Induction Ventilation Airflow Simulation Study Of Train's Soft Sleeper Box

In the air-conditioned passenger railway, ventilation occupies an important position. Inside the air quality is good or bad, to a large extent depends on the ventilation airflow conditions. Traditional ventilation in the air-conditioned passenger railway has exposed a number of issues, uneven airflow inside, there blast dead ends, the age of air is too long. And air induction air-conditioning system has the following advantages: save space; improve the air quality inside and the human body comfort; high system stability and high reliability; in the same size installed equipment installation location is low; scope of the system is wide, and can be separate regulate.Therefore, this paper introduces induced ventilation, and study the air-conditioned passenger railway of 25T soft sleep box, adopt numerical calculation method, using Icepak software to simulate the airflow in the box conducted a simulation analysis and study. The goal is through the soft sleeper box airflow simulation, understands the different forms and blast-induced ventilation parameters of the flow field under the box with changes in air-conditioned soft sleeper box and could offer a good airflow design reference.The topic used Icepak software to study indoor flow field simulation based theoretical analysis, compared numerical results to experimental results, and find simulation results reasonable, So Icepak software will be used in air-conditioning train airflow evaluation.This thesis is aimed at offering the reference for soft sleeper box air-conditioning designer and design manager, as soon as possible to improve the ventilation system setup, to reach a satisfactory outcome in the air quality.