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Numerical modeling of forced-air cooling of palletized apple: Integral evaluation of cooling efficiency

文献类型： 外文期刊

作者： Han, Jia-Wei 1 ; Zhao, Chun-Jiang 1 ; Qian, Jian-Ping 1 ; Ruiz-Garcia, Luis 4 ; Zhang, Xiang 1 ;

作者机构： 1.Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Natl Engn Lab Agriprod Qual Traceabil, Beijing 100097, Peoples R China

3.Beijing Univ Technol, Fac Informat Technol, Beijing 100124, Peoples R China

4.Univ Politecn Madrid, ETSI Agron Alimentaria & Biosistemas, Dept Ingn Agroforestal, Madrid, Spain

5.Tianjin Univ Sci & Technol, Coll Elect Informat & Automat, Tianjin 300222, Peoples R China

关键词： Apple; Forced-air cooling; Cold chain; Computational fluid dynamics (CFD); Energy consumption

期刊名称：INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID （ 影响因子：3.629； 五年影响因子：3.853 ）

ISSN： 0140-7007

年卷期： 2018 年 89 卷

页码：

收录情况： SCI

摘要： This study proposed an integrated approach to evaluate the efficiency of forced-air cooling of apples stacked on pallets. Computational fluid dynamics (CFD) modeling was used to evaluate the cooling rate, uniformity, moisture loss, and energy consumption during precooling of apples. Experiments were conducted to quantify the incidence of chilling injury. A reasonable increase in cooling rate and uniformity was obtained with an increase in air-inflow rate to 2.31 L s(-1) kg(-1); any further increase in air-inflow rate will lead to a relatively low increase in cooling rate and uniformity, but a significant increase in energy consumption and cooling injury. An exponential relationship exists between fan power (P-w) and pressure differential (Delta P) as well as between total fan energy consumption (E-c) and air-inflow rate (E-c = hx(k)). Finally, the mass loss of fruit is primarily influenced by cooling time rather than air-inflow rate. (C) 2018 Elsevier Ltd and IIR. All rights reserved.

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