A semi-empirical approach for the estimation of global, direct and diffuse illuminance under clear sky condition in the tropics
This paper presents semi-empirical models for estimating global, direct and diffuse illuminances under clear sky conditions in Thailand. The major components of the atmosphere causing attenuation are written explicitly. Rayleigh scattering, ozone absorption and aerosol attenuation, and the actual at...
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Online Access: | https://doi.org/10.1016/j.enbuild.2013.07.003 http://ecite.utas.edu.au/89208 |
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ftunivtasecite:oai:ecite.utas.edu.au:89208 2023-05-15T13:06:16+02:00 A semi-empirical approach for the estimation of global, direct and diffuse illuminance under clear sky condition in the tropics Janjai, S Nunez, M Prathumsit, J Wattan, R Sabooding, R 2013 https://doi.org/10.1016/j.enbuild.2013.07.003 http://ecite.utas.edu.au/89208 en eng Elsevier Science Sa http://dx.doi.org/10.1016/j.enbuild.2013.07.003 Janjai, S and Nunez, M and Prathumsit, J and Wattan, R and Sabooding, R, A semi-empirical approach for the estimation of global, direct and diffuse illuminance under clear sky condition in the tropics, Energy and Buildings, 66 pp. 177-182. ISSN 0378-7788 (2013) [Refereed Article] http://ecite.utas.edu.au/89208 Earth Sciences Atmospheric Sciences Atmospheric Radiation Refereed Article PeerReviewed 2013 ftunivtasecite https://doi.org/10.1016/j.enbuild.2013.07.003 2019-12-13T21:52:44Z This paper presents semi-empirical models for estimating global, direct and diffuse illuminances under clear sky conditions in Thailand. The major components of the atmosphere causing attenuation are written explicitly. Rayleigh scattering, ozone absorption and aerosol attenuation, and the actual attenuation by each component is determined by a multilinear regression against measured data. Atmospheric constituents on aerosol optical depth and total ozone column are obtained from AERONET (Aerosol Robotic Network) and the OMI/AURA satellite respectively. The formulation of the models are based on global and diffuse illuminance collected at four sites in Thailand. The model coefficients are developed using three years of hourly data (2008-2010) and validated against an independent data set for 2011. Global illuminance can be predicted with a mean bias difference (MBD) and root mean square difference (RMSD) of 3.5 klx and 5.9 klx, respectively, with corresponding values for diffuse illuminance being 0.3 klx and 3.3 klx, and for direct illuminance the model can be predicted with MBD and RMSD of 2.3 klx and 8.8 klx. The performance of the proposed models is also compared with that other models reported in literature. It is found that the proposed models perform better than the others, due to more explicit treatment of atmospheric attenuation of the models. Article in Journal/Newspaper Aerosol Robotic Network eCite UTAS (University of Tasmania) Energy and Buildings 66 177 182 |
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Open Polar |
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eCite UTAS (University of Tasmania) |
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ftunivtasecite |
language |
English |
topic |
Earth Sciences Atmospheric Sciences Atmospheric Radiation |
spellingShingle |
Earth Sciences Atmospheric Sciences Atmospheric Radiation Janjai, S Nunez, M Prathumsit, J Wattan, R Sabooding, R A semi-empirical approach for the estimation of global, direct and diffuse illuminance under clear sky condition in the tropics |
topic_facet |
Earth Sciences Atmospheric Sciences Atmospheric Radiation |
description |
This paper presents semi-empirical models for estimating global, direct and diffuse illuminances under clear sky conditions in Thailand. The major components of the atmosphere causing attenuation are written explicitly. Rayleigh scattering, ozone absorption and aerosol attenuation, and the actual attenuation by each component is determined by a multilinear regression against measured data. Atmospheric constituents on aerosol optical depth and total ozone column are obtained from AERONET (Aerosol Robotic Network) and the OMI/AURA satellite respectively. The formulation of the models are based on global and diffuse illuminance collected at four sites in Thailand. The model coefficients are developed using three years of hourly data (2008-2010) and validated against an independent data set for 2011. Global illuminance can be predicted with a mean bias difference (MBD) and root mean square difference (RMSD) of 3.5 klx and 5.9 klx, respectively, with corresponding values for diffuse illuminance being 0.3 klx and 3.3 klx, and for direct illuminance the model can be predicted with MBD and RMSD of 2.3 klx and 8.8 klx. The performance of the proposed models is also compared with that other models reported in literature. It is found that the proposed models perform better than the others, due to more explicit treatment of atmospheric attenuation of the models. |
format |
Article in Journal/Newspaper |
author |
Janjai, S Nunez, M Prathumsit, J Wattan, R Sabooding, R |
author_facet |
Janjai, S Nunez, M Prathumsit, J Wattan, R Sabooding, R |
author_sort |
Janjai, S |
title |
A semi-empirical approach for the estimation of global, direct and diffuse illuminance under clear sky condition in the tropics |
title_short |
A semi-empirical approach for the estimation of global, direct and diffuse illuminance under clear sky condition in the tropics |
title_full |
A semi-empirical approach for the estimation of global, direct and diffuse illuminance under clear sky condition in the tropics |
title_fullStr |
A semi-empirical approach for the estimation of global, direct and diffuse illuminance under clear sky condition in the tropics |
title_full_unstemmed |
A semi-empirical approach for the estimation of global, direct and diffuse illuminance under clear sky condition in the tropics |
title_sort |
semi-empirical approach for the estimation of global, direct and diffuse illuminance under clear sky condition in the tropics |
publisher |
Elsevier Science Sa |
publishDate |
2013 |
url |
https://doi.org/10.1016/j.enbuild.2013.07.003 http://ecite.utas.edu.au/89208 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_relation |
http://dx.doi.org/10.1016/j.enbuild.2013.07.003 Janjai, S and Nunez, M and Prathumsit, J and Wattan, R and Sabooding, R, A semi-empirical approach for the estimation of global, direct and diffuse illuminance under clear sky condition in the tropics, Energy and Buildings, 66 pp. 177-182. ISSN 0378-7788 (2013) [Refereed Article] http://ecite.utas.edu.au/89208 |
op_doi |
https://doi.org/10.1016/j.enbuild.2013.07.003 |
container_title |
Energy and Buildings |
container_volume |
66 |
container_start_page |
177 |
op_container_end_page |
182 |
_version_ |
1765998945529495552 |