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Title: Toward Improved Modeling of Spectral Solar Irradiance for Solar Energy Applications: Preprint

Abstract

This study introduces the National Renewable Energy Laboratory's (NREL's) recent efforts to extend the capability of the Fast All-sky Radiation Model for Solar applications (FARMS) by computing spectral solar irradiances over both horizontal and inclined surfaces. A new model is developed by computing the optical thickness of the atmosphere using a spectral irradiance model for clear-sky conditions, SMARTS2. A comprehensive lookup table (LUT) of cloud bidirectional transmittance distribution functions (BTDFs) is precomputed for 2002 wavelength bands using an atmospheric radiative transfer model, libRadtran. The solar radiation transmitted through the atmosphere is given by considering all possible paths of photon transmission and the relevent scattering and absorption attenuation. Our results indicate that this new model has an accuracy that is similar to that of state-of-the-art radiative transfer models, but it is significantly more efficient.

Authors:
 [1]; ORCiD logo [1]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
OSTI Identifier:
1404878
Report Number(s):
NREL/CP-5D00-70159
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at the European PV Solar Energy Conference and Exhibition, 25 - 29 September 2017, Amsterdam, The Netherlands
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; solar radiation; optical properties; PV systems

Citation Formats

Xie, Yu, and Sengupta, Manajit. Toward Improved Modeling of Spectral Solar Irradiance for Solar Energy Applications: Preprint. United States: N. p., 2017. Web.
Xie, Yu, & Sengupta, Manajit. Toward Improved Modeling of Spectral Solar Irradiance for Solar Energy Applications: Preprint. United States.
Xie, Yu, and Sengupta, Manajit. Thu . "Toward Improved Modeling of Spectral Solar Irradiance for Solar Energy Applications: Preprint". United States. doi:. https://www.osti.gov/servlets/purl/1404878.
@article{osti_1404878,
title = {Toward Improved Modeling of Spectral Solar Irradiance for Solar Energy Applications: Preprint},
author = {Xie, Yu and Sengupta, Manajit},
abstractNote = {This study introduces the National Renewable Energy Laboratory's (NREL's) recent efforts to extend the capability of the Fast All-sky Radiation Model for Solar applications (FARMS) by computing spectral solar irradiances over both horizontal and inclined surfaces. A new model is developed by computing the optical thickness of the atmosphere using a spectral irradiance model for clear-sky conditions, SMARTS2. A comprehensive lookup table (LUT) of cloud bidirectional transmittance distribution functions (BTDFs) is precomputed for 2002 wavelength bands using an atmospheric radiative transfer model, libRadtran. The solar radiation transmitted through the atmosphere is given by considering all possible paths of photon transmission and the relevent scattering and absorption attenuation. Our results indicate that this new model has an accuracy that is similar to that of state-of-the-art radiative transfer models, but it is significantly more efficient.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Oct 19 00:00:00 EDT 2017},
month = {Thu Oct 19 00:00:00 EDT 2017}
}

Conference:
Other availability
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