The effect of high commercial buildings on microclimate for hot climate cities

Abstract

Last decades cities were rapidly growing and continuously changes, the growth of population was increased and life conditions changes. Urban formation for cities changes accordingly, which includes land uses, the geometry of buildings, the heights and density for the built area changes. There is a research gap in studying the effect of high commercial buildings on microclimate for hot climate cities, which represented the research problem. To solve this problem research studied the effect of high commercial buildings on microclimate for Baghdad city, as an example for hot climate city comparing to original residential buildings land use, by using ENVIMET 4.4.2 software and analyze results. The result showed that high commercial buildings contributed in rising average air temperature as compared to residential buildings especially at night time. Also it decreased relative humidity during the day and night periods. While the wind speed increased its rates and the average mean radiant temperatures at night decreased.