پگاه ديواندري

Despite the fact that the basic formal characteristics of buildings in the early stages of design can play a main role in their optimal performance in energy consumption, but detailed researches about this issue in residential buildings in Iran does not exist especially in Tehran. Therefore, this research focuses on the initial steps of design, in which the most important parameters are the general characteristics of the form, including proportions, orientation, and height. Therefore, this research seeks to find the optimal ratio of the length to the width of the building, the optimal distribution of the volume of the building in the height, and finally to find the best orientation in order to increase the period of time that the building is in thermal comfort and, as a result, reduce energy consumption. The method of this research is based on computer simulation, first a parametric model that can produce all possible situations was created by using Grasshopper and Rhino software, then an eva‎luation model was created by using some plugins, such as Ladybug, honeybee, and dragonfly, then simulation was done by using the Brute force method for all form states, finally the data was outputted as an Excel file by using the Calibri plugin. In the next step, the research findings were discussed and analyzed by using different graphs. The results indicate that the length of transition period increased, when the number of floors in a building block and east-west elongation increased. Also, the change in the direction of the building did not make much difference in the results, only it can be said that the positive orientation of the building has a small positive effect on the results.

مرحله اوليه طراحي , نسبت بهينه طول به عرض , جهت گيري , توزيع بهينه حجم ساختمان در ارتفاع , طول دوره گذار

Early stages of design , optimal ratio of length to width , orientation , optimal distribution of building volume in height , length of transition period

pegah divandari

dr mohammad ali khanmohammadi, dr abbas tarkashvand