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Thermodynamic energy conversion efficiencies
Journal of Applied Physics, 1980Much recent work on thermodynamic energy conversion efficiencies is here presented ab initio and from a unified point of view. New considerations are offered and previous work is analyzed in light of the unified presentation. The energy conversion processes discussed include, for example, the conversion into light in a laser or light-emitting diode and
P. T. Landsberg, G. Tonge
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Energy Conversion Efficiency in Nanotube Optoelectronics
Nano Letters, 2005We present theoretical performance estimates for nanotube optoelectronic devices under bias. Current-voltage characteristics of illuminated nanotube p-n junctions are calculated using a self-consistent nonequilibrium Green's function approach. Energy conversion rates reaching tens of percent are predicted for incident photon energies near the band gap ...
Derek A, Stewart, François, Léonard
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Energy Conversion Efficiencies
2012Efficiency is a measure of the true effectiveness or performance of a system or a process. It may take different forms but it can generally be defined as the desired output over the required input. Energy conversion efficiency refers to an efficiency definition for a device for which one form of energy is converted to another form.
Mehmet Kanoğlu +2 more
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Solar Energy Conversion Efficiency Project
1989Report of a discussion on possible collaborative experimentation to test and refine biomass production models based on the conversion of solar energy by plant stands, and to evaluate alternative models.
J. S. Pereira, J. J. Landsberg
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Wind Energy Conversion Efficiency Limit
Wind Engineering, 2006The momentum analysis of Sharpe [3] is considered further. It is shown that the maximum wind energy conversion efficiency limit, or the Betz limit of 59.3%, deduced from conventional actuator disc theory is the limiting stationary maximum value as wind turbine rotor speed approaches infinity and rotor outlet swirl approaches zero.
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Efficient solar energy conversion with CuInS2
Nature, 1986The high absorptivity associated with a direct energy gap in the optimum range for solar-energy conversion makes CuInS2 a particularly promising material for efficient solar-energy conversion1. Achieved solar-to-electrical conversion efficiencies have been limited to ∼6% (refs 2–8).
H. J. Lewerenz +3 more
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High Energy Conversion Efficiency in Nanofluidic Channels
Nano Letters, 2012It is proposed that the layering of large ions at the wall/liquid interface of nanofluidic channels can be used to achieve high efficiency (possibly >50%) in the conversion of hydrostatic energy into electrical power. Large ions tend to produce peaks and troughs in their concentration profiles at charged walls, producing high concentrations far from ...
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Energy Efficiency and Conversion
Abstract:The increase demand of energy is due to advance technology and appliances. However, fossil fuel-sourced energy is harmful for environment. Green energy is an alternative to curbing the energy demand. Photovoltaic cells, hydro turbines, and fuel cells are the most efficient sources of green energy. Fuel cells have been modified to utilize fuelsShabbir, Safoora +3 more
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Energy Conversion Efficiency of High-Order Raman Soliton
Optica Advanced Photonics Congress 2022, 2022We predict analytically the energy conversion efficiency from the fission of a high-order soliton into fundamental solitons. Taking inter-pulse Raman gain into account, this prediction adds precision to the inverse scattering method prediction.
Robi Kormokar, Martin Rochette
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