Results 21 to 30 of about 703,248 (356)

Cavitation–Silt Erosion Behavior and Failure Mechanism of an HVOF-Sprayed WC-Cr3C2-Ni Coating for Offshore Hydraulic Machinery

open access: yesJournal of Marine Science and Engineering, 2022
WC-Cr3C2-Ni coatings are a vital class of hard ceramic/cermet coatings with potential applications as wear-resistant materials. However, their erosion wear behavior in 3.5 wt.% sodium chloride medium (SCM) remains largely unexplored.
Jinran Lin   +6 more
semanticscholar   +1 more source

The Effect of Suction Side Tubercles on Torque Output of a Steam Turbine Low-Pressure Last Stage Blade

open access: yesEnergies, 2020
Flow separation and different kinds of stall flows occur under low load conditions for steam turbine last stage blades. In order to delay the flow separation and increase turbine power production, we applied suction side tubercles on steam turbine low ...
Jing Zhang   +5 more
doaj   +1 more source

Monitoring Pumping Units by Convolutional Neural Networks for Operating Point Estimations

open access: yesEnergies, 2023
To avoid the failure of pumping units, the monitoring of operating points with a subsequent assessment of the condition of the pump may support the decision for required maintenance.
Hanbing Ma   +2 more
doaj   +1 more source

Water and carbon footprints for Vidraru hydropower development, Romania [PDF]

open access: yesE3S Web of Conferences
Although the important positive effects that lakes have ondevelopment at the regional level and beyond, they also have a negativeimpact related to the large amounts of water that they can consume byevaporation.
Dumitran Gabriela-Elena   +5 more
doaj   +1 more source

Reducing environmental pollution caused by construction plant [PDF]

open access: yes, 2001
Quantifiable data produced in a national report by the Environment Agency of England and Wales entitled ‘Water pollution incidents in England and Wales 1997’ and published by the Stationery Office in 1998, identifies that of over 3,723 substantiated ...
Jackson, F, Morledge, R
core   +1 more source

Co-Simulation Platform for Simulating Heavy Mobile Machinery With Hydraulic Actuators and Various Hybrid Electric Powertrains

open access: yesIEEE Access, 2022
Computer simulations are important tools for evaluating hybrid electric powertrain concepts. In heavy mobile machinery, the powertrain undergoes traction and often hydraulic loads. The dynamic loads on hydraulic actuators of heavy mobile machinery can be
Giota Goswami   +3 more
semanticscholar   +1 more source

Integral and statistical characteristics of the turbulent swirl flow in a straight conical diffuser [PDF]

open access: yesTheoretical and Applied Mechanics, 2018
The results of the experimental investigations of the turbulent swirl flow in a straight conical diffuser with inlet diameter 0.4m and total divergence angle 8.6◦ are presented in this paper.
Ilić Dejan B.   +2 more
doaj   +1 more source

Systematic Comparison of Sensor Signals for Pump Operating Points Estimation Using Convolutional Neural Network

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2023
The head and flow rate of a pump characterize the pump performance, which help determine whether maintenance is needed. In the proposed method, instead of a traditional flowmeter and manometer, the operating points are identified using data collected ...
Hanbing Ma   +2 more
doaj   +1 more source

Influence of the boundary conditions on the natural frequencies of a Francis turbine [PDF]

open access: yes, 2016
Natural frequencies estimation of Francis turbines is of paramount importance in the stage of design in order to avoid vibration and resonance problems especially during transient events.
Bossio, Matias   +5 more
core   +1 more source

ENERGY EFFICIENT DRIVE SYSTEM WITH DIGITAL HYDRAULIC CYLINDER FOR CONSTRUCTION AND AGRICULTURAL MACHINERY

open access: yesINMATEH Agricultural Engineering, 2022
Given the need to reduce greenhouse gas emissions, new energy-efficient solutions can be adopted for construction and agricultural machinery. Such a solution is a digital hydraulic cylinder that uses several active areas and a constant pressure supply ...
R. Rădoi   +4 more
semanticscholar   +1 more source

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