Impact of Geometric Indicators on Residential Thermal Behavior in Hot Arid Climate (Case Study: Yazd)

The existence of a crisis such as a climate change and greenhouse gas emissions, due to the excessive consumption of energy and the share of buildings in it, is one of the global problems
that is undeniable. On the other hand, the influence of geometric indicators on thermal behavior has been experienced over decades in the nature of animals and plants. Historically, Architects
have always tried to create appropriate solutions with the intention of providing a comfort zone for human in line with the climate. Choosing the form and scales are from the solutions
adopted.
This study tries to study the contribution of each of the effective geometric indicators by using a software simulation method as well as being a step to provide the principles for choosing
the volumes by architects and designers. With this purpose and with studying the previous researches, the most important indicators and used methods were identified and selected. 10
volumes including 5 simple volumes and 5 volumes of the compound that are more abundant among other residential forms, especially in hot and arid climate, were selected in four floors
with residential use. The contribution of each geometric indicator has been investigated by simulating the thermal behavior of each volume in Autodesk Ecotect Analysis software and
Design-Builder software.
The simulation results indicate that after the form of the building, the relative compaction indicator, and then the proportion of the surface of the south facade are more important. In
addition to geographic indicators, east-west orientation provides the optimal response to the total annual energy consumption of the building.