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Browsing by Author "Larrañeta, Miguel"
Now showing items 1-20 of 27
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Presentation
A normalized variability index of daily solar radiation
Moreno Tejera, Sara; Larrañeta, Miguel; Lillo Bravo, Isidoro; Silva Pérez, Manuel Antonio (American Institute of Physics Inc., 2020-12)The Variability Index (VI) is widely used to quantify the intra-day solar radiation variability. It compares the length ...
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Article
An Approach to the Operation Modes and Strategies for Integrated Hybrid Parabolic Trough and Photovoltaic Solar Systems
López Álvarez, José Antonio; Larrañeta, Miguel; Pérez-Aparicio, Elena; Silva Pérez, Manuel Antonio; Lillo Bravo, Isidoro (MDPI, 2021)Concentrated solar power (CSP) and photovoltaic (PV) solar systems can be hybridized, creating synergies: on one hand ...
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Article
An improved model for the synthetic generation of high temporal resolution direct normal irradiation time series
Larrañeta, Miguel; Moreno Tejera, Sara; Silva Pérez, Manuel Antonio; Lillo Bravo, Isidoro (Elsevier, 2015-12)Several studies have confirmed the relevant impact of the resolution and frequency distribution of solar radiation data ...
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Article
Analysis of the distribution of measured and synthetic DNI databases and its effect on the expected production of a parabolic trough plant
Silva Pérez, Manuel Antonio; Barea García, J. M.; Larrañeta, Miguel; Moreno Tejera, Sara; Lillo Bravo, Isidoro (Elsevier, 2014)The generation of a Typical Meteorological Year (TMY) is a common practice in solar energy projects. Therefore it is ...
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Final Degree Project
Análisis Comparativo del funcionamiento de plantas fotovoltaicas fijas y con seguimiento en dos ejes localizadas en Sevilla
Expósito Jaramillo, Francisco Javier (2019)La evolución histórica de generación eléctrica en España ha indicado una disminución en el uso de fuentes de energías ...
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Final Degree Project
Análisis de un sistema de climatización experimental
Marín Murillo, Inés (2022)El drástico incremento a lo largo de los años de los equipos de aire acondicionado es uno de los grandes responsables de ...
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Final Degree Project
Caracterización de la nubosidad en Sevilla mediante medidas de un ceilómetro
Pérez Gallego, Alberto (2019)Caracterizar la nubosidad en un emplazamiento resulta de gran utilidad para proyectos energéticos. La nubosidad es el ...
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Presentation
Cloud transient characterization in different time steps
Larrañeta, Miguel; Moreno Tejera, Sara; Lillo Bravo, Isidoro; Silva Pérez, Manuel Antonio (American Institute of Physics Inc., 2017-06)In this paper we evaluate the cloud transients by analyzing the dynamics of the direct fraction index kb for one year of ...
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Article
Cloudiness Characterization in Seville Using Ceilometer Measurements
Larrañeta, Miguel; Pérez Gallego, Alberto; Silva Pérez, Manuel Antonio; Lillo Bravo, Isidoro (AIP Conference Proceedings, 2020)Laser Ceilometers make use of the elastic LIDAR by emitting signals vertically in the atmosphere and analyzing the profile ...
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Article
Experimental and numerical study on a freeze protection system for flat-plate solar collectors with silicone peroxide tubes
Vera Medina, Jonathan; Lillo Bravo, Isidoro; Hernández, J.; Larrañeta, Miguel (Elsevier, 2018-05)The freeze protection is essential in the majority of solar thermal installations to prevent breakage of solar thermal ...
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Presentation
Experimental Comparison of Different Global Irradiation Models with and without Sun Tracking for the South of Spai
Lillo Bravo, Isidoro; Silva Pérez, Manuel Antonio; Larrañeta, Miguel (EUPVCEC, 2013)It is very unusual to have global irradiance data for a tilted surface and even more for a surface with a perfect sun ...
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Presentation
Experimental evaluation of the solar radiation gains over photovoltaic cells due to the use of tio2 treated surfaces. Applications to photovoltaic systems with micro-inverters
Lillo Bravo, Isidoro; Domínguez, Rocío; Larrañeta, Miguel; Silva Pérez, Manuel Antonio (EUPVCEC, 2016)In building integrated photovoltaic (PV) systems, the reflection of the solar radiation by the walls of the buildings may ...
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Article
High frequency generation of coupled GHI and DNI based on clustered Dynamic Paths
Fernández Peruchena, Carlos María; Larrañeta, Miguel; Blanco, Manuel; Bernardos, Ana (Elsevier, 2018-01)This Brief Note presents a general and efficient clustered-based methodology for the generation of high-frequency coupled ...
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Article
Identifying periods of clear sky direct normal irradiance
Larrañeta, Miguel; Reno, Matthew J.; Lillo Bravo, Isidoro; Silva Pérez, Manuel Antonio (Elsevier, 2017)When modeling the effect of the cloud transients in the Direct Normal Insolation (DNI), it is particularly relevant to ...
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Article
Impact of Energy Losses Due to Failures on Photovoltaic Plant Energy Balance
Lillo Bravo, Isidoro; González Martínez, Pablo; Larrañeta, Miguel; Guasumba-Codena, José (MDPI, 2018-02-03)Photovoltaic (PV) plant failures have a significant influence on PV plant security, reliability, and energy balance. ...
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Presentation
Impact of the intra-day variability of the DNI on the energy yield of CSP plants
Larrañeta, Miguel; Moreno Tejera, Sara; Lillo Bravo, Isidoro; Silva Pérez, Manuel Antonio (American Institute of Physics Inc., 2019-07)The operation and the electricity yield of CSP plants in two days with the same daily-accumulated DNI, even with the same ...
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Article
Increasing the resolution of solar and wind time series for energy system modeling: A review
Omoyele, Olalekan; Hoffmann, Maximilian; Koivisto, Matti; Larrañeta, Miguel; Weinand, Jann Michael; Stolten, Detlef (Elsevier, 2024-01)Bottom-up energy system models are often based on hourly time steps due to limited computational tractability or data ...
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Article
Methodology to synthetically downscale DNI time series from 1-h to 1-min temporal resolution with geographic flexibility
Larrañeta, Miguel; Fernández Peruchena, Carlos María; Silva Pérez, Manuel Antonio; Lillo Bravo, Isidoro (Elsevier, 2018-03)In this paper, we present two methods for the synthetic generation of 1-min Direct Normal solar Irradiance (DNI) data from ...
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Article
Minimizing the Computational Effort to Optimize Solar Concentrators with the Open-Source Tools SunPATH and Tonatiuh++
Blanco, Manuel J.; Grigoriev, Igor V.; Milidonis K.; Tsouloupas, George; Larrañeta, Miguel; Silva Pérez, Manuel Antonio (MDPI AG, 2021)Integrals that are of interest in the analysis, design, and optimization of concentrating solar thermal systems (CST), ...
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Master's Final Project
Performance Evaluation of Short-term Solar Radiation Forecasting Tool “HRforecast”
Becerra Pérez, José Joaquín (2021)El documento aquí presente consiste en una evaluación del rendimiento de la herramienta de previsión de la radiación solar ...