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Investigation of the effects of solar tracking system on performance of the solar air dryer

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  • Das, Mehmet
  • Akpinar, Ebru Kavak

Abstract

Design of the collector in solar air collector dryer (SACD) system is very important factor for high drying performance and the effective use of solar radiation. The main purpose of this study is to increase the thermal efficiency of the solar air collector (SAC) by adding a two-direction solar tracking feature supported by programmable logic controller (PLC) to the SAC. A movable SAC and fixed SAC with same dimensions were designed and integrating both collectors into the drying cabinet, generating two different SACDs. Semielliptical sliced products were dried at similar air flow rate and ambient conditions in both drying systems. The results indicated the highest SAC thermal efficiency was 91% in the SACD with solar tracking feature, while the lowest SAC thermal efficiency was 34% in the other SACD. In addition, the drying process in the solar tracking feature SACD was performed with an average drying efficiency of 66%, while the fixed SACD was performed with an average drying efficiency of 32%. Based on the results, the main role of PLC solar tracking feature in SACD system is to increase the average thermal efficiency by 42% and to double the average drying efficiency.

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  • Das, Mehmet & Akpinar, Ebru Kavak, 2021. "Investigation of the effects of solar tracking system on performance of the solar air dryer," Renewable Energy, Elsevier, vol. 167(C), pages 907-916.
    • Handle: RePEc:eee:renene:v:167:y:2021:i:c:p:907-916
    DOI: 10.1016/j.renene.2020.12.010
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    References listed on IDEAS

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    2. Ayyildiz, Ertugrul, 2022. "Fermatean fuzzy step-wise Weight Assessment Ratio Analysis (SWARA) and its application to prioritizing indicators to achieve sustainable development goal-7," Renewable Energy, Elsevier, vol. 193(C), pages 136-148.
    3. Çiftçi, Erdem & Khanlari, Ataollah & Sözen, Adnan & Aytaç, İpek & Tuncer, Azim Doğuş, 2021. "Energy and exergy analysis of a photovoltaic thermal (PVT) system used in solar dryer: A numerical and experimental investigation," Renewable Energy, Elsevier, vol. 180(C), pages 410-423.
    4. Huilin Shang & Wei Shen, 2023. "Design and Implementation of a Dual-Axis Solar Tracking System," Energies, MDPI, vol. 16(17), pages 1-13, August.
    5. Khanlari, Ataollah & Sözen, Adnan & Afshari, Faraz & Tuncer, Azim Doğuş, 2021. "Energy-exergy and sustainability analysis of a PV-driven quadruple-flow solar drying system," Renewable Energy, Elsevier, vol. 175(C), pages 1151-1166.

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