Porous medium modeling and parameter sensitivity analysis of 1-MCP distribution in boxes with apple fruit

被引：34

作者：

Ambaw, Alemayehu ^{[1
]}

Verboven, Pieter ^{[1
]}

Defraeye, Thijs ^{[1
]}

Tijskens, Engelbert ^{[1
]}

Schenk, Ann ^{[1
]}

Opara, Umezuruike Linus ^{[2
]}

Nicolai, Bart M. ^{[1
,3
]}

机构：

[1] Katholieke Univ Leuven, BIOSYST MeBioS, B-3001 Louvain, Belgium

[2] Univ Stellenbosch, Fac AgriSci, South African Chair Postharvest Technol, Postharvest Technol Res Lab, ZA-7602 Stellenbosch, South Africa

[3] Flanders Ctr Postharvest Technol, B-3001 Louvain, Belgium

来源：

JOURNAL OF FOOD ENGINEERING | 2013年 / 119卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

Postharvest; Fruit ripening; Adsorption kinetics; Porous medium; CFD; Cold storages; MASS-TRANSFER; AIR-FLOW; NONTARGET MATERIALS; DISCRETE ELEMENT; HEAT-TRANSFER; 1-METHYLCYCLOPROPENE; KINETICS; BULK;

D O I：

10.1016/j.jfoodeng.2013.05.007

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

1-methylcyclopropene (1-MCP) is a gas used commercially in cold storage rooms to delay ripening of fruit. It is currently not known how the gas distributes in the bins and is taken up by the fruit. Here a porous-medium model is developed based on volume averaging of the transport equations of momentum and 1-MCP in the air and product. The proposed model was compared with experimental data and validated direct-CFD model. The velocity field in and around the stack were well reproduced by the porous medium model. Concentration predictions were in average 4% and maximally 7% over the average measured values. The porous medium model also agrees well with the direct-CFD model. Influential model parameters were identified through parameter sensitivity study. Porosity, skin mass transfer coefficient and specific surface area strongly affect the simulation. Accordingly model simplifications were suggested and recommended for commercial cold storage rooms. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：13 / 21

页数：9

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