Results 31 to 40 of about 4,088 (233)

Determination of Diffused Irradiation from Horizontal Global Irradiation - Study for the City of Curitiba [PDF]

Brazilian Archives of Biology and Technology, 2019
Abstract Understanding the solar radiation values in the surface is important for the development of solar energy projects, obtaining through radiometers installed in certain places or publications as in solar energy atlases. Typically, solar or weather stations do not have sensors to measure diffuse irradiation due to high investment and the need for ...
Muriele Bester de Souza, Édwin Augusto Tonolo, Renata Lautert Yang, Gerson Máximo Tiepolo, Jair Urbanetz Junior   +4 more
openaire   +4 more sources

Comparison of Modelled and Measured Tilted Solar Irradiance for Photovoltaic Applications

Energies, 2017
This work assesses the performance of five transposition models that estimate the global and diffuse solar irradiance on tilted planes based on the global horizontal irradiance.
Riyad Mubarak, Martin Hofmann, Stefan Riechelmann, Gunther Seckmeyer   +3 more
doaj   +1 more source

A copula-based time series model for global horizontal irradiation

International Journal of Forecasting, 2023
The increasing importance of solar power for electricity generation leads to an increasing demand for probabilistic forecasting of local and aggregated PV yields. In this paper we use an indirect modeling approach for hourly medium to long term local PV yields based on publicly available irradiation data.
Müller, Alfred, Reuber, Matthias
openaire   +2 more sources

A New Database of Global and Direct Solar Radiation Using the Eastern Meteosat Satellite, Models and Validation

Remote Sensing, 2014
We present a new database of solar radiation at ground level for Eastern Europe and Africa, the Middle East and Asia, estimated using satellite images from the Meteosat East geostationary satellites.
Ana Gracia Amillo, Thomas Huld, Richard Müller   +2 more
doaj   +1 more source

Estimating Ultraviolet Radiation From Global Horizontal Irradiance

IEEE Journal of Photovoltaics, 2019
Terrestrial ultraviolet radiation (UV) radiation is a primary factor contributing to the degradation of photovoltaic (PV) modules’ efficiency and reliability over time. Therefore, accurate knowledge of terrestrial UV incident on the surface of the PV materials is essential to understand the degradation of PV modules and provide reliable assessment of ...
Aron Habte, Manajit Sengupta, Christian A. Gueymard, Ranganath Narasappa, Olivier Rosseler, David M. Burns   +5 more
openaire   +1 more source

One-Hour Prediction of the Global Solar Irradiance from All-Sky Images Using Artificial Neural Networks

Energies, 2018
We present a method to predict the global horizontal irradiance (GHI) one hour ahead in one-minute resolution using Artificial Neural Networks (ANNs). A feed-forward neural network with Levenberg⁻Marquardt Backpropagation (LM-BP) was used and was ...
Cristian Crisosto, Martin Hofmann, Riyad Mubarak, Gunther Seckmeyer   +3 more
doaj   +1 more source

Forecasting of global horizontal irradiance by exponential smoothing, using decompositions [PDF]

Energy, 2015
Time series methods are frequently used in solar irradiance forecasting when two dimensional cloud information provided by satellite or sky camera is unavailable. ETS (exponential smoothing) has received extensive attention in the recent years since the invention of its state space formulation. In this work, we combine these models with knowledge based
Yang, Dazhi, Sharma, Vishal, Ye, Zhen, Lim, Li Hong Idris, Zhao, Lu, Aryaputera, Aloysius W.   +5 more
openaire   +1 more source

Twenty-Four-Hour Ahead Probabilistic Global Horizontal Irradiance Forecasting Using Gaussian Process Regression

Algorithms, 2021
Probabilistic solar power forecasting has been critical in Southern Africa because of major shortages of power due to climatic changes and other factors over the past decade. This paper discusses Gaussian process regression (GPR) coupled with core vector
Edina Chandiwana, Caston Sigauke, Alphonce Bere   +2 more
doaj   +1 more source

The Estimation of Clear Sky Global Horizontal Irradiance at the Equator

Energy Procedia, 2012
AbstractWe analyse Singapore global horizontal irradiance (GHI) measurements to estimate clear sky GHI in the equator region. The data consists of a one-year period of clear sky GHI at three solar irradiance monitoring stations in Singapore, namely, First Zero Energy House in Singapore (1.3094∘N, 103.9160∘E) located in the east of the country, Solar ...
Dazhi, Yang, Jirutitijaroen, Panida, Walsh, Wilfred M.   +2 more
openaire   +1 more source

Revolutionising Agricultural Sustainability: New ‘Furrow Tillage’ can Mitigate Short‐Term Soil‐to‐Atmosphere CO2 Flux and Promote Soil‐Plant‐Microbe Health

Advanced Science, EarlyView.
Furrow tillage resolves the conventional‐vs.‐no‐tillage trade‐off by simultaneously cutting CO2 efflux to 2.0–3.0 g C m−2 d−1 and unlocking high nutrient availability for the rice rhizosphere. This scalable agronomic solution strengthens soil health, enhances plant physiology, reshapes microbial metabolism, and shifts paddy systems toward a net ...
Arnab Majumdar, Munish Kumar Upadhyay, Argha Ghosh, Rakesh Biswas, Ioly Kotta Loizou, Martin Buck, Mark Tibbett, Biswajit Giri, Debojyoti Moulick, Manoj Kumar Jaiswal, Tarit Roychowdhury   +10 more
wiley   +1 more source