Design and experiment of Penaeus vannamei freezing point and low temperature heat pump drying control system based on fuzzy control

Authors

WANG Guo-jie, College of Mechanical and Power Engineering, Dalian Ocean University, Dalian, Liaoning 116023, China; College of China & New Zealand Collaboration, Dalian Ocean University, Dalian, Liaoning 116023, China
MU Gang, College of Mechanical and Power Engineering, Dalian Ocean University, Dalian, Liaoning 116023, China; College of China & New Zealand Collaboration, Dalian Ocean University, Dalian, Liaoning 116023, China; Marine Fishery Equipment Professional Technology Innovation Center of Liaoning Province, Dalian, Liaoning 116023, China
HUO Jin, College of Mechanical and Power Engineering, Dalian Ocean University, Dalian, Liaoning 116023, China; College of China & New Zealand Collaboration, Dalian Ocean University, Dalian, Liaoning 116023, China
ZHANG Qian, College of Mechanical and Power Engineering, Dalian Ocean University, Dalian, Liaoning 116023, China; College of China & New Zealand Collaboration, Dalian Ocean University, Dalian, Liaoning 116023, China; Marine Fishery Equipment Professional Technology Innovation Center of Liaoning Province, Dalian, Liaoning 116023, China
ZHANG Guo-chen, College of Mechanical and Power Engineering, Dalian Ocean University, Dalian, Liaoning 116023, China; College of China & New Zealand Collaboration, Dalian Ocean University, Dalian, Liaoning 116023, China; Marine Fishery Equipment Professional Technology Innovation Center of Liaoning Province, Dalian, Liaoning 116023, China

Abstract

Objective: In order to meet the refined requirements of temperature during the drying process of Penaeus vannamei freezing point and low temperature heat pump. Methods: A heat pump drying control system based on Siemens S7-300 PLC was designed. The system adopted a fuzzy control strategy. And a fuzzy controller with “two-dimensional input and one-dimensional output” was designed using the fuzzy logic toolbox of Matlab. According to the drying process of prawns, a data collection program and an execution program were designed to control the temperature of the drying oven. And the drying process was monitored and managed through the human-machine interface to realize automatic temperature control. Results: The temperature difference of freezing point temperature drying oven under fuzzy control was within 0.8 ℃, and that of low temperature drying oven was within 1.1 ℃. Compared with PID control, the temperature fluctuation range was reduced by 46.7% and 57.7% respectively. The dry test results of Penaeus vannamei showed that the freezing point and low temperature heat pump drying could effectively remove the moisture in the prawn, and better retain its color, whcih has certain advantages in shrinkage and rehydration. Conclusion: The control system operated stably and could quickly adjust the temperature of the drying oven. The control precision of the control system was high. And the control effect of this system was good.

Publication Date

7-28-2021

First Page

94

Last Page

101

DOI

10.13652/j.issn.1003-5788.2021.07.015

Recommended Citation

Guo-jie, WANG; Gang, MU; Jin, HUO; Qian, ZHANG; and Guo-chen, ZHANG (2021) "Design and experiment of Penaeus vannamei freezing point and low temperature heat pump drying control system based on fuzzy control," Food and Machinery: Vol. 37: Iss. 7, Article 15.
DOI: 10.13652/j.issn.1003-5788.2021.07.015
Available at: https://www.ifoodmm.cn/journal/vol37/iss7/15

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