Utilizing Electrical Water Pump in Internal Combustion Engines; a New Approach to Reduce Warm-up Period

One of the important aspect of internal combustion engines (ICEs) heat transfer is their warm up period. The importance of engine warm up period, especially in terms of emissions production, has always been of interest to researchers. In this study, the concept of using electric water pump in cooling circuit as a solution for reducing this period is investigated. In the present study, the thermodynamic performance of an ICE is first simulated in the GT-SUITE software and then coupled to the simulated cooling circuit of engine in the same software. After comparing the experimental and numerical results of the engine and validation, the effect of using an electric water pump on the thermal behavior of different engine components during engine warm-up period is observed. The results show that in the early stages of engine operation, it’s possible to manage the coolant flow rate in order to provide faster heating of the engine components which in turn leads to decreasing of the warm up period.