枸杞烘干箱温度场优化及仿真
目的:提高枸杞干制品品质.方法:采用标准Realizable k-ε湍流模型 进行理论分析,利用Fluent软件仿真运算并结合实验验证,探究烘干室换热温度场分布规律,并对换热参数进行优化.以温度均匀性系数以及温度分布云图为评价标准,分析换热板入口流速、换热板流道宽度、换热板流道高度、换热板间距对烘干箱温度场均匀性的影响.结果:对烘干室结构参数进行优化后,温度云图显示出的高温区面积大且比较集中,两端和中间的温度梯度小.优化后的温度标准偏差比优化前降低了0.64％,模拟值与试验值的整体趋势大体相同,其误差值为2.56％.结论:枸杞烘干温度分布均匀性最佳的工艺条件为热水入口流速0.18 m/s,流道...
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| Published in | 食品与机械 Vol. 40; no. 1; pp. 101 - 114 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
西安科技大学机械工程学院,陕西西安 710054%西安科技大学机械工程学院,陕西西安 710054
2024
宁夏链杞智汇科技有限公司,宁夏石嘴山 753400 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1003-5788 |
| DOI | 10.13652/j.spjx.1003.5788.2023.80832 |
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| Abstract | 目的:提高枸杞干制品品质.方法:采用标准Realizable k-ε湍流模型 进行理论分析,利用Fluent软件仿真运算并结合实验验证,探究烘干室换热温度场分布规律,并对换热参数进行优化.以温度均匀性系数以及温度分布云图为评价标准,分析换热板入口流速、换热板流道宽度、换热板流道高度、换热板间距对烘干箱温度场均匀性的影响.结果:对烘干室结构参数进行优化后,温度云图显示出的高温区面积大且比较集中,两端和中间的温度梯度小.优化后的温度标准偏差比优化前降低了0.64％,模拟值与试验值的整体趋势大体相同,其误差值为2.56％.结论:枸杞烘干温度分布均匀性最佳的工艺条件为热水入口流速0.18 m/s,流道高度22 mm,流道宽度35 mm,换热板间距85 mm. |
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| AbstractList | 目的:提高枸杞干制品品质.方法:采用标准Realizable k-ε湍流模型 进行理论分析,利用Fluent软件仿真运算并结合实验验证,探究烘干室换热温度场分布规律,并对换热参数进行优化.以温度均匀性系数以及温度分布云图为评价标准,分析换热板入口流速、换热板流道宽度、换热板流道高度、换热板间距对烘干箱温度场均匀性的影响.结果:对烘干室结构参数进行优化后,温度云图显示出的高温区面积大且比较集中,两端和中间的温度梯度小.优化后的温度标准偏差比优化前降低了0.64％,模拟值与试验值的整体趋势大体相同,其误差值为2.56％.结论:枸杞烘干温度分布均匀性最佳的工艺条件为热水入口流速0.18 m/s,流道高度22 mm,流道宽度35 mm,换热板间距85 mm. |
| Abstract_FL | Objective:To improve the quality of wolfberry drying.Methods:Standard Realizable k-e turbulence model was used for theoretical analysis,and fluent software was used for simulation and experimental verification to study the distribution law of heat exchange temperature field in the drying chamber,and to optimize the parameters of the heat exchange plate.The effects of heat exchanger plate inlet flow rate,heat exchanger plate runner width,heat exchanger plate runner height and heat exchanger plate spacing on the temperature field uniformity of the drying chamber were analyzed by taking the temperature uniformity coefficient and the temperature distribution cloud diagram as the evaluation criteria.Results:After the optimization of the structural parameters of the drying chamber,the temperature cloud diagram showed a large and concentrated high temperature zone,with small temperature gradients at the two ends and in the middle.The standard deviation of the temperature after optimization was reduced by 0.64％compared with that before optimization,and the overall trend of the simulated and experimental values was more or less the same,and the overall error value of the experimental and simulated values was 2.56％according to the calculation formula.Conclusion:The uniformity of temperature distribution is best when the hot water inlet flow rate is 0.18 m/s,the runner height is 22 mm,the runner width is 35 mm,and the heat exchanger plate spacing is 85 mm. |
| Author | 陈廷敏 王尔杰 于洋 蔚明强 |
| AuthorAffiliation | 西安科技大学机械工程学院,陕西西安 710054%西安科技大学机械工程学院,陕西西安 710054;宁夏链杞智汇科技有限公司,宁夏石嘴山 753400 |
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| Author_FL | CHEN Tingmin YU Mingqiang WANG Erjie YU Yang |
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| Author_xml | – sequence: 1 fullname: 于洋 – sequence: 2 fullname: 蔚明强 – sequence: 3 fullname: 王尔杰 – sequence: 4 fullname: 陈廷敏 |
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| Keywords | wolfberry 烘干箱 温度场 优化 make superior 枸杞 drying oven temperature field |
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| Title | 枸杞烘干箱温度场优化及仿真 |
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