EnergyPlus在日光温室热环境模拟中的应用验证与分析

Verification and Analysis of the Solar Greenhouse Thermal Environment Simulation by EnergyPlus

为了寻求将现有商用能耗分析软件应用于日光温室热环境的设计、优化、建造和日常运营管理的方法,基于EnergyPlus软件,建立了日光温室模型,通过现场实验测试对所建立的模型进行了验证,并利用建立的模型对日光温室热环境进行了模拟分析。研究结果表明：提出的数值方法和建立的日光温室模型是正确可靠的,可以用于日光温室热环境的模拟分析;温室北墙夜间单位面积的供热量是东、西墙与地面总和的1.1~1.2倍,增强日光温室北墙体的蓄热和保温能力是提升日光温室调控自身热环境能力和水平最重要的途径。该研究结果可为日光温室的优化设计与热工性能分析提供参考。

To seek the application methods of the existing commercial energy consumption analysis software in design, optimization, construction and daily operation management of solar greenhouse, this paper established a greenhouse model based on Energy Plus software and verified the model through the field test. The thermal environment of greenhouse was simulated and analyzed by the model. The results show that the numerical method is proposed and the established greenhouse model are correct and reliable,which can be used for simulation and analysis of the thermal environment in solar greenhouse. The heating capacity per unit area of the greenhouse north wall at night is 1.1~1.2 times as much as the sum of heating capacity per unit area of the east wall, west wall and land. So enhancing the heat storage and heat preservation ability of the north wall in solar greenhouse is the most important way to improve the thermal environment of greenhouse. The results can provide reference for the optimization design and thermal performance analysis of solar greenhouse.