To improve the prediction of the building’s energy performance, it has become necessary to evaluate their interactions with the urban microclimate. This study aims to propose an integrated model in the TRNSYS software with a simplified approach to assess building energy demand, including microclimate interactions on buildings. This model is based on thermoradiative and aeraulic modelling by considering the moisture transfer through the envelope. To evaluate the validity of this method, an urban canyon was modelled and compared with existing experimental results. The numerical results are close to the experimental observations with a mean absolute error of about 1°C for the outside surface temperature and a mean relative error of approximately 5%. The developed model has shown its potential in reducing an unexpected impact of interoperability when using several tools and to ensure shorter computation time compared to CFD calculations, with an accuracy satisfying the thermal and energy evaluation objectives.

为了改善对建筑物能源性能的预测，有必要评估建筑物与城市小气候的相互作用。这项研究旨在在TRNSYS软件中提出一种集成模型，并采用一种简化的方法来评估建筑物的能源需求，包括建筑物上的小气候相互作用。该模型基于热辐射和航空模型，其中考虑了水分通过包膜的传递。为了评估该方法的有效性，对城市峡谷进行了建模，并与现有的实验结果进行了比较。数值结果接近于实验观察结果，外表面温度的平均绝对误差约为1°C，平均相对误差约为5％。