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4 results on '"Elomari, Youssef"'

2. Methodology for the Prediction of the Thermal Conductivity of Concrete by Using Neural Networks.

Author

Rosa, Ana Carolina, Elomari, Youssef, Calderón, Alejandro, Mateu, Carles, Haddad, Assed, and Boer, Dieter

Subjects
MULTILAYER perceptrons, GENERATIVE adversarial networks, ARTIFICIAL neural networks, ENERGY consumption of buildings, THERMAL properties
Abstract

The energy consumption of buildings presents a significant concern, which has led to a demand for materials with better thermal performance. Thermal conductivity (TC), among the most relevant thermal properties, is essential to address this demand. This study introduces a methodology integrating a Multilayer Perceptron (MLP) and a Generative Adversarial Network (GAN) to predict the TC of concrete based on its mass composition and density. Three scenarios using experimental data from published papers and synthetic data are compared and reveal the model's outstanding performance across training, validation, and test datasets. Notably, the MLP trained on the GAN-augmented dataset outperforms the one with the real dataset, demonstrating remarkable consistency between the model's predictions and the actual values. Achieving an RMSE of 0.0244 and an R2 of 0.9975, these outcomes can offer precise quantitative information and advance energy-efficient materials. [ABSTRACT FROM AUTHOR]

Published
2024
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4. Integration of Solar Photovoltaic Systems into Power Networks: A Scientific Evolution Analysis

Author

Universitat Rovira i Virgili, Elomari, Youssef; Norouzi, Masoud; Marin-Genesca, Marc; Fernandez, Alberto; Boer, Dieter, Universitat Rovira i Virgili, and Elomari, Youssef; Norouzi, Masoud; Marin-Genesca, Marc; Fernandez, Alberto; Boer, Dieter

Abstract

Solar photovoltaic (PV) systems have drawn significant attention over the last decade. One of the most critical obstacles that must be overcome is distributed energy generation. This paper presents a comprehensive quantitative bibliometric study to identify the new trends and call attention to the evolution within the research landscape concerning the integration of solar PV in power networks. The research is based on 7146 documents that were authored between 2000-2021 and downloaded from the Web of Science database. Using an in-house bibliometric tool, Bibliometrix R-package, and the open-source tool VOSviewer we obtained bibliometric indicators, mapped the network analysis, and performed a multivariate statistical analysis. The works that were based on solar photovoltaics into power networks presented rapid growth, especially in India. The co-occurrence analysis showed that the five main clusters, classified according to dimensions and significance, are (i) power quality issues that are caused by the solar photovoltaic penetration in power networks; (ii) algorithms for energy storage, demand response, and energy management in the smart grid; (iii) optimization, techno-economic analysis, sensitivity analysis, and energy cost analysis for an optimal hybrid power system; (iv) renewable energy integration, self-consumption, energy efficiency, and sustainable development; and (v) modeling, simulation, and control of battery energy storage systems. The results revealed that researchers pay close attention to "renewable energy", "microgrid", "energy storage", "optimization", and "smart grid", as the top five keywords in the past four years. The results also suggested that (i) power quality; (ii) voltage and frequency fluctuation problems; (iii) optimal design and energy mana

Published
2022

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