Results 41 to 50 of about 231,837 (281)

Design and testing of highly transparent concentrator photovoltaic modules for efficient dual‐land‐use applications

open access: yesEnergy Science & Engineering, 2020
Two types of highly transparent concentrator photovoltaic (CPV) modules that separately utilize direct sunlight and diffuse sunlight for efficient dual‐land‐use applications were designed and tested. The type A module, comprising a typical‐scale CPV lens
Daisuke Sato, Noboru Yamada
doaj   +1 more source

Development and comparison of local solar split models on the example of Central Europe

open access: yesEnergy and AI, 2023
Solar radiation influences many and diverse fields like energy generation, agriculture and building operation. Hence, simulation models in these fields often rely on precise information about solar radiation.
E. Schlager, G. Feichtinger, H. Gursch
doaj   +1 more source

Identifying periods of clear sky direct normal irradiance

open access: yesRenewable Energy, 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, we present a simple algorithm for offline detection of situations where the sun path to the observer is not obstructed by any cloud ...
M. Larrañeta   +3 more
openaire   +3 more sources

Comparison of model estimated and measured direct‐normal solar irradiance [PDF]

open access: yesJournal of Geophysical Research: Atmospheres, 1997
Direct‐normal solar irradiance (DNSI), the energy in the solar spectrum incident in unit time at the Earth's surface on a unit area perpendicular to the direction to the Sun, depends only on atmospheric extinction of solar energy without regard to the details of the extinction, whether absorption or scattering.
Rangasayi N. Halthore   +6 more
openaire   +1 more source

Application of small angle approximation in circumsolar irradiance modelling

open access: yesSolar Energy Advances, 2021
Circumsolar irradiance is the part of diffuse or scattered irradiance within a small angle (2.5° for typical pyrheliometers) around the sun which is measured, together with direct normal irradiance, by pyrheliometers and reported as part of the direct ...
Yi Qin   +4 more
doaj   +1 more source

Influences of Cloud Microphysics on the Components of Solar Irradiance in the WRF-Solar Model

open access: yesAtmosphere, 2023
An accurate forecast of Global Horizontal solar Irradiance (GHI) and Direct Normal Irradiance (DNI) in cloudy conditions remains a major challenge in the solar energy industry.
Xin Zhou   +5 more
doaj   +1 more source

Evaluation of the estimation of diffuse irradiance from global and direct normal irradiance measurements [PDF]

open access: yesSolar Energy, 1984
As part of a radiometer intercomparison experiment, different combinations of pyranometer and pyrheliometers were used to estimate diffuse solar irradiance on a horizontal surface. Sixteen combinations were possible with four pyranometers and four pyrheliometers.
openaire   +2 more sources

Dynamic Paths: Towards high frequency direct normal irradiance forecasts

open access: yesEnergy, 2017
This project has received funding from the European Union’s Horizon 2020 research and innovation programme in the Pre- FlexMS project under grant agreement No 654984.
Fernandez Peruchena, Carlos. M.   +6 more
openaire   +3 more sources

Enhancing Solar Energy Prospects: Predicting Direct Normal Irradiance in Qinghai Province Using ALO-RF Modeling [PDF]

open access: yesAdvances in Engineering and Intelligence Systems
One important aspect of solar radiation that has a direct impact on atmospheric processes, climatic conditions, and energy generation is direct normal irradiance.
MD Abdul Munnaf, Tawhidul Islam
doaj   +1 more source

Study on integrated solar combined cycle system with a new operation strategy of changeable integration mode under different Direct Normal Irradiance (DNI) conditions

open access: yesEnergy Science & Engineering, 2020
Integrated solar combined cycle (ISCC) system, which integrates solar thermal energy into traditional gas turbine combined cycle (GTCC) system, has become an efficient way to reduce the levelized cost of electricity (LCOE) and improve the thermal ...
Zhen Wang, Liqiang Duan
semanticscholar   +1 more source

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