Media Teknika
Vol 12, No 2 (2017)

Pelacak Matahari Dua Sumbu Menggunakan LDR untuk Meningkatkan Absorbsi Matahari

Elang Parikesit (Politeknik Mekatronika Sanata Dharma)
Doddy Purwadianto (Program Studi Teknik Mesin, Fakultas Sains dan Teknologi, Universitas Sanata Dharma)
FA. Rusdi Sambada (Program Studi Teknik Mesin, Fakultas Sains dan Teknologi, Universitas Sanata Dharma)



Article Info

Publish Date
01 May 2018

Abstract

The position of the sun in the sky always changes periodically. A lot of research has been doneto follow the sun's motion using a solar tracking system to increase the amount of solar energy that can be absorbed. The solar tracking system can be grouped into passive and active system. Active sun tracker system uses motor drive in following the motion of the sun. The current active tracking system is using one or two rotary axis. Active two-axis solar tracking system provides greater efficiency and effectiveness than one-axis solar tracking system. This study aims to increase the absorbable sun energy with a simpletwo-axis solar tracking system. This research has been done by experimental method by making a model of two-axis sun tracker and its field data retrieval. The main parts of the model in this study are (1) LDR sensor, (2) microcontroller and (3) motor drive. Initial data of field test results shows a maximum increase (269%) in absorbable solar energy on a model using a sun tracker than models that d o not use a solar tracking systemKeywords: tracker, sun, two-axis rotate, simple

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