Results 171 to 180 of about 6,045 (208)
MPPT control of a solar pumping system based five-phase impedance source inverter fed induction motor. [PDF]
PLoS OneHassan AM +5 more
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Calculating Windage Losses: A Review
Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, 2022Abstract Windage is the effect of aerodynamic drag on the surfaces of a rotating system due to fluid shear effects. The fluid-friction losses that occur on the rotor of rotating machines often constitute a non-negligible drag on the system that must be estimated for proper sizing of the driving or driven element.
Fernando Karg Bulnes +2 more
openaire +1 more source
Journal of Mechanical Design, 2008
The efficiency of power and propulsive systems is increasingly being targeted as a means of reducing environmental impact. This has caused a renewed interest in industry in the losses associated with meshing gears. Gearbox efficiency varies from 98% to 99% for the best designed high power applications, but that can still equate to losses in megawatts ...
Carol N. Eastwick, Graham Johnson
openaire +1 more source
The efficiency of power and propulsive systems is increasingly being targeted as a means of reducing environmental impact. This has caused a renewed interest in industry in the losses associated with meshing gears. Gearbox efficiency varies from 98% to 99% for the best designed high power applications, but that can still equate to losses in megawatts ...
Carol N. Eastwick, Graham Johnson
openaire +1 more source
2017
Rotary mirror scanners are often purchased as "standard" motorized spindles to whose shafts a range of mirror-faceted polygons can be fixed. This approach usually offers low unit costs and has proved satisfactory for many optical scanning systems, but for more exacting requirements these units can be wasteful of energy or space or can have inadequate ...
Anthony Lawler, Joseph Shepherd
openaire +2 more sources
Rotary mirror scanners are often purchased as "standard" motorized spindles to whose shafts a range of mirror-faceted polygons can be fixed. This approach usually offers low unit costs and has proved satisfactory for many optical scanning systems, but for more exacting requirements these units can be wasteful of energy or space or can have inadequate ...
Anthony Lawler, Joseph Shepherd
openaire +2 more sources
Windage Heating in a Shrouded Rotor-Stator System
Journal of Engineering for Gas Turbines and Power, 2014This paper has experimentally and numerically studied the windage heating in a shrouded rotor-stator disk system with superimposed flow. Temperature rise in the radius direction on the rotating disk is linked to the viscous heating process when cooling air flows through the rotating component.
Zhi, Tao +4 more
openaire +2 more sources
Method for Quick Prediction of Windage Power Loss
2014 Conference on Information Storage and Processing Systems, 2014This work introduces a method by using an empirical formula to quickly predict windage caused power loss of hard disk drives. The results obtained by the empirical formula are compared with those obtained by computational fluid dynamics (CFD) simulations and validated by the experimental measurement data.
Q. D. Zhang +3 more
openaire +1 more source
Windage and Churning Effects in Dipped Lubrication
Journal of Tribology, 2014In dipped (splash) lubrication, a rotating component, such as a gear, is partly submerged in a reservoir of liquid lubricant and acts to distribute it within the lubricated machine. Dipped lubrication is widely used for low to medium speed applications in the industrial and automotive sectors and there is a significant interest in the associated energy
Anant S. Kolekar +3 more
openaire +1 more source
Windage Power Loss of High-Speed Generators
Advanced Energy Systems, 1997Abstract Direct-drive electromachines that are designed to operate at higher rotating speeds will have a windage drag that is a more significant loss factor; this loss will require greater attention in the initial machine design. Switched-reluctance machines with poled rotors can further increase windage by fluid pumping and mixing ...
Edward B. Durkin, John J. Schauer
openaire +1 more source
Windage Tray Design Comparison Using Crankcase Breathing Simulation
SAE Technical Paper Series, 2013<div class="section abstract"><div class="htmlview paragraph">The conflicting requirements of better fuel economy, higher performance and lower emissions from an automobile engine have brought many new challenges that require development teams to look beyond conventional test and seek answers from simulations.
Owais Iqbal, Kunal Arora
openaire +1 more source