Assessment and modeling of the daylight efficacy in Thailand

Conference proceedings article

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Publication Details

Author list: Laspho L., Chaiwiwatworakul P.

Publisher: Hindawi

Publication year: 2011

Start page: 219

End page: 224

Number of pages: 6

ISBN: 9781457713545

ISSN: 0146-9428

eISSN: 1745-4557

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-80055032165&doi=10.1109%2fCET.2011.6041467&partnerID=40&md5=4814c2bdac9a426637a45ad047d625fc

Languages: English-Great Britain (EN-GB)

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Abstract

This research aims to study the characteristics of the daylight efficacy in Thailand. With the solar irradiance and daylight illuminance measurement at a station in Bangkok, the statistical data of the hourly mean values of the efficacy of global and diffuse horizontal components were derived. This study explores the variations of daylight efficacy with climate conditions as well as the correlations with some insolation parameters. Evaluation of prediction performances of the efficacy models proposed by various authors show that no model is suitable for Thailand. Therefore, new models for luminous efficacy were proposed for Thailand. ฉ 2011 IEEE.

Keywords

Clearness index and Brightness index, Diffuse efficacy, Global efficacy, Mean Bias Difference (MBD), Root Mean Square Difference (RMSD)