Results 91 to 100 of about 1,253,627 (291)
Small and Mid-Size Pump-Turbines with Variable Speed
, 2013 The stability of the grid is jeopardized with the large percentage of non-dispatchable renewables like wind power and also with increasing solar power.
J. Krenn, H. Keck, M. Sallaberger
semanticscholar +1 more source
Materials and Corrosion, EarlyView.A novel thick‐track electrical resistance probe with five sensing tracks was developed for offshore corrosion monitoring. The probe provides reliable, real‐time corrosion‐rate measurements in natural seawater. Corrosion‐rate trends showed strong agreement with weight‐loss coupon measurements.
Mohammad Hassanzadeh +5 more
wiley +1 more source
Performance Prediction of Centrifugal Norm Pumps Operating as Turbines
FluidsPump-as-turbines (PAT) has been widely used during the last decade as one of the most interesting technologies in the field of energy recovery. Many studies and papers have been published in which the performance of the pumps in the turbine operating ...
Jasmina Bogdanović-Jovanović +3 more
doaj +1 more source
Vibration Attenuation of Cantilever Beam Using Electromagnetic Delayed Feedback
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT This study presents a combined analytical and numerical investigation of a single‐input single‐output delayed feedback controller designed to suppress vibrations in a cantilever beam actuated by an electromagnet positioned beneath its free end. An analytical model was developed using the linearized equation of motion for a transversely excited
Mohammad Alabdullah, Khaled Alhazza
wiley +1 more source
Applied SciencesThis paper proposes an Adaptive Robust Control (ARC) strategy for pump-controlled pitch systems in large wind turbines to address challenges in control accuracy and energy efficiency.
Tiangui Zhang +7 more
doaj +1 more source
Torsional Vibrations at Guide-Vane Shaft of Pump–Turbine Model
Shock and Vibration, 1997 This article focuses on the problem of guide-vane vibrations of reversible pump–turbines, especially, in the pump mode. These vibrations are transmitted to the guide-vane shaft torque. The guide-vane vibrations are caused by the impeller exit flow, which
Andrej Predin
doaj +1 more source
Energy Conversion Alternatives Study (ECAS), General Electric Phase 1. Volume 2: Advanced Energy Conversion Systems. Part 2: Closed Turbine Cycles [PDF]
For abstract, see N76 ...
Brown, D. H. +2 more
core +1 more source
People and Nature, EarlyView.Abstract Debates abound regarding how to use land for nature recovery and environmental governance. Such decisions require an understanding of benefits and trade‐offs, and increasingly rely on vast quantities of data, delivered through digital technologies.
Lucy Jenner +3 more
wiley +1 more source
Вдосконалення робочого процесу гідротурбін та систем їх регулювання [PDF]
, 2019 The paper provides the detail analysis of the causes of various types of the vortex motion of the turbulent flow in the inlet parts of the turbine and in the inter-blade channels of the runner.
Gasiyk, Alexander +3 more
core +1 more source
Digital surveillance of animals and nature recovery
People and Nature, EarlyView.Abstract Digital surveillance technologies (DSTs) are widely applied in nature recovery for their potential to generate novel data on species and ecosystems through digital tracking, automation (e.g. from hazardous locations) and from newly recruited citizen scientists.
William M. Adams
wiley +1 more source