Investigation of the Relationship Between the Climatic Role of Iwan and Rate of Energy Consumption in Traditional Houses of Tabriz

This research studies the reaction of traditional houses to solar energy according to the function of Iwan as well as the climate in Tabriz city. It aims to investigate the climatic role of Iwan in the rate of energy consumption of these houses. Statistical population of this study contains four traditional buildings registered in Cultural Heritage Organization of the East Azarbayjan province. Solar conveyor system, content analysis, and survey methods with tools including the images, tables and maps have been used for investigating the cases in order to achieve this objective. Obtained results indicates that Iwan was applied only as the symbolic element in the architecture of traditional structures in Tabriz city and its climatic function was rarely considered in designing these structures.