Paper Conference

Proceedings of Building Simulation 2021: 17th Conference of IBPSA


Building meta-optimization: A study on the reuse of previous simulation data to reduce computational costs

Lucas Camilotti, Nathan Mendes, Roberto Zanetti Freire
Pontifical Catholic University of ParanĂ¡, Brazil

Abstract: The use of simulations in building parameter optimization has become an established methodology in the past decades. Although different techniques employ varied numbers of total simulations, these are performed in isolation, with little to no interaction between them. In this context, we explored the possibility of re-utilizing previous data to speed-up future simulations. The Domus software was assumed as a simulation tool, and a case study considering the view factor data, which represents how the long-wave radiation heat transfer is calculated using a geometrical factor, was considered. This study presents a strategy to reuse the view factor calculation during building design considering the input vector changes of the optimization method. Results showed a considerable reduction of the optimization time. Finally, the methodology showed no drawbacks, with no improvements in the worst scenario.
Keywords: computational cost, data reuse, meta-optimization, view factor
Pages: 2829 - 2835