Utilizing BIM technology to improve sustainability analyses for Iraqi Construction Projects

Abstract

The construction sector has a major contribution to resource depletion, high energy consumption and a high negative impact on the environment; hence, the need to improve sustainability in the construction sector has appeared. In this study, Building Information Modeling (BIM) technology is adopted as one of the modern techniques that contribute significantly in improve sustainability. This research aims to investigate around the impact of design parameter alternatives (orientation, window-to-wall ratio, window glass type) on electric energy performance and electric energy cost, study the role of BIM tools in water usage analysis and increase water efficiency and investigate the capabilities provided by BIM tools to improve natural ventilation. Educational project (Deanship building) of Agriculture College at Diyala University is considered as a case study. The result that illustrates the most effective alternatives is window-to-wall ratio with energy-saving around (21,439 kWh/year) and cost-saving around (1929$/year) as well as illustrates water usage indoor around (1,530,385 L/year) and outdoor around (1,063,385 L/year) and indoor water saving around (17.7%) based on fixture efficiency. Also, the results show BIM tools very useful in improving natural ventilation.