Year: 2024
Type: article
Abstract: The paper investigates the dynamics of air flows in the cabin of a low-entry city bus to improve passenger comfort and energy efficiency. The modeling was performed by CFD analysis in Ansys Fluent using the Mercedes-Benz Citaro Hybrid cabin model. Under winter conditions (flow inlet temperature - 27°C, bus body walls - 0°C), the maximum flow velocity reached 3.69 m/s in the doorway area, while insufficient ventilation was found in the front and rear parts of the cabin (velocity <0.8 m/s). It is recommended to introduce multi-flow ventilation with optimization of air supply angles by diffusers, as well as additional flows in the floor area to heat passengers' feet in winter (temperature < 290 K). The results obtained allow us to formulate effective solutions to improve the cabin microclimate and reduce discomfort zones.
Authors: Konstantyn Golenko, Orest Vozniak, Ihor Vikovych, Oleh Kotsiumbas, Yevheniia Yakovenko, Ilona Drach
Language: English
Topic: Wind and Air Flow Studies
Subfield: Environmental Engineering
Field: Environmental Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4408921086