Preliminary communication

https://doi.org/10.15255/KUI.2013.011

A Method for Optimizing Technical Parameters of the Vacuum Freeze-Drying Process

X.-M. Qian ; College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Kina
W.-R. Huang ; College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Kina
P.-H. Lou ; College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Kina

Abstract

Vacuum freeze-drying is a technique that makes a material dehydrate at low temperature and low pressure, and it has many merits. A control system is designed and developed based on a certain area freeze-drying machine. A test by the control system is done to optimize the freeze-drying technical parameters. According to the test results, by the method of quadratic orthogonal experiment, the key parameters, including duration, temperature and vacuum of freeze-drying, are analysed and optimized. The test proves the optimized parameters valid for certain vacuum freeze-drying machines and certain bacterins. Furthermore, the optimized parameters show that the vacuum freeze-drying method is useful for any area vacuum freeze-drying machine and any bacterin.

Keywords

Vacuum freeze-drying; control system; technical parameters; optimizing

Hrčak ID:

123795

URI

https://hrcak.srce.hr/123795

Publication date:

1.7.2014.

Article data in other languages: croatian

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