Results 111 to 120 of about 68,067 (337)
Energy Science &Engineering, EarlyView.Approximately 64% of the population in sub‐Saharan Africa lacks access to electricity, despite the region's high solar potential, making concentrated solar power a promising solution for decentralized and sustainable energy supply. This study presents the design, construction, and testing of a parabolic solar concentrator with two focal‐point receivers
Sani Dan Nomao Harouna +6 more
wiley +1 more source
Active clearance control system for a turbomachine [PDF]
, 1982 An axial compressor is provided with a cooling air manifold surrounding a portion of the shroud, and means for bleeding air from the compressor to the manifold for selectively flowing it in a modulating manner axially along the outer side of the stator ...
Coulson, C. E. +2 more
core +1 more source
Robust Control Using a Matrix Converter to Enhance Wind Turbine Systems
Energy Science &Engineering, EarlyView.This study uses a more efficient and effective solution to improve the operational performance of a wind turbine‐based power system. This system uses a doubly fed induction generator and relies on a matrix converter and fractional‐order proportional–integral controller.
Sihem Ghoudelbourk +4 more
wiley +1 more source
COMPARISON OF TOTAL PRESSURE FLUCTUATIONS IN STEAM TURBINE STAGES WITH DIFFERENT DEGREE OF REACTION
Acta Polytechnica CTU Proceedings, 2018 The contribution deals with analysis of unsteady pressure measurement in one and half axial turbine stages. The measurement was performed in VZLU air test turbine.
Tomáš Jelínek +2 more
doaj +1 more source
Future in Educational Research, EarlyView.ABSTRACT The aim of this study is to examine the effect of participation in the virtual reality‐based environmental education (VRBEE) program on the creative problem‐solving (CPS) skills of middle school students in Turkey. The research was conducted with 125 students from a public middle school, and their CPS skills were assessed using a pre‐test–post‐
Fatih Pala
wiley +1 more source
Research on the Axial Force of Conical-Rotor Permanent Magnet Synchronous Motors with Turbines
Energies, 2018 The general method to suppress the axial force of the permanent magnet synchronous motor (PMSM) direct-drive turbine is to increase the number of balance devices, such as balance disks and special bearings, to counteract its influence, but this also ...
Jiabao Wang +3 more
doaj +1 more source
Field Telemetry of Blade-rotor Coupled Torsional Vibration at Matuura Power Station Number 1 Unit [PDF]
, 1991 The quasi-modal reduction technique and finite element model (FEM) were used to construct an analytical model for the blade-rotor coupled torsional vibration of a steam turbine generator of the Matuura Power Station.
Isii, Kuniyoshi +3 more
core +1 more source
Second‐Order Between‐Supplier Learning
Journal of Operations Management, EarlyView.ABSTRACT Substantial empirical evidence shows that suppliers in emerging economies can enhance their technological capabilities through direct learning from technologically advanced foreign competitors. However, suppliers in emerging markets may struggle to learn directly from knowledge about competitors’ products that are not widely available on the ...
Lisha Liu, Xianwei Shi, Guangzhi Shang
wiley +1 more source
Modeling analysis of the mean flow velocity ahead of a rotating tidal turbine
International Marine Energy JournalThis paper presents a novel method for modeling the mean radial velocity component ahead of a rotating tidal turbine. Firstly, it examines a recent hybrid model designed to reconstruct the three-dimensional mean axial flow field in front of an ...
Philippe Druault +1 more
doaj +1 more source
Experimental Investigation of Rotor-Stator Interaction in Axial-Flow Turbines and Compressors
International Journal of Rotating Machinery, 1998 Detailed results of unsteady flow measurements in a stator-rotor-stator assembly of an axial-flow turbine as well as an inlet guide vane-rotor-stator formation of an axial-flow compressor are presented in this paper.
Heinz E. Gallus
doaj +1 more source