Drying performance and energy consumption of Camelliaoleifera seeds under microwave-vacuum drying

被引:14
|
作者
Zhang, Dongyan [1 ]
Huang, Dan [1 ]
Zhang, Xiyang [1 ]
Zhao, Hangyi [1 ]
Gong, Guiliang [1 ]
Tang, Xiaohong [1 ]
Li, Lijun [1 ]
机构
[1] Cent South Univ Forestry & Technol, Dept Mech & Elect Engn, Changsha 410004, Hunan, Peoples R China
关键词
Drying performance; Energy consumption; Camelliaoleifera seeds; Microwave-vacuum drying; Drying model; KINETICS; OPTIMIZATION; TEMPERATURE; OIL;
D O I
10.1007/s10068-022-01239-0
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Microwave-vacuum drying performance and energy consumption of Camelliaoleifera seeds were studied in this paper. The effects of microwave power, vacuum pressure and loading quantity were evaluated and discussed. Orthogonal experiments were also conducted to optimize the drying process. A new drying model based on the weibull distribution model was developed. Results showed that the microwave-vacuum drying process was dominated by internal water diffusion and surface water evaporation. As the microwave power and vacuum pressure increased and the loading quantity decreased, the drying time and energy consumption both decreased. However, too low or too high microwave power would increase the energy consumption. The optimal microwave-vacuum drying conditions were found to be a loading quantity of 150 g, a microwave power of 350 W and a vacuum pressure of 0.09 MPa. The developed drying model and the calculated scale and shape parameter were all consistent with experimental results.
引用
收藏
页码:969 / 977
页数:9
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