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Development and performance comparison of mixed-mode solar crop dryers with and without thermal storage

Author

Listed:
  • Abubakar, S.
  • Umaru, S.
  • Kaisan, M.U.
  • Umar, U.A.
  • Ashok, B.
  • Nanthagopal, K.

Abstract

The major shortcoming of multiple trays cabinet dryer is uneven drying of the products being dried on different trays. Mixed-mode solar crop dryers with and without thermal storage materials were developed and tested under the same meteorological conditions of Zaria, Nigeria. The dimensions of the dryers were: 0.65 m, 0.30 m2, 0.9 m, 0.7 m, 1.64 m and 0.43 m for collector length, collector area, the height of the drying chamber, chimney height, length of the drying chamber and width of the drying chamber respectively. It was observed that the average drying rates, collector efficiencies, and drying efficiencies of the solar crop dryers with and without thermal storage for June and August 2016 test period are 2.71 × 10−5 kg/s and 2.35 × 10−5 kg/s, 67.25% and 40.10%, 28.75% and 24.20% respectively. As per the experimental results, the efficiency of the dryer with the storage materials is enhanced by about 13% due to the thermal storage used. The extent of the variation of the drying products on different trays was investigated using statistical t-test analysis. The p-values obtained revealed that there was no significant difference between the drying rates of the yam slices on different positions of the trays.

Suggested Citation

  • Abubakar, S. & Umaru, S. & Kaisan, M.U. & Umar, U.A. & Ashok, B. & Nanthagopal, K., 2018. "Development and performance comparison of mixed-mode solar crop dryers with and without thermal storage," Renewable Energy, Elsevier, vol. 128(PA), pages 285-298.
    • Handle: RePEc:eee:renene:v:128:y:2018:i:pa:p:285-298
    DOI: 10.1016/j.renene.2018.05.049
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    2. Erick César, López-Vidaña & Ana Lilia, César-Munguía & Octavio, García-Valladares & Isaac, Pilatowsky Figueroa & Rogelio, Brito Orosco, 2020. "Thermal performance of a passive, mixed-type solar dryer for tomato slices (Solanum lycopersicum)," Renewable Energy, Elsevier, vol. 147(P1), pages 845-855.
    3. Atalay, Halil, 2019. "Performance analysis of a solar dryer integrated with the packed bed thermal energy storage (TES) system," Energy, Elsevier, vol. 172(C), pages 1037-1052.
    4. Lakshmi, D.V.N. & Muthukumar, P. & Nayak, Prakash Kumar, 2021. "Experimental investigations on active solar dryers integrated with thermal storage for drying of black pepper," Renewable Energy, Elsevier, vol. 167(C), pages 728-739.
    5. Dake, Rock Aymar & N’Tsoukpoe, Kokouvi Edem & Kuznik, Frédéric & Lèye, Babacar & Ouédraogo, Igor W.K., 2021. "A review on the use of sorption materials in solar dryers," Renewable Energy, Elsevier, vol. 175(C), pages 965-979.
    6. Malakar, Santanu & Arora, Vinkel Kumar & Nema, Prabhat K., 2021. "Design and performance evaluation of an evacuated tube solar dryer for drying garlic clove," Renewable Energy, Elsevier, vol. 168(C), pages 568-580.
    7. Ekka, Jasinta Poonam & Bala, Krishnendu & Muthukumar, P. & Kanaujiya, Dipak Kumar, 2020. "Performance analysis of a forced convection mixed mode horizontal solar cabinet dryer for drying of black ginger (Kaempferia parviflora) using two successive air mass flow rates," Renewable Energy, Elsevier, vol. 152(C), pages 55-66.
    8. Saini, Raj Kumar & Saini, Devender Kumar & Gupta, Rajeev & Verma, Piush & Thakur, Robin & Kumar, Sushil & wassouf, Ali, 2023. "Technological development in solar dryers from 2016 to 2021-A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 188(C).
    9. Sabareesh, V. & Milan, K. John & Muraleedharan, C. & Rohinikumar, B., 2021. "Improved solar drying performance by ultrasonic desiccant dehumidification in indirect forced convection solar drying of ginger with phase change material," Renewable Energy, Elsevier, vol. 169(C), pages 1280-1293.

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