Research and optimization of airflow organization in passenger room of subway train

Fengmin Xiao; Ke Yi; Yuxin Zhang; Jianbin Zang; Chun Song

doi:10.1117/12.3038250

5 August 2024 Research and optimization of airflow organization in passenger room of subway train

Fengmin Xiao, Ke Yi, Yuxin Zhang, Jianbin Zang, Chun Song

Proceedings Volume 13226, Third International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2024); 132261T (2024) https://doi.org/10.1117/12.3038250
Event: 3rd International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2024), 2024, Changsha, China

Abstract

This article takes the air flow organization in the passenger compartment of a 120 km/h Type A subway train as the research object. Based on the two-dimensional and three-dimensional model diagrams of the train, a geometric model is established and mesh division is completed. Boundary conditions are set according to the calculation details of the heating and cooling load of the train air conditioning and the uniformity results of the air supply simulation in the air duct. Using computational fluid dynamics methods and simulation software such as HyperMesh and STAR-CCM+, the full load and empty load, summer and winter Simulation calculation of 8 operating conditions including single return air and double return air. The results show that the main flow velocity of all working conditions is below 0.6m/s, which does not cause a significant blowing sensation to passengers, but there is a problem of airflow short circuit; The uniformity of air flow organization and temperature distribution in the passenger compartment is good when unloaded; When fully loaded, the uniformity of air flow organization and temperature distribution in the passenger compartment decreases, and the temperature significantly increases; The dual return air mode with increased seat bottom return air can significantly improve the temperature distribution in the passenger compartment and enhance comfort.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Fengmin Xiao, Ke Yi, Yuxin Zhang, Jianbin Zang, and Chun Song "Research and optimization of airflow organization in passenger room of subway train", Proc. SPIE 13226, Third International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2024), 132261T (5 August 2024); https://doi.org/10.1117/12.3038250

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KEYWORDS

Education and training

Temperature distribution

Air temperature

Clouds

Wind speed

Numerical simulations

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