Thermal management system of FUM Racing Formula SAE electric vehicle

Formula SAE is a prestigious student design competition hosted by SAE International. In ۲۰۲۴, the event will take place at the Silverstone Circuit in the UK. FUM Racing team is thrilled to participate in the electric vehicle (EV) class for the first time. To power the proportional system, the vehicle will rely on a battery pack, like most electric cars. This study focuses on designing a thermal management system for the battery pack using numerical models. The team developed a setup using the SST-k model and validated it with analytical results. After careful consideration, they chose a Z-shaped air-based forced convection system for its superior temperature control. To achieve the best design, a three-step process was implemented, all centered around a ۱p۱۰s cylindrical battery pack. The initial design displayed insufficient forced convection in the first air entry, leading to a steady increase in the initial battery's temperature. The second design solved this issue by replacing the sharp edge of the first entry with a curvature and lifting the outlet channel to decrease head loss and increase flow rate in the entry. However, the problem persisted. Further analysis revealed that the primary cause was the separation in the entrance channel. After rectifying this, the final design performed exceptionally well. With a velocity inlet of ۵m/s, the maximum temperature reached ۴۶.۱°C, and the highest temperature difference was ۶.۱°C. This cooling system is expected to enable the car to perform optimally during the competition.

کلیدواژه ها:

Thermal Management ، FSAE ، Heat Transfer ، Formula Student ، Electric Vehicle