressures when starting the main pumps of pumping stations. At the same time, a
reliable agreement was obtained between the results of calculations of pressure pipelines based on the proposed
dependence on water hammer and experimental data. | en_US |
| dc.description.sponsorship | Currently, the theory of water hammer in pressure pipelines has been developed and supplemented in the
scientific works of H.A.Kaveh [1], D.Kraiem [2], M.Fersi [3], A.Triki [4], T.Chen [5], D.Covas [6], and many
others.
Despite many years of studying water hammers, there are still issues in this area of fluid mechanics that require
further research. In automated pumping stations, the pumps start with the valve on the open pressure pipeline. At the
same time, hydraulic shocks often occur in pressure pipelines, which, as studies conducted at the Kungirtag pumping
station in the Kashkadarya region, show, in most cases, even exceed the shocks when the units stop. Meanwhile,
until recently, detailed studies of water hammers when pumping units were not sufficiently carried out since
previously, the pumps were started with the valve closed and then slowly opened | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | Articles You May Be Interested In | en_US |
| dc.subject | Shock pressure, inertia of the water mass, pump with low inertia, shock characteristics of the pipeline, pressure characteristics of the pump | en_US |
| dc.title | Water shock when starting pumps in automated pumping stations | en_US |
| dc.title.alternative | Articles You May Be Interested In | en_US |
| dc.type | Article | en_US |
