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Mostrando ítems 231-240 de 446
Artículo
Data from Experimental Analysis of the Performance and Load Cycling of a Polymer Electrolyte Membrane Fuel Cell
(MDPI, 2020-05)
Fuel cells are electrochemical devices that convert the chemical energy stored in fuels (hydrogen for polymer electrolyte membrane (PEM) fuel cells) directly into electricity with high e ciency. Fuel cells are already ...
Artículo
Modeling, Simulation and Optimal Operation of Multi-Extraction Packed-Bed Thermal Storage Systems
(MDPI, 2020-05)
Solar thermal power technologies require storage systems to mitigate the natural variability of solar irradiation. Packed bed thermal storage systems (PBTES) offer a cost-effective solution using air as heat transfer ...
Ponencia
Hydrogen as energy storage for wind energy
(International Society of Electrochemisty, 2008)
Nowadays, problems associated with greenhouse gases emission and fuel ending, makes that renewable energy sources and hydrogen technology have high interest for governments and researchers, and become an option for an ...
Artículo
Artificial neural networks and physical modeling for determination of baseline consumption of CHP plants
(Elsevier, 2014)
An effective modeling technique is proposed for determining baseline energy consumption in the industry. A CHP plant is considered in the study that was subjected to a retrofit, which consisted of the implementation of ...
Artículo
Methodology for the estimation of cylinder inner surface temperature in an air-cooled engine
(Elsevier, 2012)
A methodology for the estimation of the mean temperature of the cylinder inner surface in an air-cooled internal combustion engine is proposed. Knowledge of this temperature is necessary to determine the heat flux from the ...
Artículo
Assessment of the photovoltaic potential at urban level based on 3D city models: A case study and new methodological approach
(Elsevier, 2017)
The use of 3D city models combined with simulation functionalities allows to quantify energy demand and renewable generation for a very large set of buildings. The scope of this paper is to determine the solar photovoltaic ...
Tesis Doctoral
Evaluación experimental de los tubos receptores de una planta termosolar de tecnología cilindroparabólica. Impacto en la producción eléctrica de una planta comercial
(2020-09-21)
Los tubos receptores son elementos clave en las plantas termosolares de tecnología cilindro parabólica, puesto que en ellos tiene lugar la conversión de energía solar en energía térmica, y por tanto, cabe esperar que su ...
Artículo
Touch-free reactive flash sintering of dense strontium hexaferrite permanent magnet
(John Wiley and Sons, 2023)
This work presents an extension of the touch-free flash sintering technique. In the proposed technique, chemical reaction and sintering occur in a single step, without the use of electrodes, in the presence of electric ...
Tesis Doctoral
Terrestrial Demonstrator for the Hydrogen Extraction of Oxygen from Lunar Regolith with Concentrated Solar Energy
(2022-03-01)
An experimental plant for the reduction of granular ilmenite (FeTiO3) with hydrogen (H2) powered by concentrated solar radiation was designed, built, and tested to demonstrate extraction of oxygen from lunar soil at the ...
Artículo
Albero: An alternative natural material for solar energy storage by the calcium-looping process
(Elsevier, 2022-07)
Large-scale thermochemical energy storage (TCES) is gaining relevance as an alternative to current thermal energy storage systems in Concentrated Solar Power plants. Among the different systems, the reversible reaction ...