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Pseudo bond graph tunnel greenhouse model with accurate longwave/shortwave radiations model

机译:具有精确长波/短波辐射模型的伪键图隧道温室模型

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This research work is focused on the construction of an accurate longwave/shortwave radiation model on a tunnel greenhouse pseudo-bond graph model, widely used in Tunisia. This model includes sun position, useful incoming solar radiation model, sky longwave radiation model, inside longwave and shortwave radiation model. The key idea is to use bond graphs allowing a lumped modelling approach which is suitable for control applications. Furthermore, an evaluation of some longwave radiative model components was made, noting that these components are particularly sensitive regarding to the thermal behaviour of the model. Experimental tunnel greenhouse data are used as validation elements for the present model with globally good results. A comparative study was also performed between the present model and a previous bond graph model containing a simplistic radiative model. Practical simulation results show a clear improvement compared with the previous model.
机译:这项研究工作集中于在突尼斯广泛使用的隧道温室伪键图模型上构建准确的长波/短波辐射模型。该模型包括太阳位置,有用的入射太阳辐射模型,天空长波辐射模型,内部长波和短波辐射模型。关键思想是使用键图来实现适合于控制应用的集总建模方法。此外,对一些长波辐射模型组件进行了评估,并指出这些组件对模型的热行为特别敏感。实验性隧道温室数据被用作本模型的验证元素,在全球范围内均取得了良好的效果。在当前模型和以前的包含简单辐射模型的键图模型之间也进行了比较研究。实际的仿真结果表明,与以前的模型相比,有明显的改进。

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