PRT 차량의 열/유동 해석 및 성능 평가

The Personal Rapid Transit(PRT) system has recently attracted much attention in future transportation developments due to its possibilities as green and sustainable transport solutions for demandresponsive mobility services. Korean PRT system is an electric vehicle powered by inductive power transfer. Most importantly, the thermal management strategies to maintain an operating temperature as well as to provide optimized thermal comfort to passengers are very challenging, and these issues are related to reliability and system performance. In this study, computational fluid dynamics(CFD) simulations were carried out to assess the thermal performance of the vehicle. As a result, the high thermal loads from pick-up coil and condenser were observed during charging mode, but it was demonstrated that heat accumulation was attenuated by utilizing the flow separator and additional air intake hole. In addition, the predictions of thermal comfort under hot summer and cold winter conditions were performed by evaluation based on the predicted mean vote(PMV) and predicted percentage of dissatisfied(PPD) indices.