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SETSCI - Volume 1 (2017)
ISMSIT2017 - International Symposium on Multidisciplinary Studies and Innovative Technologies, Tokat, Turkey, Dec 02, 2017

Determination of Percentile Sunlit Time of a Rooftop using the VI-Suite (ISMSIT2017_38)
Hakan Aydoğan1*, Mehmet Feyzi Özsoy2
1Usak University, Uşak, Turkey
2Usak University, Uşak, Turkey
* Corresponding author: hakan.aydogan@usak.edu.tr
Published Date: 2017-12-08   |   Page (s): 163-166   |    146     3

ABSTRACT The aim of this study is to determine instantaneous irradiance and annual percentile sunlit time on the available rooftop floor area of Technical and Social Science Vocational School at Usak University by simulation using open source software. The building of Technical and Social Science Vocational School at Usak University has been drawn and rotated as in the real location using the Blender which is open source 3D drawing software. The available rooftop floor area has been marked as a vi-sensor and the rest has been marked as a vi-geometry using the VI-Suite add-on in the Blender. The location info and the related nodes have been connected and set in the note editor to simulate the instantaneous irradiance and annual percentile sunlit time on the available rooftop floor area using the VI-Suite add-on. The instantaneous irradiance of the area can be calculated through desired hours and days info. The irradiance has been calculated up to 600 Watt per squares meter depending on the sun position and building parts for the first day of the year and local solar time on 12:00. The annual percentile sunlit time of the area has been calculated up to 79 % in case of the solar elevation angle greater than zero during a year.  
KEYWORDS VI-Suite, sunlit, solar, irradiance, simulation
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