In the last decades, the themes related to comfort simulation have gained a central role in the building process, requiring increasingly thorough analyses. In this field, multidisciplinary simulation-based optimization can be used to help professionals in investigating design alternatives and reaching the best solutions supported by scientific rigor. In addition, due to the complexity of the variables involved, the integration between comfort analysis and BIM-based software is crucial. The research hereby presented starts from a literature review and examines the development of BIM-based optimization with the exploitation of Visual Programming Languages (VPL) in order to achieve an optimization method based on simulation. After the definition the knowledge basis, a workflow that uses the BIM software Archicad in connection with the VPL editor Grasshopper, the environmental plugins Ladybug and Honeybee as simulation tools, and Galapagos and Octopus for the optimization stage is proposed. The framework has been tested on a case study in which thermo-hygrometric and visual comfort have been optimized depending on the size of the glazed surfaces. The study highlights the opportunity arising from the application of BIM-Based multi-objective optimization processes and discusses their limitations at the state of the art.

BIM-Based multi-objective optimization process for energy and comfort simulation: Existing tools analysis and workflow proposal on a case study

Cecchini C
;
2018

Abstract

In the last decades, the themes related to comfort simulation have gained a central role in the building process, requiring increasingly thorough analyses. In this field, multidisciplinary simulation-based optimization can be used to help professionals in investigating design alternatives and reaching the best solutions supported by scientific rigor. In addition, due to the complexity of the variables involved, the integration between comfort analysis and BIM-based software is crucial. The research hereby presented starts from a literature review and examines the development of BIM-based optimization with the exploitation of Visual Programming Languages (VPL) in order to achieve an optimization method based on simulation. After the definition the knowledge basis, a workflow that uses the BIM software Archicad in connection with the VPL editor Grasshopper, the environmental plugins Ladybug and Honeybee as simulation tools, and Galapagos and Octopus for the optimization stage is proposed. The framework has been tested on a case study in which thermo-hygrometric and visual comfort have been optimized depending on the size of the glazed surfaces. The study highlights the opportunity arising from the application of BIM-Based multi-objective optimization processes and discusses their limitations at the state of the art.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11571/1449723
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