Results 1 to 10 of about 231,837 (281)

Towards the intrahour forecasting of direct normal irradiance using sky-imaging data [PDF]

open access: yesHeliyon, 2018
Increasing power plant efficiency through improved operation is key in the development of Concentrating Solar Power (CSP) technologies. To this end, one of the most challenging topics remains accurately forecasting the solar resource at a short-term ...
Julien Nou   +4 more
doaj   +6 more sources

Estimation of Direct Normal Irradiance at Antarctica for Concentrated Solar Technology [PDF]

open access: yesApplied System Innovation, 2019
The estimation of the average daily, monthly and annual direct normal solar irradiation (DNI) was done in the region hosting the Mario Zucchelli Station, in the bay of Terra Nova (Antarctica).
Irena Balog   +5 more
doaj   +5 more sources

Effect of Feature Selection on the Prediction of Direct Normal Irradiance

open access: yesBig Data Mining and Analytics, 2022
Solar radiation is capable of producing heat, causing chemical reactions, or generating electricity. Thus, the amount of solar radiation at different times of the day must be determined to design and equip all solar systems.
Mohamed Khalifa Boutahir   +4 more
doaj   +3 more sources

Comparison of Ground-Based Global Horizontal Irradiance and Direct Normal Irradiance with Satellite-Based SUNY Model

open access: yesEnergies, 2022
Since the fossil reserves are depleting day by day, the trend of modern energy sector is going towards renewable energy. The demand of solar power plants is therefore at the peak nowadays across the globe.
Adnan Ayaz   +5 more
doaj   +4 more sources

Direct Normal Irradiance Forecasting Using Multivariate Gated Recurrent Units

open access: yesEnergies, 2020
Power grid operators rely on solar irradiance forecasts to manage uncertainty and variability associated with solar power. Meteorological factors such as cloud cover, wind direction, and wind speed affect irradiance and are associated with a high degree ...
Majid Hosseini   +5 more
doaj   +4 more sources

Estimations of Global Horizontal Irradiance and Direct Normal Irradiance by Using Fengyun-4A Satellite Data in Northern China [PDF]

open access: yesRemote Sensing, 2021
Accurate solar radiation estimation is very important for solar energy systems and is a precondition of solar energy utilization. Due to the rapid development of new energy sources, the demand for surface solar radiation estimation and observation has ...
Dongyu Jia   +7 more
doaj   +3 more sources

Hybrid deep learning CNN-LSTM model for forecasting direct normal irradiance: a study on solar potential in Ghardaia, Algeria. [PDF]

open access: yesSci Rep
This paper provides an in-depth analysis and performance evaluation of four Solar Radiance (SR) prediction models. The prediction is ensured for a period ranging from a few hours to several days of the year.
Ladjal B   +7 more
europepmc   +2 more sources

The impact of season, temperature, and direct normal irradiance on IVF pregnancy outcomes: a retrospective cohort study. [PDF]

open access: yesInt J Biometeorol
Objective. This study assessed associations between season, temperature, direct normal irradiance (DNI), and clinical pregnancy outcomes in first fresh in vitro fertilization (IVF) cycle. Methods.
Wang C   +7 more
europepmc   +2 more sources

New Decomposition Models for Hourly Direct Normal Irradiance Estimations for Southern Africa

open access: yesSolar
This research develops and validates new decomposition models for hourly direct Normal Irradiance (DNI) estimations for Southern African data. Localised models were developed using data collected from the Southern African Universities Radiometric Network
Francisca Muriel Daniel-Durandt   +1 more
doaj   +2 more sources

Development of an Empirical Model for Photosynthetically Active Radiation Direct Normal Irradiance using Spectral Direct Normal Irradiance in Daejeon [PDF]

open access: yesJournal of the Korean Solar Energy Society, 2020
Photosynthetically active radiation (PAR; wavelength 400–700 nm) is the spectral range of solar radiation used by plants for photosynthesis. It is necessary to use PAR data in various fields, such as the surface vegetation growth, light energy–chemical ...
Choi Kyung Bae ・ Lee Yun Gon ・ Kim Chang Ki
semanticscholar   +2 more sources

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