Enhancement of the building simulation software TRNSYS by coupling to the VEPZO model programmed in Modelica
Svea Kübler, Victor Norrefeldt · Linköping electronic conference proceedings · 2014
In this study, the possibility to interface a commercial building simulation tool with Modelica models is investigated.In this application, the zonal model VEPZO -modeled in Modelica -is coupled to the software TRNSYS -mainly programmed in Fortran -to be able to perform a dynamic co-simulation.The objective of this coupling is to obtain refined airflow and air temperature prediction, while retaining computation effort low enough to allow for transient computation.In a first attempt, a coupling using FMI was tested without success due to a lack of adequate solvers for FMI export.Therefore, a script coupling was implemented.Further steps include a validation and evaluation of the programmed interface and the results of the coupled system in respect to computation time, quality of results, usability and further development.