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首页> 外文期刊>International Agricultural Engineering Journal >Drying of agricultural produce in a greenhouse type solar dryer
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Drying of agricultural produce in a greenhouse type solar dryer

机译：在温室型太阳能干燥机中干燥农产品

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A study was conducted to characterize the drying process in a greenhouse type solar dryer using either natural or forced ventilation. A 4 m high circular black polyethylene stack attached to the dryer produced an air flow rate of 0.1 m~3/s in the experimental dryer. A three-tier drying rack (1 m × m ×2.5 m) was installed in the greenhouse type solar dryer for multi-tiered drying of agricultural produce. Rewetted mustard was dried, both in the solar dryer and in the open sun. Drying of mustard under natural ventilation and forced ventilation was faster than that in the open sun by about 20 and 45% respectively. The drying data were well represented by Page's drying equation (r~2 = 0.6 to 0.93). The drying coefficients ‘k’and ‘n’in the equationcould not be correlated well with drying environmental parameters in this field study. The capacity of the greenhouse type solar dryer varied between 391 (natural ventilation) to 4861 kg/day (forced ventilation).
机译：进行了一项研究，以表征使用自然通风或强制通风的温室型太阳能干燥机的干燥过程。连接到干燥机的4 m高的圆形黑色聚乙烯叠层在实验干燥机中产生的空气流量为0.1 m〜3 / s。在温室型太阳能干燥机中安装了一个三层干燥架（1 m×m×2.5 m），用于农产品的多层干燥。在太阳能干燥机和阳光直射的情况下，将重新润湿的芥末干燥。在自然通风和强制通风下，芥菜的干燥速度分别比在阳光直射下快约20％和45％。干燥数据可以用佩奇的干燥方程很好地表示（r〜2 = 0.6到0.93）。在该田间研究中，方程式中的干燥系数“ k”和“ n”不能与干燥环境参数很好地相关。温室型太阳能干燥机的容量在391（自然通风）至4861 kg /天（强制通风）之间变化。

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