Title :
Assessment and modeling of the daylight efficacy in Thailand
Author :
Laspho, Litthanoulok ; Chaiwiwatworakul, Pipat
Author_Institution :
Joint Grad. Sch. of Energy & Environ., King Mongkut´´s Univ. of Technol. Thonburi, Bangkok, Thailand
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.
Keywords :
daylighting; renewable energy sources; Bangkok; Thailand; daylight efficacy; daylight illuminance measurement; luminous efficacy; solar irradiance; statistical data; Buildings; Performance evaluation; Clearness index and Brightness index; Diffuse efficacy; Global efficacy; Mean Bias Difference (MBD); Root Mean Square Difference (RMSD);
Conference_Titel :
Clean Energy and Technology (CET), 2011 IEEE First Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4577-1353-8
DOI :
10.1109/CET.2011.6041467
