The BS EN ISO Standards 13791, 13792, 15255, and 15265 are used to validate a building simulation software’s results against expected results; compliance with these standards demonstrates the integrity of the simulation engine as the results are concerned with the solar, heat flow, and room load calculations which underpin the annual simulation.
Models were set up in Tas to the requirements specified in the standards. In each case Tas results fell within the standards’ specified margin of the expected results.
BS EN ISO 13791 tests heat conduction, long-wave radiation, surface sunlit factors, and operative temperatures resulting from different geometry, constructions, and ventilation methods.
BS EN ISO 13792 tests surface sunlit factors, and operative temperatures resulting from different geometry, constructions, and ventilation methods.
BS EN ISO 15255 tests operative temperatures and cooling loads resulting from different constructions, gains, ventilation methods, and cooling systems.
BS EN ISO 15265 tests heating and cooling loads resulting from different geometry, constructions, gains, and system schedules.
The Tas software’s compliance with these standards means users can have confidence in the accuracy of the TBD simulation engine.
To read the full compliance reports or download the Tas models, click here: https://www.edsl.net/validation/