Search Results - "Silva, Hugo G."

Effect of Solar Irradiation Inter-Annual Variability on PV and CSP Power Plants Production Capacity: Portugal Case-Study by Tavares, Ailton M., Conceição, Ricardo, Lopes, Francisco M., Silva, Hugo G.

“…The sizing of solar energy power plants is usually made using typical meteorological years, which disregards the inter-annual variability of the solar…”
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Organic Soiling: The Role of Pollen in PV Module Performance Degradation by Conceição, Ricardo, Silva, Hugo, Mirão, José, Collares-Pereira, Manuel

“…Soiling is a problem for solar energy harvesting technologies, such as in photovoltaic modules technologies. This paper describes not only one complete year of…”
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Development of a Simple Methodology Using Meteorological Data to Evaluate Concentrating Solar Power Production Capacity by Tavares, Ailton M., Conceição, Ricardo, Lopes, Francisco M., Silva, Hugo G.

“…Evaluation of the Concentrating Solar Power capacity factor is critical to support decision making on possible regional energy investments. For such…”
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Short-Term Forecasts of DNI from an Integrated Forecasting System (ECMWF) for Optimized Operational Strategies of a Central Receiver System by Lopes, Francis M., Conceição, Ricardo, Silva, Hugo G., Fasquelle, Thomas, Salgado, Rui, Canhoto, Paulo, Collares-Pereira, Manuel

“…Short-term forecasts of direct normal irradiance (DNI) from the Integrated Forecasting System (IFS) and the global numerical weather prediction model of the…”
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Testing of a Low-Cost Dry Cell Prototype for Oxyhydrogen Production by Bunge, Lisa, Silva, Hugo G., Cruz, Pedro L., Iten, Muriel

“…This work aims to study the production of oxyhydrogen gas by a small low-cost prototype consisting of six dry cells. Firstly, a molecular composition study of…”
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CSP mirror soiling characterization and modeling by Conceição, Ricardo, Silva, Hugo G., Collares-Pereira, Manuel

“…Soiling stands as a major problem for solar energy conversion technologies, causing unwanted transmittance, reflectance and absorbance losses. In this paper, a…”
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Comparative modeling of optical soiling losses for CSP and PV energy systems by Bellmann, Philipp, Wolfertstetter, Fabian, Conceição, Ricardo, Silva, Hugo G.

“…•Our measurements show that the soiling-induced efficiency reduction is 8–14 times stronger in CSP than in PV.•Mie scattering simulations can explain that…”
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Transport of the smoke plume from Chiado’s fire in Lisbon (Portugal) sensed by atmospheric electric field measurements by Conceição, Ricardo, Melgão, Marta, Silva, Hugo G., Nicoll, Keri, Harrison, Richard G., Reis, António H.

“…The Chiado’s fire that affected the city centre of Lisbon (Portugal) occurred on 25th August 1988 and had a significant human and environmental impact. This…”
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PV system design with the effect of soiling on the optimum tilt angle by Conceição, Ricardo, Silva, Hugo G., Fialho, Luis, Lopes, Francis M., Collares-Pereira, Manuel

“…Local particle deposition and solar irradiance data, from Photovoltaic Geographical Information System (PVGIS) in the Alentejo region (southern Portugal), are…”
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Saharan dust transport to Europe and its impact on photovoltaic performance: A case study of soiling in Portugal by Conceição, Ricardo, Silva, Hugo G., Mirão, José, Gostein, Michael, Fialho, Luis, Narvarte, Luis, Collares-Pereira, Manuel

“…•Saharan long-range dust transport to Portugal which is entirely new.•NOAA/NASA satellite images of the dust transport.•Hybrid Single-Particle Lagrangian…”
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Pressure drops, heat transfer coefficient, costs and power block design for direct storage parabolic trough power plants running molten salts by Lopes, Telma, Fasquelle, Thomas, Silva, Hugo G.

“…Direct circulation of molten salts in the solar field of parabolic trough solar power plants may be a possible breakthrough to decrease their levelized cost of…”
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Short-term forecasts of GHI and DNI for solar energy systems operation: assessment of the ECMWF integrated forecasting system in southern Portugal by Lopes, Francis M., Silva, Hugo G., Salgado, Rui, Cavaco, Afonso, Canhoto, Paulo, Collares-Pereira, Manuel

“…•Assessment of hourly predictions of GHI and DNI for solar energy systems operation.•Predictions from the ECMWF model are compared against irradiance…”
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LOOKING FOR GRANULATION AND PERIODICITY IMPRINTS IN THE SUNSPOT TIME SERIES by Lopes, Ilídio, Silva, Hugo G.

“…ABSTRACT The sunspot activity is the end result of the cyclic destruction and regeneration of magnetic fields by the dynamo action. We propose a new method to…”
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Global Electric Circuit research at Graciosa Island (ENA-ARM facility): First year of measurements and ENSO influences by Lopes, Francis M., Silva, Hugo G., Bennett, Alec J., Reis, A. Heitor

“…Around 100 years after Carnegie expeditions discovered the Global Electric Circuit, a measuring campaign started at ARM, Eastern North Atlantic facility…”
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Drug-drug interactions between raltegravir and pravastatin in healthy volunteers by van Luin, Matthijs, Colbers, Angela, van Ewijk-Beneken Kolmer, Eleonora W J, Verweij-van Wissen, Corrien P W G M, Schouwenberg, Bas, Hoitsma, Arjen, da Silva, Hugo G, Burger, David M

“…To evaluate the potential drug-drug interaction between raltegravir and pravastatin. This was an open-label, randomized, 3-period, cross-over, single-centre…”
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Improved ECMWF forecasts of direct normal irradiance: A tool for better operational strategies in concentrating solar power plants by Lopes, Francis M., Conceição, Ricardo, Silva, Hugo G., Salgado, Rui, Collares-Pereira, Manuel

“…To contribute for improved operational strategies of concentrating solar power plants with accurate forecasts of direct normal irradiance, this work describes…”
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Predicted direct solar radiation (ECMWF) for optimized operational strategies of linear focus parabolic-trough systems by Lopes, Francis M., Conceição, Ricardo, Fasquelle, Thomas, Silva, Hugo G., Salgado, Rui, Canhoto, Paulo, Collares-Pereira, Manuel

“…Day-ahead forecasts of direct normal irradiance (DNI) from the Integrated Forecasting System (IFS), the global model of the European Centre for Medium-Range…”
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Chaotic behavior of seismic mechanisms: experiment and observation by Bento Caldeira, Hugo Gonçalves, José F., Mouhaydine Tlemçani, Mourad Bezzeghoud

“…To simulate the dynamics of earthquakes, a mechanical prototype was constructed that was inspired by the Burridge-Knopoff model and equipped with accurate…”
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Wavelet analysis of the LF radio signals collected by the European VLF/LF network from July 2009 to April 2011 by Flavia Righetti, Pier Francesco Biagi, Tommaso Maggipinto, Luigi Schiavulli, Teresa Ligonzo, Anita Ermini, Iren Adeline, Adrian Moldovan, Aydin Buyuksarac, Hugo Gonzales, Mourad Bezzeghoud, Michael E., Dimitrios Arabelos, Thomas Xenos

“…In 2008, a radio receiver that works in very low frequency (VLF; 20-60 kHz) and LF (150-300 kHz) bands was developed by an Italian factory. The receiver can…”
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Atmospheric electrical field decrease during the M = 4.1 Sousel earthquake (Portugal) by Silva, H. G., Bezzeghoud, M., Reis, A. H., Rosa, R. N., Tlemçani, M., Araújo, A. A., Serrano, C., Borges, J. F., Caldeira, B., Biagi, P. F.

“…In this paper, we report the observation of a significant decrease of the vertical component of the atmospheric electrical field in the Évora region (Portugal)…”
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