中国农业科学 ›› 2006, Vol. 39 ›› Issue (11): 2313- .

• 园艺 • 上一篇    下一篇

基于小气候模型的温室能耗预测系统研究

戴剑锋,罗卫红,李永秀,乔晓军,王成   

  1. 南京农业大学农学院
  • 收稿日期:2005-11-11 修回日期:1900-01-01 出版日期:2006-11-10 发布日期:2006-11-10
  • 通讯作者: 罗卫红 luo_weihong luo_weihong

A microclimate model-based energy consumption prediction system for greenhouse heating

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  1. 南京农业大学农学院
  • Received:2005-11-11 Revised:1900-01-01 Online:2006-11-10 Published:2006-11-10

摘要: 【目的】建立一个基于温室小气候模型的温室冬季加温所需基础能耗计算机预测系统,为进一步研究中国温室环境的优化调控提供依据。【方法】根据能量平衡原理,综合考虑作物蒸腾对温室运行能耗的影响,建立了温室加温所需基础能耗预测系统。利用温室作物蒸腾和小气候观测试验资料确定了温室小气候模型中的作物参数,并用上海两个Venlo型自控温室2001年~2003年3个冬季的实际耗煤量对系统预测结果进行了检验。【结果】对两个温室冬季加温能耗预测结果与实际耗煤量统计分析回归方程分别为(x和y分别为实际值和预测值)y=0.8526x和y=0.8321x;决定系数R2分别为0.85和0.90;相对误差分别为27%和29%。结果表明,系统对能耗预测结果与实际耗煤量趋势一致。【结论】本研究建立的温室加温能耗预测系统是建立在温室小气候模型的基础上,其原理具有普适性,因此具有通用性强的特点。

关键词: 温室, 能耗, 预测, 能量平衡, 作物蒸腾, 模型参数

Abstract: An energy consumption prediction system for greenhouse heating was developed based on a greenhouse microclimate simulation model. This system can simulate greenhouse microclimate and predict the energy consumption of greenhouse heating using the climate data outside of the greenhouse and crop information. Experimental data of crop transpiration and greenhouse microclimate were used to determine the crop parameters in the greenhouse microclimate simulation model, and actual data of heating energy consumption of two Venlo-type greenhouses in Shanghai for three winters (from October to next April of year 2001, 2002 and 2003) were used to test the system. The results show that the predicted results agree well with the actual greenhouse energy consumption. Based on the results obtained in this study, it is concluded that this system can give satisfactory predictions of greenhouse energy consumption in subtropical China.

Key words: greenhouse energy consumption, prediction, energy balance, crop transpiration, model parameter