Results 31 to 40 of about 465,669 (314)

Energy-efficient control of pump units based on neural-network parameter observer [PDF]

open access: yes, 2020
An observer based on an artificial neural network was designed. The observer determines the pumping unit performance depending on the operating point. Determination is based on the measured technological coordinates of the system and the pressure of the ...
Burian, S. O.   +4 more
core   +1 more source

A Review of the Efficiency Improvement of Hydraulic Turbines in Energy Recovery

open access: yesProcesses, 2023
Turbine energy recovery is a process energy saving technology, and understanding turbine efficiency has important operational and economic benefits for the operator of a power plant.
Yunguang Ji   +5 more
semanticscholar   +1 more source

Characterization of Hydraulic Power in Free-Stream Installations

open access: yesInternational Journal of Rotating Machinery, 2017
The performance of open-channel hydropower devices can be optimized by maximizing the product of their load, hydraulic, and generator efficiencies. The maximum hydraulic power theoretically available must be defined according to the operational scenario ...
Olivier Cleynen   +2 more
doaj   +1 more source

A Model for Selecting the Most Cost-Effective Pressure Control Device for More Sustainable Water Supply Networks [PDF]

open access: yes, 2019
Pressure Reducing Valves (PRV) have been widely used as a device to control pressure at nodes in water distribution networks and thus reduce leakages. However, an energy dissipation takes place during PRV operation.
Fernández García, I.   +2 more
core   +1 more source

OVERVIEW OF SELECTED HYDRAULIC DEVICES SUPPORTING ROAD RESCUE OPERATIONS

open access: yesJournal of Science of the Gen. Tadeusz Kosciuszko Military Academy of Land Forces, 2017
The intense human activity determines the continuous development of systems and means of transport, which contributes to the intensification of existing road traffic risks and the emergence of new ones. Reduction in the number of fatalities of road accidents is dependent on investment in transport infrastructure, the development of safety sys-tems for ...
Jacek CABAN   +2 more
openaire   +1 more source

Learning the basics of a battery pack control system [PDF]

open access: yesE3S Web of Conferences, 2020
The article discusses the control system of a hydraulic power source of constant pressure, which is a pump-storage power source, equipped with the original design of the automatic unloading of the hydraulic pump, which provides relay switching of its ...
Kobzev Kirill   +2 more
doaj   +1 more source

Experimental study of two-way hydraulic percussion device operation in vibro-impact drilling in rocks

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract The authors describe the physical model of a hydraulic percussion device with frequency adjustment using standard flow rate controller and impact energy adjustment using an original throttle control of flow distribution, which allows dragging the hammering piston before its back run.
openaire   +1 more source

Hydraulic Modeling of a Mixed Water Level Control Hydromechanical Gate [PDF]

open access: yes, 2011
This article describes the hydraulic behavior of a mixed water level control hydromechanical gate present in several irrigation canals. The automatic gate is termed "mixed" because it can hold either the upstream water level or the downstream water level
Bos M.   +9 more
core   +4 more sources

Hydraulic Characterization of a Check Valve for Low-Pressure Potable Water Distribution Applications

open access: yesWater, 2023
The potable water in residential hydraulic networks is measured using volumetric meters. However, when the water carries air bubbles or pockets through the pipes, the accuracy of the meter readings is reduced, which can negatively impact the billing that
Javier Carpintero   +4 more
semanticscholar   +1 more source

OPTIMAL SYNTHESIS OF DRIVE SWING CONNECTIONS OF MOBILE CRANES HYDRAULIC MANIPULATING SYSTEMS

open access: yesЗаписки Горного института, 2018
The design, operation features and the optimal design method for the drive swing connections are considered. These are proposed as an alternative design variant of the articulation of adjacent links of hydraulic manipulation systems of mobile boom cranes
A. V. Lagerev, I. A. Lagerev
doaj   +1 more source

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