Future proofing the accuracy of building simulations by addressing climate change projections in modified weather files

  • YEAR
    2016
  • AUTHORS
    Petruzzi, Roberto
    Jensen, Christopher
  • CATEGORIES
    2016 Conference Papers
    Architectural Science and Design Assessments
    Conference Papers

Extract

Complex building simulation is increasingly common in the design process of buildings in Australia. Traditionally, building simulation has been conducted using weather files constructed from typical historical weather data, but in a period of climate change the use of historical data to assess performance has been criticised as inappropriate. Modern buildings need to be efficient and comfortable today, but also into the future. This new design challenge requires adaptability and resilience to be included in building designs from the outset, and necessitates that data used for simulation is as accurate and reflective as possible of the environmental conditions in which buildings are likely to operate. This research utilises the improved imposed offset method proposed by Guan to construct a future hourly weather data file for various Australian locations that can be used in building simulation software. This approach will produce weather time series that incorporates the RCP8.5 climate change scenario while maintaining the local and realistic characteristics of the original weather file. This future weather data can then be used by designers and building engineers to assess off-axis scenarios in the simulation and address the risks of overheating during the lifetime of the building.

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