Indoor Climate and Airflow Simulations

Priedemann uses computer-based simulation where standardised calculation methods are no longer sufficient. This covers room-comfort simulation based on ISO 7730 together with heating and cooling loads, and, for complex systems, three-dimensional computational fluid dynamics (CFD) simulation, including sizing smoke-extraction openings. The aim is a reliable basis for concrete design decisions on critical rooms and systems.

Priedemann uses thermal and airflow simulations to investigate the behaviour of the facade, interior and building services under defined conditions. Input data for the building, use, climate and technical systems are translated into coordinated models. Depending on the brief, the analysis considers room temperatures, comfort, heating and cooling loads, airflow or temperature distribution.

Critical areas and the implications of possible options become visible. The findings support design decisions but do not replace measurement of the completed building in operation.

What simulation outputs can show

Simulation can provide more than a single performance value. Depending on the model, the analysis can consider room-air temperatures, thermal comfort, heating and cooling loads, airflow velocities and temperature distributions in the air or at surfaces. CFD simulation can also be used for defined smoke-extraction scenarios and to examine smoke-extraction or make-up-air openings. The important limitation is that every result applies to the assumptions and boundary conditions defined for that particular model.