WANG Xu,LIU Huiying,YANG Xinting,et al.A Simple Light Radiation Calculation Model in Solar Greenhouse[J].Northern Horticulture,2016,40(23):73-77.[doi:10.11937/bfyy.201623017]
日光温室光辐射计算简便模型研究
- Title:
- A Simple Light Radiation Calculation Model in Solar Greenhouse
- Keywords:
- solar greenhouse; light environment model; light radiation intensity of illumination; poor sunshine; disaster prevention and mitigation
- 文献标志码:
- A
- 摘要:
- 以“京研迷你2 号”黄瓜品种为试材，采用非线性回归的方法，建立了模拟任意时刻日光温室内各表面中的任意点的光辐射照度的模型，并设计了室内直接辐射与散射辐射的模拟计算方法。结果表明：日光温室内光辐射照度实测值与模拟值晴天的决定系数（R2=0.995 2，RMSE=8.841 2，RE=0.159 5，AE=3.413 2）比寡照的决定系数（R2=0.968 4，RMSE=12.015 6，RE=0.075 6，AE=7.573 3）高。在晴天的情况下，实测值的辐射照度在07：30时才有23 W?m-2?s-1，而在寡照的情况下，时间为08：00时为62 W?m-2?s-1，寡照情况比晴天的日照要落后30 min。在寡照的情况下，当12：00时实测值为226 W?m-2?s-1，模拟值为237 W?m-2?s-1，而在晴天的情况下，当12：00时实测值为404 W?m-2?s-1，模拟值为400.257 W?m-2?s-1，寡照的太阳辐射比晴天的太阳辐射低一半。因此可以用太阳辐射照度的预测模型来预测温室内的太阳辐射。
- Abstract:
- Taking ‘Jingyan Mini 2’ cucumber as experiment material，simulated the illumination of light at any point in the surface of the solar greenhouse at any time by using nonlinear regression method was studied，and established one model，and designed the indoor simulation calculation method of the direct radiation and scatter radiation.The results showed that the simulated values and measured values of the radiation intensity of illumination decision coefficient of sunny day (R2=0.995 2，RMSE=8.841 2，RE=0.159 5，AE=3.413 2) were higher than decision coefficient of poor sunshine (R2=0.968 4，RMSE=12.015 6，RE=0.075 6，AE=7.573 3).In sunny day，the radiation intensity of illumination measured was 23 W?m-2?s-1 at 7:30 am，but the value was 62 W?m-2?s-1 at 8:00 am in poor sunshine，poor sunshine which was 30 minutes later than the sunny.In poor sunshine situation，the measured value was 226 W?m-2?s-1and the simulation value was 237 W?m-2?s-1 at 12:00，but the measured value was 404 W?m-2?s-1 and the simulation value was 400.257 W?m-2?s-1 at in sunny situation，the sun′s radiation was half less in poor sunshine day than that in a sunny day.Therefore，the light radiation in the solar greenhouse could be predicted by the model of solar irradiance.
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备注/Memo
第一作者简介：王旭（1990-），男，硕士研究生，研究方向为园艺病虫害预警方法及系统。E-mail：wangxu.shzdx@foxmail.com. 责任作者：李明（1982-），男，山东济南人，博士，副研究员，现主要从事温室蔬菜病害预警方法及系统等研究工作。E-mail：lim@nercita.org.cn. 基金项目：国家自然科学基金资助项目（31401683）。