View article

This paper discusses a Modelica library of switching moving boundary models for two-phase flow heat exchangers: evaporators and condensers. The equationbased object-oriented modeling paradigm has been considered by means of designing basic models applying the conservation laws for each flow state: subcooled liquid, two-phase flow and superheated vapor. Evaporator and condenser models have been developed by interconnecting the basic models and including mechanisms to switch between different configurations: general, flooded and dry evaporators and condensers. Finally, simulation results are presented by an integrity and stability test case.