A computational method to assess the impact of urban climate on buildings using modeled climatic data

In the last decade a lot of research effort has been spent on identifying the effect of the urban climate on the energy performance of buildings and HVAC (heating ventilation and air conditioning) systems. In this paper a methodology is proposed to assess that effect by the exclusive use of modeled data. Particularly, by using a downscaling modeling procedure a process for the generation of weather files for energy calculations is achieved. From a non-hydrostatic weather model the urban climate of the city of Lisbon is simulated and via a weather generator climatic data files for the buildings’ simulation software are derived. The results on the energy behavior of a reference test cell for different sites inside the city of Lisbon are presented.