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Prediction Method of Direct Normal Irradiance for Solar Thermal Power Plants Based on VMD-WOA-DELM
IEEE transactions on applied superconductivityThe Direct Normal Irradiance (DNI), being the energy source for solar thermal power plants, can remarkably impact the reliability and efficiency of these plants because of its inherent randomness and fluctuations.
Siyuan Zhang +5 more
semanticscholar +1 more source
3D-CNN-based feature extraction of ground-based cloud images for direct normal irradiance prediction
Solar Energy, 2019Cloud cover and cloud motion have a large impact on solar irradiance. One of the effective ways for direct normal irradiance (DNI) prediction is to use cloud features, which has been extensively studied.
Xin Zhao +4 more
semanticscholar +1 more source
, 2020
A new aerosol direct transmittance parameterization is developed based on detailed radiative transfer model calculations for improving direct normal irradiance (DNI) for the solar energy forecast in the fast radiation scheme SUNFLUX. The modified SUNFLUX
Guoping Shi +3 more
semanticscholar +1 more source
A new aerosol direct transmittance parameterization is developed based on detailed radiative transfer model calculations for improving direct normal irradiance (DNI) for the solar energy forecast in the fast radiation scheme SUNFLUX. The modified SUNFLUX
Guoping Shi +3 more
semanticscholar +1 more source
Prediction of Direct Normal Irradiance Based on Ensemble Deep Learning Models
International Conference on Emerging Technologies, 2020Due to the intermittency and instability of solar power plant output, the key components are often in danger of being scrapped. Therefore, it is necessary to accurately predict the output of solar power plants.
Chengying Zhang +3 more
semanticscholar +1 more source
, 2020
A method of the scattering Phase Function Scaling (PFS) for determination of the direct normal irradiance (DNI) involving the circumsolar normal irradiance (CSNI) is developed. A fraction of the normalized phase function integrated over the field of view
Zhian Sun +4 more
semanticscholar +1 more source
A method of the scattering Phase Function Scaling (PFS) for determination of the direct normal irradiance (DNI) involving the circumsolar normal irradiance (CSNI) is developed. A fraction of the normalized phase function integrated over the field of view
Zhian Sun +4 more
semanticscholar +1 more source
Deriving solar direct normal irradiance using lidar-ceilometer
Solar Energy, 2014Abstract Direct Normal Irradiance (DNI) is a fundamental gauge in the study of solar irradiation and the main parameter for CSP and CPV applications. However, it is not often measured due to practical reasons, and is derived instead from measurements of global irradiance or satellite-based models.
D. Bachour, D. Perez-Astudillo
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Verification of the SUNY direct normal irradiance model with ground measurements
Solar Energy, 2014Abstract The accurate assessment of the Direct Normal Irradiance (DNI) component of the solar resource is notoriously difficult due to the higher cost of DNI instrumentation and the much higher requirements on proper maintenance of such instruments. Nonetheless, DNI is the only component relevant to all concentrated power technologies. The evaluation
Lukas Nonnenmacher +2 more
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Effects of atmospheric aerosol on the direct normal irradiance on the earth's surface
International Journal of Hydrogen Energy, 2014Abstract Direct normal irradiance (DNI) plays a key role on the quantity and rate of hydrogen production. The accurate calculation of DNI has very important significance for low-cost hydrogen economy and efficient utilization of solar energy. This study mainly takes account of the influence of atmospheric aerosol on DNI and the experimental tests ...
Qianjun Mao, Yuan Yuan, Yong Shuai
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Passive separation of global irradiance into direct normal and diffuse components
SPIE Proceedings, 2007Common methods for ground-based measurement of direct normal and diffuse solar irradiance include the simultaneous use of two instruments, usually a pyrheliometer and pyranometer or two pyranometers one of which is fitted with a shading ring. This article describes a passive method of obtaining the direct and diffuse components using a single ...
Michael J. Brooks +2 more
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Comparisons of Direct Normal Irradiation for the Optimization of Active Daylighting Systems
International Journal of Engineering Research in AfricaActive daylighting technology, encompassing techniques for utilizing natural light without converting it into heat or electrical energy, proves highly beneficial in sun-rich countries like Morocco. Unlike solar technologies, which capture global radiation, daylighting technology specifically leverages direct sun radiation.
Oumaima Kanibou +4 more
openaire +1 more source