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Numerical Prediction Of Automotive Underhood Airflows Using An Uncalibrated Fan Body Force Model, Palak Saini
Numerical Prediction Of Automotive Underhood Airflows Using An Uncalibrated Fan Body Force Model, Palak Saini
Electronic Theses and Dissertations
Underhood vehicle airflow simulations are an important part of the overall vehicle thermal management process, especially in the preliminary stages of the vehicle development program when performing experimental work on cooling system prototypes can prove to be expensive, time-consuming, or simply impossible due to the absence of any physical vehicle prototypes. Accurate prediction of the automotive fan performance, which forms a critical component of the cooling module, is a prerequisite for the optimum sizing and design of heat exchangers, and the rest of the under-hood installations. The coupled and complex nature of the under-hood flow environment necessitates consideration of the …
Thermal Modeling Of Permanent Magnet Synchronous Motors For Electric Vehicle Application, Pratik Roy
Thermal Modeling Of Permanent Magnet Synchronous Motors For Electric Vehicle Application, Pratik Roy
Electronic Theses and Dissertations
Permanent magnet synchronous motor (PMSM) is a better choice as a traction motor since it has high power density and high torque capability within compact structure. However, accommodating such high power within compact space is a great challenge, as it is responsible for significant rise of heat in PMSM. As a result, there is considerable increase in operating temperature which in turn negatively affects the electromagnetic performance of the motor. Further, if the temperature rise exceeds the permissible limit, it can cause demagnetization of magnets, damage of insulation, bearing faults, etc. which in turn affect the overall lifecycle of the …