Results 41 to 50 of about 19,891 (308)
Production system and method for producing fluids from a well [PDF]
, 2004 A production system and method for producing fluids from a well are presented. The production system may include a submersible pump and a jet pump. The submersible pump may be arranged within the well.
Carvalho, Paulo M. +2 more
core +1 more source
Development of a trench cutting re-mixing deep wall method model test device [PDF]
, 2020 The trench cutting re-mixing deep wall (TRD) is a new type of underground waterproof curtain. Mixing uniformity is the key index affecting the efficiency and quality of this method.
Bezuijen, Adam +5 more
core +2 more sources
Performance analysis of variable speed multiphase induction motor with pole phase modulation
Archives of Electrical Engineering, 2016 The pole phase modulation (PPM) technique is an effective method to extend speed range and torque capabilities for an integrated starter and hybrid electric vehicles applications.
Liu Huijuan, Wang Jun, Zhang Zhenyang
doaj +1 more source
Applied Sciences, 2020 This paper aims to develop an innovative sensorless control approach for a five-phase induction motor (IM) drive. The operation principle of the sensorless scheme is based on the sliding mode theory, within which a sliding mode observer (SMO) estimates ...
Mahmoud A. Mossa +4 more
doaj +1 more source
A volume-preserving sharpening approach for the propagation of sharp phase boundaries in multiphase lattice Boltzmann simulations [PDF]
, 2010 Lattice Boltzmann models that recover a macroscopic description of multiphase flow of immiscible liquids typically represent the boundaries between phases using a scalar function, the phase field, that varies smoothly over several grid points.
Dellar, P. J., Reis, T.
core +2 more sources
Energies, 2015 The flux-switching permanent-magnet (FSPM) motor has been viewed as a highly reliable machine with both armature windings and magnets on the stator. Owing to the high torque-production capability with low torque ripple, FSPM motors with a higher number ...
Feng Yu +3 more
doaj +1 more source
Non‐linear model of the switched reluctance motor with included core losses’ effects
IET Electric Power Applications, 2021 To accurately predict motor performance, considering the effects of core losses is of great importance, especially at speeds much higher than the base where the core losses represent a considerable portion of the total drive losses.
Dragan S. Mihic +2 more
doaj +1 more source
Production system and method for producing fluids from a well [PDF]
, 2002 A production system and method for producing fluids from a well are presented. The production system may include a submersible pump and a jet pump. The submersible pump may be arranged within the well.
Carvalho, Paulo M. +2 more
core +1 more source
Advanced Engineering Materials, EarlyView.High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé +5 more
wiley +1 more source
Mokslas: Lietuvos Ateitis, 2012 The article considers the areas of applying multiphase induction motors. Their advantages against three phase motors have become the main reason for employing them in multiphase drives.
Benas Kundrotas
doaj +1 more source