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Now showing items 121-130 of 252
Article
Production of Oxygenated Fuel Additives from Residual Glycerine Using Biocatalysts Obtained from Heavy-Metal-Contaminated Jatropha curcas L. Roots
(MDPI, 2019)
This work aims to shed light on the use of two biochars, obtained from the pyrolysis at 550 C of heavy-metal-contaminated Jatropha curcas L. roots, as heterogeneous catalysts for glycerol esterification using residual ...
Article
Decision system based on neural networks to optimize the energy efficiency of a petrochemical plant
(Elsevier, 2012)
The energy efficiency of industrial plants is an important issue in any type of business but particularly in the chemical industry. Not only is it important in order to reduce costs, but also it is necessary even more as ...
Article
Pacing and Performance in the 6 World Marathon Majors
(Frontiers Media, 2019)
The main goal of this study was to analyse the pacing strategies displayed by the winners of the six World Marathon Majors in order to determine which race offers the greatest potential for future world record attempts. ...
Article
Hybrid power-heat microgrid solution using hydrogen as an energy vector for residential houses in Spain. A case study
(Elsevier, 2022-07-01)
In order to favor a transition to a renewable energy economy, it is necessary to study the possible permeation of renewable energy sources not only in the electric grid or industrial scale, but also in the small householding ...
Article
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 ...
Article
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 ...
Article
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 ...
Article
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 ...
Article
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 ...
Article
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 ...