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This article presents the results of computational research and design for manufcture a solar dryer model of forced convection greenhouse technology with capacity of 01 kg per batch. The model is calculated and designed for drying sliced carrots with its thickness of 3 mm, the initial material moisture content (MC) of 87.606% and finished product (MC) of 10%. Caculation results obtained, including the specific heat (qrdr) is 10615 kJ/kg moisture, the specific mass of drying agent (lrdr) is 741.28 kg dried air/kg of moisture, the theoretical drying rate is 10.026%/h, the total drying time is 14.26 h, in which the drying time of the period of time for the content rate is 3.24 h and the falling rate time phase is 11.02 h. The model parameters is designed such as: drying chamber volume 0.036 m3 including 2 drying trays, the each tray area of 0.0984 m2 and the drying material height of each tray is 2 cm. The axial fan which used to mixed air and released air in the drying chamber has its flow rate of 0.032 m3/s, its power of 10 W and 220 V with quantity of 02 sets. The air temperature in the greenhouse is maintained for calculation of 40 ℃.

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Research, Calculation and Design a Force Convection Greenhouse Technology Drying Models for Sliced Carrots

  • 会议论文

  • 发表日期：

    2025年

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  • Bui Trung Thanh,
  • Tran Thanh Vu,
  • Nguyen Ba Linh,
  • Phan Thanh Loc,
  • Tran The Binh,
  • Bui Viet Đuc

摘要

This article presents the results of computational research and design for manufcture a solar dryer model of forced convection greenhouse technology with capacity of 01 kg per batch. The model is calculated and designed for drying sliced carrots with its thickness of 3 mm, the initial material moisture content (MC) of 87.606% and finished product (MC) of 10%. Caculation results obtained, including the specific heat (qrdr) is 10615 kJ/kg moisture, the specific mass of drying agent (lrdr) is 741.28 kg dried air/kg of moisture, the theoretical drying rate is 10.026%/h, the total drying time is 14.26 h, in which the drying time of the period of time for the content rate is 3.24 h and the falling rate time phase is 11.02 h. The model parameters is designed such as: drying chamber volume 0.036 m3 including 2 drying trays, the each tray area of 0.0984 m2 and the drying material height of each tray is 2 cm. The axial fan which used to mixed air and released air in the drying chamber has its flow rate of 0.032 m3/s, its power of 10 W and 220 V with quantity of 02 sets. The air temperature in the greenhouse is maintained for calculation of 40 ℃.