Results 11 to 20 of about 992,076 (345)

Energy conversion in isothermal nonlinear irreversible processes – struggling for higher efficiency [PDF]

open access: green, 2017
First we discuss some early work of Ulrike Feudel on structure formation in nonlinear reactions including ions and the efficiency of the conversion of chemical into electrical energy.
W. Ebeling, Rainer Feistel
openalex   +3 more sources

Energy conversion and efficiency in turboshaft engines [PDF]

open access: yesE3S Web of Conferences, 2019
This paper discusses the methods of energy conversion in a turboshaft engine. Those methods cover the thermodynamic cycle and the engine performances, the possible energy sources and their impact on environment as well as the optimal solutions for ...
Dobromirescu Cristian, Vilag Valeriu
doaj   +1 more source

Structural design of multi-body heave wave energy conversion system and analysis of energy efficiency of floating body on water surface [PDF]

open access: yesMechanical Sciences, 2022
Due to the defects of the internal structure and energy supply carrier, conventional deep sea unoccupied marine equipment cannot meet the requirements of low power consumption.
D. Cong   +6 more
doaj   +1 more source

CuInSe2 nanotube arrays for efficient solar energy conversion [PDF]

open access: yesScientific Reports, 2019
AbstractHighly uniform and vertically aligned p-type CuInSe2 (CISe) nanotube arrays were fabricated through a unique protocol, incorporating confined electrodeposition on lithographically patterned nanoelectrodes. This protocol can be readily adapted to fabricate nanotube arrays of other photoabsorber and functional materials with precisely ...
Wipula Priya Rasika Liyanage   +1 more
openaire   +2 more sources

Heat absorption properties of ground material for solar chimney power plants [PDF]

open access: yes, 2016
One of the major challenges to the widespread application of the solar chimney power plant is its low-power conversion efficiency because of the three technological processes involved.
Al-Azawiey, S. S., Hassan, S. B.
core   +1 more source

Economic design of artificial lighting plant factory based on biomass conversion efficiency of Okhotsk vegetables

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Since plants with a high biomass conversion efficiency of light energy consume less energy and require shorter cultivation periods, it is expected that plant factories can have more output with less energy.
Ryota YORIFUJI, Shin’ya OBARA
doaj   +1 more source

Technical limits for energy conversion efficiency [PDF]

open access: yesEnergy, 2020
To reach climate targets, unprecedented levels of energy efficiency improvements are required. To prioritise investments, it is necessary to know the energy saving potential associated with each action. Understanding the potential of technical improvements, requires knowledge on the highest technically achievable efficiency of a technology – the ...
Leonardo Paoli, Jonathan Cullen
openaire   +2 more sources

Exceeding the solar cell Shockley-Queisser limit via thermal up-conversion of low-energy photons [PDF]

open access: yes, 2013
Maximum efficiency of ideal single-junction photovoltaic (PV) cells is limited to 33% (for one sun illumination) by intrinsic losses such as band edge thermalization, radiative recombination, and inability to absorb below-bandgap photons.
Boriskina, Svetlana V., Chen, Gang
core   +2 more sources

Energy conversion efficiency of electrical exploding foil accelerators

open access: yesAIP Advances, 2021
We evaluate the energy conversion efficiency of an electrical exploding foil accelerator that accelerates a thin dielectric foil (called the flyer) to more than 1 km/s, which is propelled by electrically exploded bridge material. The effective flyer mass
D. Ichihara   +3 more
doaj   +1 more source

Research status of replacement gases for SF6 in power industry

open access: yesAIP Advances, 2020
SF6 is widely used in the industrial field due to its stable structure and excellent properties. It is mainly used in electrical insulation equipment. Due to the boiling point of SF6, its use in extremely cold regions has been limited.
Shuangshuang Tian   +7 more
doaj   +1 more source

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