Results 21 to 30 of about 682,069 (145)

Application of Constant Rate of Velocity or Pressure Change Method to Improve Annular Jet Pump Performance

open access: yesInternational Journal of Fluid Machinery and Systems, 2013
Xuelong Yang, Xinping Long, Yong Kang
exaly   +3 more sources

Fundamentals of Centrifugal Pump and System Interaction [PDF]

open access: yes, 2011
Short CoursePumps are an integral part of your industry, yet engineers, operators, and maintenance technicians are seldom fully trained to handle the pump problems they encounter daily.
Volk, Michael, Volk, Mike
core   +1 more source

Optimum time to refurbish a boiler feed pump at Eskom's power stations [PDF]

open access: yes, 2014
A key focus area in power generation today is to improve equipment and plant efficiency, with this study specifically aimed to determine the optimum time to refurbish a boiler feed pump by analysing the internal wear of the annular seals. The boiler feed
Mortlock, Steven Peter
core   +1 more source

Numerical Prediction of Performance of Annular-Type Jet Pump.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1997
Jet pumps are used in a great number of engineering applications. However, no numerical method for determining the performance has been established yet. In the present study, focusing on turbulence models, a numerical method for predicting the performance of an annular-type jet pump is investigated. The flow fields are simulated by solving Reynolds and
NAMIKI, Norikazu   +2 more
openaire   +2 more sources

Measurement And Prediction Of Full Scale Annular Seal Coefficients

open access: yes, 1991
Lecturepg. 71The accurate prediction of rotordynamic behavior of centrifugal pumps has increased in importance over the last decade, with a steady increase in speed and power concentration.
McCloskey, Thomas, Florjancic, Stefan
core   +1 more source

Turbulence modelling for RANS CFD analyses of multi-nozzle annular jet pump swirling flows [PDF]

open access: yesInternational Journal of Heat and Fluid Flow, 2020
Abstract This study focusses on the fluid mechanic analysis and performance assessment of a one-phase swirling flow multi-nozzle annular jet pump using Reynolds-averaged Navier–Stokes simulations and experimental measurements carried out with a bespoke test rig.
Morrall, Andrew   +2 more
openaire   +1 more source

Operating Conditions of Floating Ring Annular Seals [PDF]

open access: yes, 2018
Technical BriefsFloating ring annular seals are used when large radial rotor displacements must be accommodated. They belong to a larger family of sealing devices that includes face seals and segmented seals.
Arghir, Mihai, Mariot, Antoine
core   +2 more sources

Abrasive Wear In Pumps - A Tribometric Approach To Improve Pump Life

open access: yes, 1996
Tutorialpg. 143The reduction of abrasive wear and extension of the endurance of pumps requires a system analysis. Various pump types demonstrate different tribological systems under abrasive wear, which are basically dominated by sliding, jet, and ...
Wirth, Wolfgang   +2 more
core   +1 more source

Validation Of Numerical Procedure For Assessment Of Centrifugal Pump Cavitation Erosion [PDF]

open access: yes, 2009
LectureThis paper presents validation of a novel method for assessment of the centrifugal pump cavitation erosion with two configurations of a model feed centrifugal pump: with thru shaft, and Cantilever impeller.
Timouchev, Serguei F.   +3 more
core   +1 more source

The importance of the knowledge of flow stream in water sump pump [PDF]

open access: yes, 2013
Numerous different experimental and numerical methods have been developed and are already improved in order to get rather good flow descriptions inside pump components. These calculations are generally realized assuming uniform and steady flow conditions,
SIMONET, Sophie   +3 more
core  

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