Eventos Anais de eventos
DINAME 2023
XIX International Symposium on Dynamic Problems of Mechanics
Digital twin for the transient operation of a real heat pump
Submission Author:
Mariusz Zamojski , Tirol , Austria
Co-Authors:
Mariusz Zamojski, Fadi Dohnal
Presenter: Mariusz Zamojski
doi://10.26678/ABCM.DINAME2023.DIN2023-0095
Abstract
Efficiency and flexibility are key aspects of modern heat pumps for the household. A nonlinear model of the refrigeration cycle is developed in the framework of Matlab/Simulink that allows for simulation and control design of multiphase fluid dynamics of an existing heat pump. A finite difference model of the evaporator and the condenser is coupled with phenomenological models of the separator, collector, 4-port valve and pipes. The standard components expansion valves and compressor are characterized by operation maps obtained from the supplier. The detailed thermodynamic model is benchmarked against real measurements at stationary operation. This capability is then expanded to simulate the dynamic behaviour during the transition between different operation points. Finally, a delayed modelpredictive control is employed for a time-efficient change in real-time operation.
Keywords
Refrigeration Cycle, numerical thermodynamics, heat pump
