首页|Precise quantification of microclimate heterogeneity and canopy group effects in actively heated solar greenhouses

Precise quantification of microclimate heterogeneity and canopy group effects in actively heated solar greenhouses

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  • NETL
  • NSTL
  • Tsinghua Univ Press
Winter is a critical period for greenhouse crops production. Multi-source sensors were utilized to quantitatively describe the microclimate distribution patterns and the interactions between crops and greenhouse environment during the winter season. By integrating 3D simulation model, we calculated the energy balance of solar greenhouses, thus assessing the suitability and economic efficiency of several common greenhouse heating devices. The results revealed significant discrepancy in energy demand across different planting areas within the greenhouse, especially in the north-south direction. Significant interactions between crops and greenhouse environment were observed. The presence of cucumber canopies significantly increased relative humidity by 3.0% to 3.8% and negatively impacted air temperature by 1.1 ℃ to 2.5 ℃. Considering the energy balance, initial investment in heating devices, usage period, and utilization effectiveness, the light tube radiators were identified as a suitable heating option. Compared to the unheated greenhouse, the heated greenhouse raised minimum temperatures by 5.2 ℃ to 10.2 ℃, reduced maximum relative humidity by 4.2% to 14.6%, and had a return-on-investment period of approximately 4.7 years. These findings offer valuable insights for multi-source sensor deployment, distributed control, structure optimization, and heating design in solar greenhouse.

solar greenhousemicroclimateinteractionheat loadactive heatingeconomic benefit

Demin Xu、Ruixue Liu、Yaling Liu、Qiaoxue Dong、Jinyu Zhu、Yuntao Ma

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College of Land Science and Technology, China Agricultural University, Beijing 100091, China

College of Land Science and Technology, China Agricultural University, Beijing 100091, China||State Key Laboratory of Vegetable Bio-Breeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China

Inner Mongolia Pratacultural Technology Innovation Center Co. Ltd, Inner Mongolia Autonomous Region, China

College of Information and Electrical Engineering, China Agricultural University, Beijing 100091, China

State Key Laboratory of Vegetable Bio-Breeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China

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2025

10.1007/s12273-025-1247-5

Building Simulation

Building Simulation

ISSN：1996-3599
年,卷(期)：2025.18(5)
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