The role of clouds in improving the regression model for hourly values of diffuse solar radiation
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
12/10/2013
12/10/2013
2012
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| Resumo |
The study introduces a new regression model developed to estimate the hourly values of diffuse solar radiation at the surface. The model is based on the clearness index and diffuse fraction relationship, and includes the effects of cloud (cloudiness and cloud type), traditional meteorological variables (air temperature, relative humidity and atmospheric pressure observed at the surface) and air pollution (concentration of particulate matter observed at the surface). The new model is capable of predicting hourly values of diffuse solar radiation better than the previously developed ones (R-2 = 0.93 and RMSE = 0.085). A simple version with a large applicability is proposed that takes into consideration cloud effects only (cloudiness and cloud height) and shows a R-2 = 0.92. (C) 2011 Elsevier Ltd. All rights reserved. CNPq CNPq FAPESP FAPESP 'Fondazione Cassa di Risparmio di Padova e Rovigo' Fondazione Cassa di Risparmio di Padova e Rovigo |
| Identificador |
APPLIED ENERGY, OXFORD, v. 92, n. 3, supl. 1, Part 1, pp. 240-254, APR, 2012 0306-2619 http://www.producao.usp.br/handle/BDPI/34246 10.1016/j.apenergy.2011.10.032 |
| Idioma(s) |
eng |
| Publicador |
ELSEVIER SCI LTD OXFORD |
| Relação |
APPLIED ENERGY |
| Direitos |
closedAccess Copyright ELSEVIER SCI LTD |
| Palavras-Chave | #REGRESSION #DIFFUSE SOLAR RADIATION MODEL #CLOUD #CORRELATION MODELS #LIU-JORDAN #ARTIFICIAL NEURAL-NETWORK #SAO-PAULO #SPECTRAL IRRADIANCE #HORIZONTAL SURFACE #SUNSHINE DURATION #GLOBAL RADIATION #SKY CONDITIONS #SATELLITE DATA #BRAZIL #FRACTION #ENERGY & FUELS #ENGINEERING, CHEMICAL |
| Tipo |
article original article publishedVersion |
