skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Measurements and models for total solar irradiance on inclined surface in Athens, Greece

Abstract

This article presents a comparative assessment of tilted irradiation models, using hourly measurements of total solar irradiation on a surface tilted 50 degrees and oriented south in Athens. Detailed measurements on inclined surfaces are carried out at the National Observatory of Athens and are unique in Greece. Twelve sky diffuse submodels are used with four albedo submodels to estimate the global irradiation on the tilted surface from data on the horizontal plane. Root mean square errors (rmse) and mean bias errors (mbe) are used to determine the intrinsic performance of each diffuse tilt/albedo submodel combination. GUEYMARD, HAY, REINDL, and SKARTVEIT-OLSETH diffuse tilt submodels are found to have the best overall performances, in conjunction with either one of three albedo submodels (constant albedo, seasonally varying albedo, and anisotropic albedo). The PEREZ model's performance was below expectations, probably due to the particular atmospheric environment of Athens. The anisotropic and seasonally varying albedo submodels do not improve the performance of the four better diffuse tilt models (compared to their performance using an albedo fixed at 0.2) for the moderately tilted surface investigated in this article.

Authors:
;  [1];  [2]
  1. (Institute of Meteorology and Physics of the Atmospheric Environment, Athens (Greece))
  2. (Florida Solar Energy Center, Cape Canaveral, FL (United States))
Publication Date:
OSTI Identifier:
6811243
Alternate Identifier(s):
OSTI ID: 6811243
Resource Type:
Journal Article
Resource Relation:
Journal Name: Solar Energy (Journal of Solar Energy Science and Engineering); (United States); Journal Volume: 53:2
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; DIFFUSE SOLAR RADIATION; MATHEMATICAL MODELS; PREDICTION EQUATIONS; SURFACES; INCLINATION; ALBEDO; COMPARATIVE EVALUATIONS; EQUATIONS; EVALUATION; RADIATIONS; SOLAR FLUX; SOLAR RADIATION; STELLAR RADIATION 140100* -- Solar Energy-- Resources & Availability; 990200 -- Mathematics & Computers

Citation Formats

Kambezidis, H.D., Psiloglou, B.E., and Gueymard, C.. Measurements and models for total solar irradiance on inclined surface in Athens, Greece. United States: N. p., 1994. Web. doi:10.1016/0038-092X(94)90479-0.
Kambezidis, H.D., Psiloglou, B.E., & Gueymard, C.. Measurements and models for total solar irradiance on inclined surface in Athens, Greece. United States. doi:10.1016/0038-092X(94)90479-0.
Kambezidis, H.D., Psiloglou, B.E., and Gueymard, C.. Mon . "Measurements and models for total solar irradiance on inclined surface in Athens, Greece". United States. doi:10.1016/0038-092X(94)90479-0.
@article{osti_6811243,
title = {Measurements and models for total solar irradiance on inclined surface in Athens, Greece},
author = {Kambezidis, H.D. and Psiloglou, B.E. and Gueymard, C.},
abstractNote = {This article presents a comparative assessment of tilted irradiation models, using hourly measurements of total solar irradiation on a surface tilted 50 degrees and oriented south in Athens. Detailed measurements on inclined surfaces are carried out at the National Observatory of Athens and are unique in Greece. Twelve sky diffuse submodels are used with four albedo submodels to estimate the global irradiation on the tilted surface from data on the horizontal plane. Root mean square errors (rmse) and mean bias errors (mbe) are used to determine the intrinsic performance of each diffuse tilt/albedo submodel combination. GUEYMARD, HAY, REINDL, and SKARTVEIT-OLSETH diffuse tilt submodels are found to have the best overall performances, in conjunction with either one of three albedo submodels (constant albedo, seasonally varying albedo, and anisotropic albedo). The PEREZ model's performance was below expectations, probably due to the particular atmospheric environment of Athens. The anisotropic and seasonally varying albedo submodels do not improve the performance of the four better diffuse tilt models (compared to their performance using an albedo fixed at 0.2) for the moderately tilted surface investigated in this article.},
doi = {10.1016/0038-092X(94)90479-0},
journal = {Solar Energy (Journal of Solar Energy Science and Engineering); (United States)},
number = ,
volume = 53:2,
place = {United States},
year = {Mon Aug 01 00:00:00 EDT 1994},
month = {Mon Aug 01 00:00:00 EDT 1994}
}