A BIM based assessment of the impact of envelope design and building surrounding on the tradeoff between energy efficiency, thermal comfort and visual comfort

Uysal, Mehmet Turabi
The problem of depletion and rapid consumption of natural resources has forced engineers to design houses that consume less energy with more sustainable materials. However, simply minimizing energy consumption is not enough; at the same time, it is necessary to keep the indoor quality at the maximum level for a healthier environment and higher level of production. BIM based design and analysis has the potential to help achieve both targeted energy needs and visual & thermal comfort levels. Previous studies looked into increasing visual comfort while considering the energy performance of the buildings or performed simulations to keep daylight performance and energy efficiency at an optimum level. Moreover, there was also some research on optimization in the field of costs, such as life cycle cost and life cycle energy relationship or the monetary analysis of visual and thermal comfort. However, an optimization study aiming to keep the energy need low while increasing the thermal comfort and visual comfort, in other words, a study that evaluates all three criteria at the same time, has not been encountered. In this study, an analysis to support a greener and more environmentally friendly design, which reduces the building energy consumption while increasing thermal and visual comfort at the same time, has been performed by using BIM technology together with a multi-objective function to assess tradeoff between these criteria. The results of the analysis show how certain design parameters effect energy efficiency and thermal and visual comfort levels and provides a potential to support design decisions not only considering energy efficiency but also the comfort of the occupants.


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Citation Formats
M. T. Uysal, “A BIM based assessment of the impact of envelope design and building surrounding on the tradeoff between energy efficiency, thermal comfort and visual comfort,” M.S. - Master of Science, Middle East Technical University, 2021.