Transient Thermal Management of Vapor Cycles to Simulate Aircraft Electrical Environment Control Systems

摘要

A Modelica library has been developed to simulate thermal management architectures of ElectricalEnvironmental Control Systems (E-ECS) in new generation aircrafts. The modeling of thesearchitectures requires significant efforts to overcome the non-negligible number of numericaldifficulties related to the steady-state and dynamic resolution of both particular components andsubsystems. The library main goal is to conduct accurate and robust simulations with optimizedcomputational time based on an appropriate trade-off between component model simplicity andability to represent its behavior accurately.The work presented herein is focused on the resolution of the Vapor Compression System (VCS)and its integration within the aforementioned E-ECS architectures. The VCS has been modeledtogether with other relevant subsystems in order to assess the library numerical capacities and tostudy the influence of some relevant parameters such as the environment temperature or the VCScompressor working frequency.