An integrated EnergyPlus simulation framework for Building Information modelling based building envelope generative design

Generative design systems provide innovative solutions for improving energy efficiency in buildings by enabling advanced automation and optimization tools. However, limitations in BIM-BEM simulation tools restrict the advancement of BIM-based generative design. This study proposes a simulation framework that automates EnergyPlus simulations using Dynamo and Python scripts to optimize building envelope performance.

An office building was used as a case study, with simulations conducted using 10 generations, 20 population size, and 1 seed value. The process, completed in 150 minutes, generated 344 alternatives, 61 of which were valid. Considering thermal comfort, 5 optimal alternatives were identified.