Abstract
In this paper, the overall performance of an electric machine cooling system was examined in terms of heat transfer and fluid flow. The structure of the cooling system was based on the cooling jacket method. The cooling jacket contains spiral channels surrounding the stator and end-windings of the electric machine. Al2O3-water nanofluid is used inside the channels as the cooling fluid. The concentration of nanoparticles and the geometric structure of the cooling system have special effects on both aspects of heat transfer and fluid flow. Therefore, in this paper, the overall performance of the cooling system was evaluated by considering these effects. This study compared the importance of heat transfer and fluid flow performances on the overall performance of the cooling system. Numerical analyses were performed by 3D computational fluid dynamics and 3D fluid motion analysis. The analyses were carried out based on the 3D finite element method using the pressure-based solver of the Ansys Fluent software in steady mode.
Highlights
Employing Nanofluid as an Manufacturing cost is one of the barriers to the widespread use of electric vehicles (EVs)
This becomes more important when considering the power/torque demand profile of an electric motor used in electric vehicles, which is due to the highly dynamic nature of the power/torque demands, which is, in turn, a function of the driver’s behavior and the number of frequent stops and starts, so peak torque can be several times the rated torque of the electric motor
The most important factor involved in the ability of the electric motor to produce a peak torque several times greater than its nominal torque is the ability of the electric motor cooling system [2,3]
Summary
Employing Nanofluid as an Manufacturing cost is one of the barriers to the widespread use of electric vehicles (EVs). Maximum utilization of the electric motor torque production capability is desired for EV applications [1] This becomes more important when considering the power/torque demand profile of an electric motor used in electric vehicles, which is due to the highly dynamic nature of the power/torque demands, which is, in turn, a function of the driver’s behavior and the number of frequent stops and starts, so peak torque can be several times the rated torque of the electric motor. One of the factors that is effective in sizing the electric motor is the ratio of peak power to rated power. The most important factor involved in the ability of the electric motor to produce a peak torque several times greater than its nominal torque is the ability of the electric motor cooling system [2,3]. For a given peak power and rated power, the electric motor size can be reduced if the electric motor cooling system possesses a high performance
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
