Optimization Scheme of Internal Circulating Heat Dissipation System for Tram Ground Charging Device
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 2
Abstract
[Objective] To solve the problems of unstable shell protection performance, complex HD (heat dissipation) system configuration, and low HD efficiency existing in current tram ground charging devices, a scheme of ICHD (internal circulating head dissipation) system for tram ground charging device is designed. [Method] The composition and HD principle of the ground charging device are introduced, and the reasons for the low HD efficiency are analyzed. In view of the overall ICHD system of the enclosed cabinet, an ICHD system optimization scheme is proposed. The FLOTHERM simulation software is utilized to compare the airflow velocity and temperature rise between the original and optimized schemes, and experimental verification is conducted. [Result & Conclusion] It is found that the overall ICHD system based on air-conditioning cooling is unable to solve the HD issues of high-power and high-heat loss centralized heating devices. This inefficiency is not related to the cooling capacity of the refrigeration system but rather to the airflow circuit of the HD system. The proposed optimization scheme forms a closed-loop airflow circuit between the air-conditioning airflow outlet, inductor and air-conditioning return air vent, significantly reducing the temperature rise of high-power centralized heating devices. This effectively enhances the HD performance of the HD system, resulting in a temperature rise reduction of approximately 20.1% in the inductor of the charging device after optimization. The proposed optimization scheme satisfies the temperature rise requirements of the ICHD system.
Authors and Affiliations
Xiuqiang CHEN
Keywords
Related Articles
- EP ID EP730102
- DOI 10.16037/j.1007-869x.2024.02.037
- Views 31
- Downloads 0
Analysis and Solution Schemes for Interference on Metro Signaling System Axle Counting Equipment
[Objective] During the system commissioning, train debugging and trial operation on Chengdu Metro Line 18, the axle counting equipment exhibits AIO (abnormal interference and occupation) due to various disturbances in di...
Optimization of Mecca Light Rail Train Organization during Peak Hours Based on Virtual Formation Technology
Objective With the annual increase of pilgrim flow in Mecca, the throughput capacity of Makkah Metro Pink Line (simplified as Mecca light rail) operation plan during peak hours is saturated. Therefore, it is aimed to exp...
Design of Fully Automated Depot Train Inspection Operation Management System Architecture Based on Digital Twin
[Objective] Digital twin technology is the booster for many industries to embark on the path of intelligence, information, and digitalization. To promote the digital development of urban rail transit vehicle bases, a ful...
Research on AH-model Vehicle Clearance Based on Dynamics Simulation Calculation
Objective The AH-model vehicle combines the characteristics of A and B type model vehicles. Due to its structural differences from conventional metro vehicles, there are currently no corresponding standards on vehicle cl...
Monitoring and Analysis of the Adjacent Metro Shield Tunnel Deformation Caused by Simultaneous Excavation of Parallel Double Foundation Pits
[Objective] Simultaneous excavation of double foundation pits will affect the adjacent metro shield tunnel. In order to ensure the stability of the adjacent shield tunnel, it is necessary to monitor and analyze the defor...