Results 91 to 100 of about 6,081 (269)
Decentralized Wind Energy Systems as Catalysts for Urban Resilience: A Design Framework
Energy Science &Engineering, EarlyView.ABSTRACT Confronting the escalating extreme weather events (EWEs) and intensifying winds, this study proposes an active response to these issues by exploring decentralized wind energy production for Peng Chau Island, Hong Kong. It integrates theoretical perspectives on energy democracy—empowering local communities through energy autonomy—and urban ...
Tian Cheng
wiley +1 more source
Condition monitoring of pump-turbines
, 2014 At present, new renewables like wind, solar and marine energy are having a strong development. The generation of energy by renewables has the disadvantage that it depends on atmospheric conditions. It means that they can generate energy at any moment independently if this energy is required or not by the consumers.
Valero Ferrando, Ma. del Carmen +1 more
openaire +1 more source
'Neo-Suterian' pump-turbine characteristics and their benefits [PDF]
IOP Conference Series: Earth and Environmental Science, 2010 Conventional representations of the various operation modes of a pump-turbine (4-quadrant characteristics) have important disadvantages. While curves of Q11 vs n11 have singularities at E=0 and multiple values in the 'unstable' ranges, the curves EnD(QnD) get singular at n=0.
openaire +1 more source
Energy Science &Engineering, EarlyView.Based on entropy theory, this study presents a comparative numerical analysis of the flow energy dissipation (FED) in a VTSP under two distinct operating conditions: pump condition and turbine condition, both characterized by relatively high hydraulic efficiencies of 88.9% and 87.4%, respectively. In pump condition, the highest FED production occurs in
S. Liu +5 more
wiley +1 more source
Response characteristics of ship steam power system under switchover of turbine feed water pump
Zhongguo Jianchuan Yanjiu[Objectives] The switching performance of turbine feed water pump is a key technical indicator to decide the operation stability of ship steam power system, and it is of great significance to the safety of navigation.[Methods] Using the Modular Modeling ...
Yang Yuanlong +4 more
doaj +1 more source
Energy Science &Engineering, EarlyView.Digital Twin (DT) technology enhances building energy efficiency by enabling continuous monitoring, predictive maintenance, and operational optimization within Building Energy Management Systems. Through real‐time data integration and simulation, DTs provide dynamic feedback loops that optimize performance, reduce operational costs, and improve ...
Suqi Wang +6 more
wiley +1 more source
Journal of Sustainable Development of Energy, Water and Environment Systems, 2018 A combined method using statistical and numerical models has been developed by the authors for selecting a pump running as turbine to be applied in micro-hydro plants.
Silvio Barbarelli +2 more
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New features and applications of PRESTO, a computer code for the performance of regenerative, superheated steam turbine cycles [PDF]
The code was designed to analyze performance at valves-wide-open design flow. The code can model conventional steam cycles as well as cycles that include such special features as process steam extraction and induction and feedwater heating by external ...
Choo, Y. K., Staiger, P. J.
core +1 more source
Energy Science &Engineering, EarlyView.This article introduces an operation strategy utilizing a hydrogen and biomass collaborative energy storage to regulate the power supply and demand. The results show that the system achieves annual average energy and exergy efficiencies of 87.77% and 67.16%, respectively.
Kai Ding, Ximin Cao, Yanchi Zhang
wiley +1 more source
Development and Numerical Performance Analysis of a Pump Directly Driven by a Hydrokinetic Turbine
Energies, 2019 Marine and hydrokinetics (MHK) represent an emerging industry with hundreds of potentially viable technologies, such as potential extractable energy from plain area rivers where the water level differences are very small and the traditional water turbine
Daqing Zhou +5 more
doaj +1 more source