A new design method of dairy falling-film evaporators based on uncertainty theory

Authors

ZHANG Xia, Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment, Tianjin 300222, China; College of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin 300222, China
TIAN Wei, Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment, Tianjin 300222, China; College of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin 300222, China
ZHU Chuan-qi, Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment, Tianjin 300222, China; College of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin 300222, China
ZHANG An-chao, Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment, Tianjin 300222, China; College of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin 300222, China
WU Hai-bin, Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment, Tianjin 300222, China; College of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin 300222, China

Abstract

In the process design of falling film evaporator, there are uncertainties in the design parameters and heat transfer model, which increases the difficulty of falling film evaporator design. Therefore, based on the Monte Carlo uncertainty method, the influence of the uncertainty of the parameters and the model in the three-effect falling film evaporator of dairy products on the design results is studied. The results showed that, compared with parameter uncertainty, the change of evaporator heat transfer performance caused by model uncertainty was more significant. By comprehensively considering the influence of parameter uncertainty and model uncertainty, a model ensembling method was proposed to reduce model uncertainty and improve model prediction reliability. The heat transfer area of the evaporator was selected based on different design probabilities, which provided a theoretical basis for the design and operation of the evaporator under different design conditions and different operating conditions.

Publication Date

1-28-2021

First Page

108

Last Page

113

DOI

10.13652/j.issn.1003-5788.2021.01.017

Recommended Citation

Xia, ZHANG; Wei, TIAN; Chuan-qi, ZHU; An-chao, ZHANG; and Hai-bin, WU (2021) "A new design method of dairy falling-film evaporators based on uncertainty theory," Food and Machinery: Vol. 37: Iss. 1, Article 17.
DOI: 10.13652/j.issn.1003-5788.2021.01.017
Available at: https://www.ifoodmm.cn/journal/vol37/iss1/17

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