Results 51 to 60 of about 655,526 (298)

UNSTEADY VELOCITY PIV MEASUREMENTS AND 3D NUMERICAL CALCULATION COMPATISONS INSIDE THE IMPELLER OF A RADIAL PUMP MODEL [PDF]

open access: yes, 2013
PIV measurements were performed at mid hub section inside the impeller of a vaned diffuser pump model working with air. Several previous papers have already presented part of impeller flow characteristics mainly for vaneless diffuser and near nominal ...
PAVESI, Giorgio   +5 more
core  

Pump Vibrations

open access: yes, 1992
Tutorialpg. 137The reliability and failure mechanisms of high energy pumps used in the utilities industry and the high suction specific speed pumps used in the hydrocarbon processing industry show surprising parallels as to root causes.
Nelson, William E.
core   +1 more source

Thunder Horse Injection Pump [PDF]

open access: yes, 2003
Lecturepg. 1For the Thunder Horse oil field, injection pressures above 550 bar (8000 psi) are required. The highest injection pressures realized up to now with centrifugal pumps were around 350 bar (5100 psi).
Lienau, Wolfram   +5 more
core   +1 more source

Nonplanar Bouligand Architectures for Enhanced Mechanical Performance in Cementitious Composites

open access: yesAdvanced Materials, EarlyView.
Inspired by the impact region of the Mantis shrimp dactyl club, nonplanar additive manufacturing translates sinusoidal Bouligand architectures into cementitious composites. Printing‐induced anisotropy and architected interfaces promote distributed damage and arrest crack propagation, enhancing strength and energy absorption.
Yu Wang   +7 more
wiley   +1 more source

Thermoplastic Dielectric Coatings for Flexible Electrodynamic Dust Shields: Structural and Functional Performance

open access: yesAdvanced Materials Interfaces, EarlyView.
Thermoplastic attachment is introduced as a scalable surface coating strategy to improve the durability and dielectric reliability of flexible electrodynamic dust shields. By embedding chemically modified reduced graphene oxide (CMrGO) electrodes within thermoplastic laminates, mechanical degradation, abrasion damage, and vacuum‐induced electrical ...
Ide E. Onal   +6 more
wiley   +1 more source

Design of Delivery Valve for Hydraulic Pumps [PDF]

open access: yesMachines, 2018
After briefly recalling the main problems that arise in the study of globe valves for alternative pumps, a methodology has been set up in order to refine the design. The obtained method has the advantages of simplicity and independence from empirical diagrams. In summary, from the obtained equation, the suitable values of the parameters can be deduced,
Andrea Formato   +5 more
openaire   +4 more sources

Smart Electrospun Nanofibers for Controlled Oil‐Water Separation

open access: yesAdvanced Materials Interfaces, EarlyView.
Stimuli‐responsive electrospun nanofibers are reviewed as advanced platforms for controlled oil/water separation. The effects of surface wettability, porous structure, and external stimuli, including pH, temperature, gas, and light, on separation performance are discussed.
Aynaz Sedaghatnia   +6 more
wiley   +1 more source

Vibrations of hydraulic pump and their solution

open access: yesEPJ Web of Conferences, 2017
The vibrations of hydraulic pump and connected pipeline system are very problematic and often hardly soluble. The high pressure pulsations of hydraulic pump with the double suction inlet are investigated.
Dobšáková Lenka   +4 more
doaj   +1 more source

Study of energetic balance of the hydraulic system with fixed displacement pump and pressure relief valve

open access: yesMechanics and Advanced Technologies, 2017
It was analyzed the basic schematics implementing energy level of industrial hydraulic systems. It was considered the structure and composition of the hardware system of fixed displacement pump and pressure relief valve with manual control.
О. Levchenko
doaj   +1 more source

Critical Hydraulic Eccentricity Estimation in Vertical Turbine Pump Impeller to Control Vibration

open access: yesInternational Journal of Rotating Machinery, 2021
In many applications, pumps are tested against standard specifications to define the maximum allowable vibration amplitude limits of a pump. It is essential to identify the causes of vibration and methods to attenuate the same to ensure the safe and ...
Ravindra S. Birajdar   +2 more
doaj   +1 more source

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