文献类型： 外文期刊
作者： Luo, Qianliang 1 ; Guo, Yubo 1 ; Dai, Anguo 3 ; Li, Yanfeng 3 ; Cheng, Jieyu 1 ; Wang, Pingzhi 1 ; Zhao, Shumei 1 ;
作者机构： 1.China Agr Univ, Coll Water Resources & Civil Engn, Beijing 100083, Peoples R China
2.Minist Agr & Rural Affairs, Key Lab Agr Engn Struct & Environm, Beijing 100083, Peoples R China
3.Tibet Acad Agr & Anim Husb Sci, Inst Vegetables, Lhasa 850000, Peoples R China
关键词： Chinese solar greenhouse; Soil; Model; Iterative boundary condition method; Heat-transfer characteristics
期刊名称：ENERGY （ 影响因子：9.4； 五年影响因子：8.8 ）
ISSN： 0360-5442
年卷期： 2025 年 322 卷
页码：
收录情况： SCI
摘要： The insulation and heat storage capacity of solar greenhouse soil are crucial to the formation of indoor thermal environment. Aiming at the problems of the current greenhouse soil heat transfer model in modelling, initial condition processing and model resolution, the model is optimised and upgraded, and based on the finite difference method, a two-dimensional numerical soil heat transfer model for solar greenhouses under approximate real working conditions was established. By testing the measured data, the average relative error between the simulated and measured values was calculated to be 5.38 % and the root mean square error was 1.03 degrees C, indicating that the accuracy of the model is high. Simulation analysis of the solar greenhouse revealed that during the daytime, the heat transfer in the surface layer of the greenhouse soil is mainly based on soil evaporation and solar radiation, whereas during the night-time, it is mainly based on thermal radiation. By applying the model to the greenhouse soil surface layer for heat balance state analysis and the influence of the two measures of greenhouse ground subsidence and soil heat insulation at the low-temperature boundary of the greenhouse on the heat transfer from the soil was analysed.
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