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构建南疆戈壁石砌筑日光温室热环境动态变化数值模型,更好地分析和评价戈壁日光温室蓄热保温性能,为优化温室设计与建造提供重要依据。结合工程热物理和温室环境工程等理论,构建戈壁石日光温室墙体和土壤二维传热的动态数值模型,并通过在南疆克孜勒苏柯尔克孜自治州戈壁石砌筑日光温室的室内、墙体以及土壤进行多点、连续温度采集,与模拟结果进行比较,验证模型的准确性。实测数据与模拟结果相关性分析显示,连续5d模拟得到的室内空气、墙体表面以及土壤表面温度与实测数据呈现相同的变化规律,相关系数均在0.9以上,且模拟值与实测值之间的平均绝对误差在1.2~2.3℃范围内。表明所建的二维传热模型能较准确地模拟和预测戈壁石砌筑的日光温室内空气温度、墙面和土壤表面温度的变化规律,可以为该种类型温室的热环境及保温性能评估提供有效地参考依据。
To build a numerical model of the thermal environment of the solar greenhouse in Gobi, southern Xinjiang, to better analyze and evaluate the heat storage and thermal insulation properties of the Gobi solar greenhouse, and to provide an important basis for the optimization of greenhouse design and construction. Based on the theories of engineering thermophysics and greenhouse environment engineering, the dynamic numerical model of two-dimensional heat transfer of wall and soil in Gobi stone solar greenhouse was established. Through the analysis of the indoor and wall of the solar greenhouse in Gobi, Kizilsu Kirgiz Autonomous Prefecture, Body and soil multi-point, continuous temperature acquisition, and simulation results were compared to verify the accuracy of the model. The correlation analysis between measured data and simulation results showed that the indoor air, wall surface and soil surface temperature simulated by continuous 5d show the same variation with the measured data, the correlation coefficients are all above 0.9, and the difference between the simulated value and the measured value The average absolute error in the range of 1.2 ~ 2.3 ℃. The results show that the proposed two-dimensional heat transfer model can accurately simulate and predict the variation of air temperature, wall surface and soil surface temperature in solar greenhouse of Gobi mural masonry, which can be used to evaluate the thermal environment and thermal insulation performance of this type of greenhouse Provide an effective reference basis.