Performance and Economic Analysis of Solar Tracking Systems for Renewable Energy-based Water Aeration

Kasama Sirisomboon, Trannatee Papharawiwan, Patipan Charoensuk

Abstract


This study develops a solar-powered water treatment aerator using single-axis tracking to evaluate energy generation and dissolved oxygen (DO) levels. The performance of three solar panel configurations was compared: an LDR-based light-tracking system, an RTC-based time-tracking system, and a fixed-angle panel. Experimental Tests conducted under partial shading from 24 March to 2 April 2025 demonstrated that the RTC-based tracking system delivered the highest daily energy output of 1.119 kWh, corresponding to the highest DO level at the end of the day at 9.2 mg/L. In comparison, the LDR-based system produced 0.845 kWh/day, and the fixed panel produced 0.754 kWh/day. The RTC tracking system also offered a short payback period for tracking system of 1.29 years and a competitive LCC of 42,830 THB, while the LDR system was less economically viable, with a 5.20-year payback and higher LCC. Overall, the RTC system provides the best balance of cost and energy gain over the 20-year lifespan.

Keywords


dissolved oxygen; fife cycle cost; partial shading; solar panel; solar tracking system

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References


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DOI: https://doi.org/10.64289/iej.25.03A11.9649115