Please use this identifier to cite or link to this item: http://archive.cmb.ac.lk:8080/xmlui/handle/70130/571
Title: Electronic Implementation of Sun Algorithm
Authors: Suraweera, S.K.K.
Jayaweera, H.H.E
Thiruparan, B.
Ariyaratne, T.R.
Issue Date: 2011
Publisher: University of Colombo
Citation: Annual Research Proceedings, University of Colombo held on June 2011
Abstract: Abstract Implementation of Solar Position Algorithm (SPA) on an electronic platform is presented. The system consists of a microcontroller and a real time clock. Solar angles according to the SPA were calculated on a computer for 5 years (for each minute). The calculated solar angles indexed according to the time and downloaded to secure digital (SD) through the microcontroller based SD card read/write system. Solar angles for any given time can be retrieved by providing the time index to the look up table recorded in the SD card. 5 MB of space is required to store such a data set for one year. The performance of this system was evaluated by interfacing to a manual sun tracking system of a parabolic trough solar concentrator. It was found to be that the maximum variation of the focal line is 1.5 cm and it is within the full acceptance angle of 3.8º
URI: http://archive.cmb.ac.lk:8080/xmlui/handle/70130/571
Appears in Collections:Science

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