粮油食品科技

中国科技核心期刊

基于温湿度场云图的稻谷粮堆状态和结露风险分析
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Analysis of Storage State and Condensation Risk of Paddy Pile Based on Temperature and Humidity Field Cloud Map
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    摘要:

    以稻谷为研究对象,利用温湿度一体传感器,模拟实际粮仓中容易发生结露区域以开展不同位点的监测,测得从冬季到夏季粮堆不同位点的温度和相对湿度;运用矩阵实验模拟软件(MATLAB)绘制粮堆温度场、湿度场云图,追溯分析了稻谷温湿度场分布及时空变化;基于粮食平衡绝对湿度与露点温度等模型(CAE模型)推算了稻谷粮堆危险点所处的不同状态(平衡态、饱和态、吸附态或解吸态)和探究其变化规律,为减小储粮损耗和实现储粮安全提供理论依据。

    Abstract:

    Taking paddy as the research object, the integrated temperature and humidity sensors was used to carry out monitoring at different condensation prone locations by simulation of the actual granary. The temperature and relative humidity of different positions of grain stack from winter to summer were measured. Then the cloud map of the temperature field and humidity field of the paddy pile were drawn using Matrix Laboratory simulation software (abbreviated as MATLAB) to analyze the distribution of temperature and humidity fields of paddy. Based on the model of grain equilibrium absolute humidity and dew point temperature (CAE model), the different states (equilibrium state, saturation state, adsorption state or desorption state) of the dangerous point of rice pile were calculated, and the change rules were explored. The results of this paper will provide a theoretical basis for reducing grain storage loss and realizing grain storage safety.

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王水寒,李瑞敏,张洪清,金 毅,姚 渠,尹 君*.基于温湿度场云图的稻谷粮堆状态和结露风险分析[J].粮油食品科技,2021,29(4):219-225.

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  • 在线发布日期: 2021-07-29
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