循环风幕式半导体制冷果蔬展示柜设计与试验

赵俊宏; 陆华忠; 魏鑫钰; 余乔东; 周星星; 李 斌

文章摘要

赵俊宏，陆华忠，魏鑫钰，余乔东，周星星，李斌.循环风幕式半导体制冷果蔬展示柜设计与试验[J].广东农业科学,2022,49(4):154-163

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Design and Experiment of Fruit and Vegetable Display Cabinet with Cyclic Air Curtain Semiconductor Refrigeration

DOI：10.16768/j.issn.1004-874X.2022.04.018

中文关键词: 菜心展示柜循环风幕半导体制冷变频控制

英文关键词: Flowering cabbage display cabinet cyclic air curtain semiconductor refrigeration frequency conversion control

基金项目:岭南现代农业实验室科研项目（NT2021009）；广东省农业科技创新及推广体系建设项目（2020KJ256）；广东省农业科学院院长基金（201940）；广东省农业科学院科技人才引进转向资金（R2019YJ-YB3003）；广东省农业科学院协同创新中心项目（XTXM202201)

作者	单位
赵俊宏，陆华忠，魏鑫钰，余乔东，周星星，李斌

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中文摘要:

【目的】为提高菜心保鲜品质、延长货架期，设计一种循环风幕式半导体制冷展示柜。【方法】展示柜以菜心为展示对象，建立基于柜内外传热的热负荷模型，并通过试验验证循环风幕式半导体制冷展示柜的保鲜效果。【结果】菜心展销 27 h 后，循环风幕式半导体制冷展示柜、敞开式陈列柜、常温陈列 3 种展销方式的质量损失率分别为 9.3%、20.6%、34.8%，好菜率分别为 35.8%、0、0，感官评定分数分别为 2.17、 1.08、0，SPAD 值变化区间范围在 46~54 之间；采用循环风幕式半导体制冷展示柜的菜心在展销 3 h 后质量损失率显著低于其他 2 种方式；展销 6 h 后好菜率及感官评定显著高于另外 2 种方式。【结论】循环风幕式半导体制冷展示柜对菜心的保鲜效果较好，可有效降低菜心的质量损失率，并显著提高好菜率，为菜心展销装备设计及研究提供参考。

英文摘要:

【Objective】In order to improve the preservation quality and prolong the shelf life of flowering cabbage, a kind of display cabinet with cyclic air curtain semiconductor refrigeration was designed. 【Method】The display cabinet was taken as the display object, a heat load model based on internal and external heat transfer of the cabinet was established, and the fresh-keeping effect of the display cabinet with cyclic air curtain semiconductor refrigeration was verified by experiments.【Result】After 27 h of display, mass loss rates of three display modes (display cabinet with cyclic air curtain semiconductor refrigeration, open display cabinet and room temperature display) were 9.3%, 20.6% and 34.8%, respectively. The good vegetable rates were 35.8%, 0 and 0, respectively. And the sensory evaluation scores were 2.17, 1.08, 0, respectively. The SPAD values of the three display modes varied between 46 and 54. The mass loss rate of flowering cabbage with cyclic air curtain display cabinet was significantly lower than that of the other two modes after 3 h of display. After 6 h of display, the good vegetable rate and sensory evaluation score were significantly higher than those of the other two modes. 【Conclusion】With the flowering cabbage as display object in display cabinet, a heat load model based on internal and external heat transfer of the cabinet is established, and the display cabinet with cyclic air curtain semiconductor refrigeration has a good fresh-keeping effect on flowering cabbage.

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