Simulation analysis and optimization of thermal management for a certain type of locomotive battery charger

2021 ◽  
Author(s):  
Hongyong Ge ◽  
Xiangli Lin ◽  
Lijun Zhang ◽  
Jun Zhang
2020 ◽  
Vol 1507 ◽  
pp. 072012
Author(s):  
Fuqiang Ma ◽  
Xiangrong Liu ◽  
Shuangpeng Hao ◽  
Zhenxiao Li ◽  
Baoming Li

2014 ◽  
Vol 563 ◽  
pp. 362-365
Author(s):  
Chao Jiang ◽  
Zhi Guo Tang ◽  
Jia Xin Hao ◽  
Hui Qing Li

Effective thermal management of battery pack is essential for electric vehicle to adapt to different kinds of external environment, achieve desired working efficiency and life cycle of the power batteries. In this paper, a novel thermal management system is designed for battery pack in electric vehicle. Visualized simulation analysis of the thermal management system is carried on under different working conditions by CFD, then the structure parameters will be optimized. According to the conclusion, the thermal management system has been indicated to be effective to ensure an appropriate temperature range and the normal work of the power batteries in electric vehicle.


Author(s):  
Vipan Kumar ◽  
Harry Garg ◽  
Chetandeep Singh ◽  
Sucheta Kandoria ◽  
Vinod Karar

Thermal management of electronic systems is the utmost concern to achieve optimum efficiency under space and weight constraints. For the optimal functioning of a system, the heat generated by the electronic components needs to be dissipated efficiently. The passive cooling technique is extensively used in electronic systems, wherein the more contact surface area of a heat source and the surroundings are utilized. This paper focuses on mathematical and simulation analysis for different types of heat sink designs for the 30 W multi-output DC–DC converter. Heat sink with inverted trapezoidal fins has resulted in efficient thermal management of the converter at its safe operating temperature of 398 K. Results show that the maximum temperature attained by the converter was 352 K which was in the safe operating zone of the converter. A comparative study of the effectiveness of heat dissipation with respect to maximum temperature attained has been discussed. Mathematical verification of Rayleigh number for different heat sink designs has also been carried out for its critical value.


Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2113
Author(s):  
Jacopo Colussi ◽  
Alessandro La Ganga ◽  
Roberto Re ◽  
Paolo Guglielmi ◽  
Eric Armando

This paper presents the experimental validation, using the opposition method, of a high-power three-phase Wireless-Power-Transfer (WPT) system for automotive applications. The system under test consists of three coils with circular sector shape overlapped to minimize the mutual cross-coupling, a three-phase inverter at primary side and a three-phase rectifier at receiver side. In fact thanks to the delta configuration used to connect the coils of the electromagnetic structure, a three-phase Silicon Carbide (SiC) inverter is driving the transmitter side. The resonance tank capacitors are placed outside of the delta configuration reducing in this way their voltage sizing. This WPT system is used as a 100 kW–85 kHz ultrafast battery charger for light delivery vehicle directly supplied by the power grid of tramways. The adopted test-bench for the WPT charger consists of adding circulating boost converter to the system under test to perform the opposition method technique. The experimental results prove the effectiveness of the proposed structure together with the validation of fully exploited simulation analysis. This is demonstrated by transferring 100 kW with more than 94% DC-to-DC efficiency over 50 mm air gap in aligned conditions. Furthermore, testing of Zero-Current and Zero-Voltage commutations are performed to test the performance of SiC technology employed.


2021 ◽  
Vol 25 (4 Part B) ◽  
pp. 2897-2904
Author(s):  
Sanhua Zhang ◽  
Kunhao Tang ◽  
Xinhong Zheng

The thesis simulates the engine?s installation and uses conditions in the whole vehicle, such as the water tank, fan, the engine?s arrangement in the engine room, accessories and pipe-line connections, etc. to build a test bench for the engine thermal management system. According to the thermal management simulation analysis software KULI modelling, the article designs the bench test conditions according to the parameter input requirements of the thermal management simulation analysis software. The accuracy of the model is verified by comparing simulation and test data, and the NEDC driving cycle is used to simulate the performance of the vehicle cooling system to guide the selection and matching of thermal management system components.


2021 ◽  
Vol 2108 (1) ◽  
pp. 012093
Author(s):  
Jibao Liu ◽  
Huanyong Cui ◽  
Lei Gao ◽  
Jiangtao Wang ◽  
Meiyan Wang ◽  
...  

Abstract The working principle and advantages of proton exchange membrane fuel cell using renewable energy hydrogen as fuel are introduced, the importance of fuel cell thermal management is emphasized, and the performance influencing factors, heat source and design requirements of proton exchange membrane fuel cell are summarized. According to the current research status of fuel cell related thermal management, the methods of simulation analysis of fuel cell with the help of mathematical model are summarized, and the existing problems and solutions of fuel cell heat dissipation and cold start are summarized.


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