Results 51 to 60 of about 4,033,948 (250)

A numerical investigation of moment coefficient and flow structure in a rotor-stator cavity with rotor mounted bolts [PDF]

open access: yes, 2011
This paper presents a numerical study of the effect of rotor mounted bolts on the moment coefficient and flow structure within a rotor-stator cavity representative of modern gas turbine engine design.
Coren, D.   +3 more
core   +1 more source

Innovative Blade‐Structured Rotor Design for Enhanced Self‐Cooling in Permanent Magnet Machines

open access: yesIET Electric Power Applications, Volume 19, Issue 1, January/December 2025.
This paper proposes a novel self‐cooling solution for surface‐mounted permanent magnet machines using a blade‐structured rotor that draws cooling air through the machine during operation. The design effectively removes heat from critical components, such as end‐windings and magnets, without additional fans or wafters.
Kaile Li, Guang‐Jin Li
wiley   +1 more source

Efficient energy management measures in steel industry for economic utilization

open access: yesEnergy Reports, 2016
The application of energy efficient Induction Machines (IM) is explained in reference to power consumption savings. In energy efficient IM, losses for various Horse Power (HP) ratings are summarized for bringing effective changes in design.
Gurinderbir Singh Grewal   +1 more
doaj   +1 more source

Design and losses analysis of a high power density machine for flooded pump applications [PDF]

open access: yes, 2018
This paper describes the design process of a 10 kW 19000 rpm high power density surface mounted permanent magnet synchronous machine for a directly coupled pump application.
Al-Timimy, Ahmed   +8 more
core   +2 more sources

Forced Air‐Cooling of Modular Flux Switching PM Machines Using Flux Gaps as Cooling Channels

open access: yesIET Electric Power Applications, Volume 19, Issue 1, January/December 2025.
This paper investigates the thermal performance of modular flux‐switching permanent magnet (FSPM) machines under forced air cooling, highlighting the role of flux gaps between segmented stator cores as additional cooling channels. 3D CFD simulations and experiments show that a 4‐mm flux gap achieves optimal cooling under constant pressure loss, whereas
Guan‐Bo Zhang, Guang‐Jin Li
wiley   +1 more source

The Use of Gas Dynamics to Estimate the Influence of Flanges on Gear Windage Power Loss

open access: yesDynamics
This study aims to develop a new model for windage losses, building upon existing formulation, complemented by dedicated experimental campaigns and a specific methodology designed to isolate and quantify windage losses.
Thibaut Torres   +4 more
doaj   +1 more source

Transient Stability Improvement of Power System by Assigning Dynamic Converter Limits to Superconducting Magnetic Energy Storage

open access: yesIET Energy Systems Integration, Volume 7, Issue 1, January/December 2025.
ABSTRACT The virtual synchronous generator (VSG) concept is implemented to mimic the properties of synchronous generators and therefore improve the stability of modern power systems. Superconducting magnetic energy storage (SMES) is able to rapidly absorb power in the case of a fault and becomes completely charged due to capacity constraints.
Abdul Waheed Kumar   +2 more
wiley   +1 more source

Implementing Load‐Side Operating Energy Reserves to Improve System Frequency Control Amid the Expansion of Distributed Generation

open access: yesIET Smart Grid, Volume 8, Issue 1, January/December 2025.
This paper examines the implications of Eskom's, electricity utility of South Africa, move from centralised bulk electricity generation to a decentralised small‐scale generation model. Eskom's transition will significantly affect system frequency control, which endeavours to balance supply and demand by utilising energy reserves from traditional power ...
Dumisani Mtolo   +2 more
wiley   +1 more source

Performance and Loss Analysis of Squirrel Cage Induction Machine Based Flywheel Energy Storage System [PDF]

open access: yes, 2019
Flywheel energy storage systems (FESS) are one of the earliest forms of energy storage technologies with several benefits of long service time, high power density, low maintenance, and insensitivity to environmental conditions being important areas of ...
Breeze   +14 more
core   +1 more source

Reduction of losses in dual‐permanent‐magnet‐excited Vernier machine by segmented stator for electric aircraft

open access: yesIET Electric Power Applications, Volume 18, Issue 12, Page 1740-1751, December 2024.
The authors present a low‐loss dual‐permanent‐magnet‐excited vernier (DPMEV) machine with segmented stator design to meet the requirements of electric aircraft. Based on the field modulation theory, it can ensure that the segmented DPMEV machine reduces iron loss without sacrificing torque performance.
Jinghua Ji   +5 more
wiley   +1 more source

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