Cite Descartes- Campus Extension
T he project case study focuses on a new development of a cluster of buildings located in the area of the Cité Descartes located approximately 20 km east from the center of Paris. Several new buildings are planned as an extension of the existing campus of the university Paris-Est Marne-la-Vallée. The service of EMVI_MET was to provide insight into the changes of thermal comfort that arise in the area through the construction of the buildings and suggest improvements. In addition, site-specific weather data for a subsequent building energy simulation have been generated from the microclimate simulation. The initial planning resulted in an increase of air temperature up to 3 K in large parts of the campus due to changes in ventilation and decrease of green infrastructure. Several passive NBS (nature-based solutions) have been proposed by ENVI_MET to mitigate these negative effects: additional tree planting, usage of larger tress, replacement of sealed surfaces with natural soil and the application of water along the main street. In addition, it was suggested to elevate two parts of the new buildings to allow an air interchange with the nearby Parc de la Butte Verte. Through the application of the NBS, the air temperature could be decreased by around -1.5 K which is about 50% of the negative impact created by the purposed planning. In addition to the outdoor thermal comfort analyses, site-specific weather data have been generated for the new buildings. Site-Specific weather data allow a much better and detailed calculation of the buildings energy demands and costs as they include the interactions of the building with the environment and other buildings in the neighborhood.