Simulation of the cooling circuit with an electrically operated water pump

In this paper a cooling circuit with an electrically operated water pump was examined and simulated. The presented simulation results were performed with Dymola. This simulation tool is based on the modelling language Modelica. The model of the water pump was realized with time domain differential equations. The parameters of the differential equations are defined by the geometrical data of the water pump. The water pump was driven by a controlled electric motor. A battery was used as power source for the electric motor. In the proposed application the thermal behaviour of all components in the cooling circuit (engine, pipes and cooler) is modelled. For the internal combustion engine and the cooler the temperature distribution is presented. The simulated and the theoretical characteristics of the water pump will be compared.