Results 111 to 120 of about 182,554 (282)

Optimization of Aerodynamic Power of Three Wind Turbines in Turbulent Wind Farm

open access: yes南方能源建设
[Objective] In the context of global energy structure transformation and climate change response, wind energy, as one of the clean and renewable energy sources, the optimization of its utilization efficiency has become the focus of current research in ...
Kang CHEN, Weiyuan WANG, Jiahuang TU
doaj   +1 more source

Design and Optimization of a Novel Kalina‐Organic Rankine Cycle System Based on LNG Cold Energy Utilization

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study proposes a novel integrated system (SDKC‐DORC) that combines a split‐flow dual‐pressure Kalina cycle with a secondary organic Rankine cycle for the synergistic utilization of solar energy and liquefied natural gas (LNG) cold energy.
Ke Xiao   +6 more
wiley   +1 more source

Active optimization scheduling of wind farms based on wind turbine state evaluation

open access: yesMeasurement + Control
In response to the limited power operation mode of wind farms, an active power optimization scheduling method for wind farms is proposed based on the state evaluation of wind turbines. This method achieves optimal operational control of wind farms.
Jing Sun   +5 more
doaj   +1 more source

Effect of Temperature and Atmosphere on Agglomeration of Bed Particles in a Bubbling Fluidised Bed Burning Na‐Enriched Coal

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Agglomeration of bed materials during circulating fluidised bed (CFB) combustion or gasification of high‐alkali fuel is a practical challenge in industrial practice. This work investigates experimentally the effect of temperatures (700°C–900°C) and atmosphere (air equivalence ratios 1.61–0.53) on agglomeration in a lab‐scale bubbling fluidised
Zipeng Guo   +4 more
wiley   +1 more source

Predicting The Resale Asking Price Of Wind Turbines Using A ML Model Trained On Data From An Online Resale Platform

open access: yesProceedings of the Conference on Production Systems and Logistics
Around half of the currently 30,000 active wind turbines in Germany will reach the end of their service life by 2030, which is generally defined by the manufacturer as 20 years of operation.
Landwehr, Roman   +3 more
doaj   +1 more source

Windkracht 13 [PDF]

open access: yes, 2013
The so-called 20/20/20 goals of the European Union are key measures in the context of the sustainable development policy of the EU. The highest potential for emission reductions is present in the electricity sector.
Van Ackere, Samuel   +3 more
core   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

open access: yesThe Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo   +5 more
wiley   +1 more source

Life cycle assessment of biodiesel synthesis from waste cooking oil using bifunctional heterogeneous catalyst

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract The development of renewable energy sources is important in order to achieve the United Nations Sustainable Development Goals (SDGs). Waste cooking oil (WCO) is a promising feedstock for biodiesel production through transesterification. Heterogeneous bifunctional catalysts offer a sustainable alternative to conventional homogeneous bases such ...
Frederick Jit Fook Phang   +9 more
wiley   +1 more source

Research on the Power Output of Different Floating Wind Farms Considering the Wake Effect

open access: yesJournal of Marine Science and Engineering
For floating wind turbines, one of the most interesting and challenging issues is that the movement of the rotor is strongly related to its floating platform, which results in corresponding variations in the wake characteristics of the turbine.
Jiaping Cui   +6 more
doaj   +1 more source

How the factoid of wind turbines causing ‘vibroacoustic disease’ came to be ‘irrefutably demonstrated’

open access: yesAustralian and New Zealand Journal of Public Health, 2013
Objective : In recent years, claims have proliferated in cyberspace that wind turbines cause a large variety of symptoms and diseases. One of these, “vibroacoustic disease” (VAD) is frequently mentioned. The aim of this study is to examine the quality of
Simon Chapman, Alexis St George
doaj   +1 more source

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