Thermal resilience & energy saving potential in central courtyards of hot-arid climate by use of BIM

Climate change will bring changes to our living conditions, particularly in urban areas.Buildings should be comfortable and healthy. They are a shelter for their occupants andshould not be a source of problems [۱]. Ensuring a good environment through appropriatearchitectural measures is one of the stakes of sustainable architecture. For that purpose andfor several reasons, constructive measures are preferred to technical ones. Emphasisshould be given on the influence that design options have on indoor and outdoorenvironment quality, addressing their positive or negative effects on thermal comfort, airquality, lighting, noise protection and acoustic comfort [۲]. The heating, ventilation and airconditioning systems are responsible for a significant proportion of the energyconsumption of the built environment, on which the occupant's pursuit of thermal comforthas a substantial impact [۳]. The Process of Climate Change in the long run can reduce thepresence of people in open spaces, especially in hot& arid climates. Historic buildingsoften provide a courtyard or porch, which plays a strategic role to control the outdoormicroclimate[۴]. Climate-responsive design strategies through courtyards can help tomoderate temperatures and reduce the thermal stress of its occupants. Thermal responseinside courtyard is affected not only by its morphological composition but also bysubjective factors[۲]. This research seeks to assess the level of adaptation of the centralcourtyard of cultural houses to the climatic conditions in the city. It tries to accuratelystudy the thermal comfort in the central courtyard by measuring the effect of componentssuch as: Dimension, Proportion, pond, Trees, and green spaces. In order to determine thepriority of influencing the above components, some traditional houses have been selectedand using ENVI-met۴, the level of thermal comfort has been measured based on the PMVindex. Regarding this concern, with the help of software it can be visualized theconditions. However, integration of existing technologies and real-time information couldenhance the potential of the solution proposals. Therefore, the purpose of this research isto explore new possibilities of how to upgrade building information modelling (BIM)technology to be interactive, by using existing BIM data during the occupation phase.Moreover, the research discusses the potential of enhancing energy efficiency and comfortmaximization together (in central courtyards of historical houses in Iran in hot-aridclimate) by using the existing BIM database and real-time information concomitantly.

کلیدواژه ها:

Climate change ، Sustainable architecture ، Energy efficiency ، Thermal comfort ، Centralcourtyard ، Building information modeling (BIM)