Results 41 to 50 of about 6,741 (99)

Proposed methodology for online frequency response analysis based on magnetic coupling to detect winding deformations in transformers

open access: yesHigh Voltage, 2019
Frequency response analysis is widely used as a method for the offline diagnosis of winding deformations in power transformers. To apply it to a working transformer, people need to determine how to inject the excitation signal and measure the response ...
Yangchun Cheng   +7 more
doaj   +1 more source

Modeling and performance analysis of a new integrated solid oxide fuel cell and photovoltaic‐thermal energy supply system by heat current method

open access: yesEnergy Science & Engineering
Efficient and reliable utilization of renewable energy at the user's end is the key to achieving a low‐carbon life. This paper proposed a new distributed energy system around the comprehensive utilization of solar energy by integrating solid oxide fuel ...
Xingce Wang   +7 more
doaj   +1 more source

Superheated steam in the power station [PDF]

open access: yesJournal of the Franklin Institute, 1906
n ...
openaire   +3 more sources

Assembling a Nanomolecular Power Station [PDF]

open access: yesThe Plant Cell, 2018
The ATP synthase complex of chloroplasts is an elegant example of the union of structure and function at the molecular level ([Junge and Nelson, 2015][1]). This enzyme complex consists of an integral membrane CFo component that transports protons plus an extrinsic CF1 component that synthesizes ...
openaire   +3 more sources

Structural and parametric synthesis of anti-average control algorithms for realizing adaptive frequency operating automaticselectrotechnical systems

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2019
In the event of accidents in power systems associated with a reduction in frequency in order to prevent the complete repayment of the energy district and accelerate the elimination of the accident, frequency division automatics (FDA) are used.
V. R. Ivanovа   +2 more
doaj   +1 more source

An improved opportunistic group replacement maintenance strategy for wind turbines

open access: yesEnergy Science & Engineering, 2020
In traditional opportunistic group replacement maintenance (OGRM) strategy for wind turbines, the reliability thresholds of different subassemblies are set the same and its two‐step optimization for maintenance cost is diseconomy.
Zhiyong Ma   +4 more
doaj   +1 more source

Distribution of Polychlorinated biphenyls in Environmental samples from an electrical power station in Lagos, Nigeria

open access: yesJournal of Taibah University for Science, 2018
Concentration levels of 12 PCB congeners (PCB-18, 28, 31, 44, 52, 101, 153, 118, 138, 149, 180 and 194) were determined in soil, dust, sediment and water samples collected at Ijora Olopa Power Station, Lagos, Nigeria.
Bilikis Temitope Folarin   +4 more
doaj   +1 more source

Engineering Application and Demonstration of Control System for IGCC Power Station

open access: yesZhongguo dianli, 2019
Taking an IGCC power station in China as the research object, based on its operation behavior and control requirements, the design of the coordinated control system and its composition , the load command , as well as the control strategy of the ...
Jianzhao WANG   +3 more
doaj   +1 more source

Integrated Modeling and Optimal Operation Strategy of Building Cooling System Combining the Standardized Thermal Resistance and Genetic Algorithm

open access: yesEnergy Science & Engineering
Integrated modeling and operation optimization of building energy systems is significant for improving the energy utilization efficiency and reducing carbon emission.
Liang Tian   +5 more
doaj   +1 more source

The Great London Power Station [PDF]

open access: yesScientific American, 1904
n ...
openaire   +2 more sources

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