Influence of different mode of liquid supply on the temperature field of evaporated plate

Authors

HE Weidong, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai 201306, China
WAN Jinqing, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai 201306, China
HUANG Minglei, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai 201306, China
GE Rui, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai 201306, China

Abstract

This paper studied the temperature distribution of different mode of liquid supply in plate freezer under the same working condition, and analyzed the reasons for the inequality freezing rate of the flat plate. The freezing experiment of the fluid supply with ejector and the expansion valve at the same condense temperature in 35 ℃ was carried out respectively. The results showed that: at the end of freezing, the minimum temperature reached to -35.9 ℃ by using expansion valve, and the maximum temperature difference of frozen products was 17.55 ℃. The temperature difference of each layer was large, and the temperature distribution of plate was chaotic. In mode of ejector supplying liquid, frozen temperature distribution was uniform, the maximum temperature difference was 5.54 ℃ at the end of experiment. Meanwhile, each layer plate of temperature decreases gradually from top to bottom, freezing rate increases gradually, and the bottom plate freezing time was shorter than the top about 9.1%. To a certain extent, this study can prove the effect of the temperature difference distribution of the evaporated plate on the freezing time and energy consumption.

Publication Date

5-28-2018

First Page

98

Last Page

100,197

DOI

10.13652/j.issn.1003-5788.2018.05.020

Recommended Citation

Weidong, HE; Jinqing, WAN; Minglei, HUANG; and Rui, GE (2018) "Influence of different mode of liquid supply on the temperature field of evaporated plate," Food and Machinery: Vol. 34: Iss. 5, Article 20.
DOI: 10.13652/j.issn.1003-5788.2018.05.020
Available at: https://www.ifoodmm.cn/journal/vol34/iss5/20

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