Abstract
The box type hot air dryer with controlled temperature and humidity was designed. The drying machine mainly consists of internal recycle fan, heating system, humidifying equipment, weighing unit, and automatic control system. The experiment result showed that under 60 ℃ and 20% relative humidity, internal temperature and relative humidity were uniform and drying time was consistent in different positions with no significant differences. The material temperature changing curves seemed to be consistent under the same enthalpy value drying condition. Additonally, step-down relative humdity dyring method improve drying efficient a lot.
Publication Date
7-28-2020
First Page
97
Last Page
103
DOI
10.13652/j.issn.1003-5788.2020.07.020
Recommended Citation
Hao-yu, JU; Hai-yan, ZHAO; Xian-long, YU; Wei-peng, ZHANG; Hui, WANG; Zhen-jiang, GAO; and Hong-wei, XIAO
(2020)
"Design and experiment of box type hot air drier for fruits and vegetables based on temperature and humidity control,"
Food and Machinery: Vol. 36:
Iss.
7, Article 20.
DOI: 10.13652/j.issn.1003-5788.2020.07.020
Available at:
https://www.ifoodmm.cn/journal/vol36/iss7/20
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