Results 111 to 120 of about 5,041 (207)
Steam Whip Phenomenon in Steam turbine [PDF]
, 2018 Case StudiesThis case study is designed to outline how the high vibration issue was successfully diagnosed, the root cause for the high vibration found and correction actions recommended.
Drygin, Sergey, Peton, Nicolas
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Modelling tidal current turbine wakes using a coupled RANS-BEMT approach as a tool for analysing power capture of arrays of turbines [PDF]
, 2011 The downstream evolution of the wake generated by a rotating tidal energy conversion device influences the performance of the device itself as well as the performance of any downstream device.
Phillips, Alexander B. +11 more
core +1 more source
Journal of Polymer Science, EarlyView.Hydrolytic aging in seawater produces markedly different mechanical responses among commercial Aramid fibers. While some fibers exhibit progressive degradation, others maintain stable or even improved tensile behavior. Experimental yarn‐scale testing combined with mathematical degradation modeling and Arrhenius‐based lifetime prediction provides new ...
Daniel Magalhães da Cruz +6 more
wiley +1 more source
PLANTS, PEOPLE, PLANET, EarlyView.The increasing demand for sustainable food production requires innovative solutions that balance productivity, resource efficiency, and environmental impact. Vertical Farming Systems (VFSs) offer a promising approach; however, their high energy consumption remains challenging.
Alessio Dessì +11 more
wiley +1 more source
CS23: Resolution of Steam Turbine High Vibration Due to Rotor Rub
, 2021 Case StudiesThis case study presents a high vibration trip incident experienced on a SP steam turbine which was overhauled, during re-start The machine tripped 3 times on high vibration just before 1st critical The problem was identified quickly through ...
Sing, Ng Wei
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Quarterly Journal of the Royal Meteorological Society, EarlyView.This study develops a method to identify the source areas of precipitation events, as illustrated for the western part of the Netherlands. Radar‐based precipitation data are traced back to their source areas and machine‐learning techniques are used to identify hypothesized causes: urban heat, surface roughness, and air pollution. We find that urban and
Jelmer van der Graaff +1 more
wiley +1 more source
Blade row interaction in radial turbomachines [PDF]
, 1999 A computational study has been performed to investigate the effects of blade row interaction on the performance of radial turbomachines, which was motivated by the need to improve our understanding of the blade row interaction phenomena for further ...
Sato, K., Sato, Kenji
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Systematic analysis on the energy loss in pump-turbines
Advances in Mechanical EngineeringThe pump-turbine is a key component in pumped-storage power stations, operating under complex conditions. RANS (Reynolds-Averaged Navier-Stokes) is commonly used for numerical simulations, but the differences among various RANS models under different ...
Miao Guo +5 more
doaj +1 more source
National Policy Coherence Counts for Reducing Inequality in Global Climate and Development Agendas
Sustainable Development, EarlyView.ABSTRACT International institutions promote policy coherence as crucial to the effective and fair implementation of global sustainability agendas, though the evidence for its benefits is slim. We present here the first systematic cross‐country dataset on the consequences of national government efforts to promote policy coherence for vulnerable groups ...
Katherine Browne +10 more
wiley +1 more source
Fast Transition between Operational Modes of a reversible Pump-Turbine [PDF]
, 2019 The future demands of energy production to balance more intermittent energy sources creates two main technical challenges for the hydro power production.
Svarstad, Magni Fjørtoft
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