食品与发酵工业 >

2025 , Vol. 51 >Issue 2: 118 - 125

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.038583

研究报告

基于计算流体动力学的二氧化硫压差熏蒸模型在鲜食葡萄保鲜中的应用研究

  • 王成炜 ,
  • 袁宇尧 ,
  • 张政 ,
  • 张浩 ,
  • 赵振宇 ,
  • 魏佳 ,
  • 吴斌
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  • 1(新疆农业大学 食品科学与药学学院,新疆 乌鲁木齐,830052)
    2(新疆农业科学院,农产品贮藏加工研究所,新疆农产品加工与保鲜重点实验室,新疆 乌鲁木齐,830091)
第一作者:硕士研究生(魏佳副研究员与吴斌研究员为共同通信作者,E-mail:emma_van001@sina.com;xjuwubin0320@sina.com)

收稿日期: 2024-01-14

  修回日期: 2024-04-07

  网络出版日期: 2025-02-14

基金资助

国家自然科学基金(U2003213);自治区科技创新领军人才项目一高层次领军人才(2022TSYCLJ0040);自治区重点研发计划(2022B02026);自治区重大科技专项(2022A02006);新疆农业科学院农业科技创新稳定支持专项(xjnkywdzc-2023003)

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Application research of sulfur dioxide differential pressure fumigation model based on computational fluid dynamics in table grape preservation

  • WANG Chengwei ,
  • YUAN Yuyao ,
  • ZHANG Zheng ,
  • ZHANG Hao ,
  • ZHAO Zhenyu ,
  • WEI Jia ,
  • WU Bin
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  • 1(College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi 830052, China)
    2(Xinjiang Key Laboratory of Agricultural Products Processing and Preservation, Institute of Agro-Products Storage and Processing, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China)

Received date: 2024-01-14

  Revised date: 2024-04-07

  Online published: 2025-02-14

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摘要

该文以提升SO2对鲜食葡萄保鲜的熏蒸效率为切入点,对比压差熏蒸与常压熏蒸的差异性,采用计算流体动力学软件FLUENT建立SO2压差熏蒸模型。模拟分析结果得出,对比常压熏蒸,基于压力差作用,压差熏蒸垂直流过包装箱的气体流速更大,厢体内部的SO2气体更加迅速均匀地穿过包装箱。通过模拟与试验的风速与SO2气体分布情况对比分析,结果试验与模拟吻合度较高。SO2压差熏蒸处理可有效维持葡萄果实的硬度,抑制果梗褐变指数、果实腐烂率及落粒率的增加,较好地保持了葡萄果实的品质,延缓果实衰老,提升了对熏蒸剂的利用率,为压差熏蒸保鲜技术在葡萄采后中的应用提供理论支持。

关键词： 压差熏蒸; 葡萄; 数值模拟; 保鲜; 计算流体动力学

本文引用格式

王成炜 , 袁宇尧 , 张政 , 张浩 , 赵振宇 , 魏佳 , 吴斌 . 基于计算流体动力学的二氧化硫压差熏蒸模型在鲜食葡萄保鲜中的应用研究[J]. 食品与发酵工业, 2025 , 51(2) : 118 -125 . DOI: 10.13995/j.cnki.11-1802/ts.038583

Abstract

This study aims to enhance the fumigation efficiency of SO2 for table grape preservation by comparing differential and atmospheric pressure fumigation.A computational fluid dynamics (CFD) model using FLUENT software was developed to simulate SO2 differential pressure fumigation.The simulation results indicated that differential pressure fumigation, driven by pressure differences, exhibited greater vertical flow rates.Therefore, SO2 gas passed through the packaging box faster and distributed more smoothly within the box than atmospheric pressure fumigation.Through comparing the wind speed and SO2 gas distribution, the simulation and experimental results displayed a high degree of agreement.SO2 differential pressure fumigation kept the firmness and suppressed stem browning index, decay rate as well as shattering rate increase.Differential pressure enhanced fumigant utilization efficiency and maintained postharvest quality of table grape.This research offers theoretical support for implementing differential pressure fumigation technology in grape postharvest industry.

Key words： differential pressure fumigation; grape; numerical simulation; preservation; computational fluid dynamics

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