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Mostrando ítems 1-10 de 17
Tesis Doctoral
Ponencia
Use of the ND tool: An open tool for the synthetic generation of 1-min solar data from hourly means with geographic flexibility
(American Institute of Physics, 2022)
In this paper, we present a description of how to use a web based tool employing the ND model by Larrañeta et al. [1]. The tool is suited for downscaling DNI, GHI or coupled DNI and GHI from 1-h to 1-min. It requires only ...
Artículo
An Approach to the Operation Modes and Strategies for Integrated Hybrid Parabolic Trough and Photovoltaic Solar Systems
(MDPI, 2021)
Concentrated solar power (CSP) and photovoltaic (PV) solar systems can be hybridized, creating synergies: on one hand procuring dispatchability by storing thermal energy, and on the other hand generating electricity at ...
Ponencia
Cloud transient characterization in different time steps
(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 solar radiation data in different time steps. We use instant 5-sec data integrated data and compare ...
Ponencia
A normalized variability index of daily solar radiation
(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 of the global horizontal irradiance (GHI) or direct normal irradiance (DNI) profiles with the length ...
Ponencia
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
(EUPVCEC, 2016)
In building integrated photovoltaic (PV) systems, the reflection of the solar radiation by the walls of the buildings may cause a non-uniform distribution of the incident radiation on the different PV modules. However, by ...
Artículo
Cloudiness Characterization in Seville Using Ceilometer Measurements
(AIP Conference Proceedings, 2020)
Laser Ceilometers make use of the elastic LIDAR by emitting signals vertically in the atmosphere and analyzing the profile of the backscattered signal to detect clouds and calculate cloud-base height [1]. Due to the high ...
Ponencia
Impact of the intra-day variability of the DNI on the energy yield of CSP plants
(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 Aperture Normal Irradiance (ANI) can be very different depending on other parameters such as the ...
Artículo
Identifying periods of clear sky direct normal irradiance
(Elsevier, 2017)
When modeling the effect of the cloud transients in the Direct Normal Insolation (DNI), it is particularly relevant to identify those moments in which there are no clouds between the observer and the sun. In this paper, ...
Artículo
An improved model for the synthetic generation of high temporal resolution direct normal irradiation time series
(Elsevier, 2015-12)
Several studies have confirmed the relevant impact of the resolution and frequency distribution of solar radiation data on the results of detailed production models. Many of the available direct normal irradiance (DNI) ...