Results 71 to 80 of about 628,564 (131)

The hydrodynamic and flow noise generation mechanisms of XLUUV based on a numerical comparative study

open access: yesApplied Ocean Research
As a key component of an underwater vehicle’s propulsion system, the pump-jet propulsor (PJP) performance is also strongly related to the hull wake. There are mainly rotating hulls represented by an idealized submarine (SUBOFF) and non-rotating hulls ...
Xing He   +5 more
doaj   +1 more source

Leakage flow simulation in a specific pump model [PDF]

open access: yes, 2014
This paper deals with the influence of leakage flow existing in SHF pump model on the analysis of internal flow behaviour inside the vane diffuser of the pump model performance using both experiments and calculations. PIV measurements have been performed
ROUSSETTE, Olivier   +6 more
core   +1 more source

Improving Mean Time Between Pump Failures [PDF]

open access: yes, 2018
Discussion GroupMechanical/Metallurgical design requirements for pump components Design and installation for pump baseplates Proper hydraulic fit of pumps Mechanical alignment targets/procedures Pump repair ...
Bruck, Morg   +3 more
core   +1 more source

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

Offline Chemical Wash for Internal Fouled Multistage Pump [PDF]

open access: yes, 2022
Case StudiesHigh pressure lean amine pump performance dropped within a span of about 1 month due to internal fouling. Fouling was caused by accumulation of iron sulphide.
Tinagaran, Ng, Wei Sing
core  

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

Centrifugal Pump Operation, Maintenance, and Reliability [PDF]

open access: yes, 2018
Discussion GroupRepair Specs, use, in house repair specs Lube oil storage and usage Mechanical seals and bearings issues Pump monitoring how are we doing this and how do we want to do this Craft training precision maintenance Best practices for pump
Gottlieb, Adam   +7 more
core   +1 more source

Investigating & Improving the Drooping Curve of A Two-Stage Feed Pump [PDF]

open access: yes, 2018
TutorialsA two-stage between-bearing pump of the upgraded material was supplied to replace the existing machine. The pump utilized a higher number of impeller blades to obtain higher efficiency at its design point, but exhibited a drooping head-flow ...
Tzuu Bin, Ng, Bin Ng, Tzuu
core  

Jet Pump [PDF]

open access: yes, 2013
In this Master Thesis jet pumps have been reviewed. Jet pumps are considered as a higher volume artificial lift method and operates by passing a high-pressure fluid jet through a venturi system.
Liknes, Fredrik
core   +1 more source

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