Simulation of Heavy Haul Train Energy Consumption With Locomotive Adhesion Model

2020 ◽  
Author(s):  
Qing Wu ◽  
Maksym Spiryagin ◽  
Colin Cole
Keyword(s):  
Energy Consumption ◽  
3D Model ◽  
Energy Calculation ◽  
Heavy Haul Train ◽  
Heavy Haul ◽  
1D Model ◽  
Research Gap ◽  
Advanced Model ◽  
Energy Consumption Rate ◽  
Adhesion Control

Abstract Conventional train energy calculation models cannot consider locomotive wheel-rail adhesions, traction adhesion control and locomotive dynamics. This paper developed an advanced model to fill this research gap. The model uses a 3D locomotive model with a fully detailed wheel-rail contact model. The locomotive model was integrated into a Longitudinal Train Dynamics model with the consideration of locomotive adhesion control. Energy consumption simulations using a conventional model (1D model) and the new model were conducted and compared. The 3D model reports less energy consumption than the 1D model. Maximum difference in energy consumption rate between the 3D model and the 1D model was 12.5%.

scholarly journals Establishment and Analysis of Energy Consumption Model of Heavy-Haul Train on Large Long Slope

Energies ◽  
2018 ◽  
Vol 11 (4) ◽  
pp. 965 ◽  
Author(s):  
Qiwei Lu ◽  
Bangbang He ◽  
Mingzhe Wu ◽  
Zhichun Zhang ◽  
Jiantao Luo ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Heavy Haul Train ◽  
Energy Consumption Model ◽  
Heavy Haul ◽  
Consumption Model

scholarly journals MODEL-BASED ASSESSMENT OF LONGITUDINAL DYNAMIC PERFORMANCE AND ENERGY CONSUMPTION OF HEAVY HAUL TRAIN ON LONG-STEEP DOWNGRADES

Transport ◽  
2019 ◽  
Vol 34 (3) ◽  
pp. 250-259
Author(s):  
Jin Shi ◽  
Shujing Ren ◽  
Mengran Zhang
Keyword(s):  
Energy Consumption ◽  
Dynamic Performance ◽  
Analytical Tool ◽  
Longitudinal Dynamic ◽  
Heavy Haul Train ◽  
Heavy Haul ◽  
Longitudinal Profiles ◽  
Heavy Haul Trains ◽  
Heavy Haul Railway ◽  
Central South

Longitudinal dynamics performance and energy consumption of heavy haul train should be considered in the design of heavy haul railway profile of long-steep downgrades. A quantitative analytical tool is developed to assess the longitudinal dynamic performance and energy consumption of heavy haul trains with large axle loads on grades with different longitudinal profiles, including a longitudinal dynamic model of the train and a method of calculating the energy consumption during the operation of heavy haul train. The model is then preliminarily validated by the data of coupler force collected in two comprehensive tests. Finally, the proposed analytical tool is used to assess the designed longitudinal track profile of a long-deep downgrade segment of the central south heavy haul railway of Shanxi (China).

scholarly journals 3D model of a Monolithic Honeycomb Adsorber for Electric Swing Adsorption for Carbon Dioxide Capture

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Ivaná Đukic ◽  
Marija Ječmenica Dučić ◽  
Nikola Nikačević ◽  
Menka Petkovska
Keyword(s):  
Carbon Dioxide ◽  
Physical Properties ◽  
Power Plants ◽  
3D Model ◽  
Carbon Dioxide Capture ◽  
Comsol Multiphysics ◽  
Simulation And Optimization ◽  
Electrothermal Desorption ◽  
1D Model ◽  
Simulation Results

The goal of this work was to develop a 3D model of Electric Swing Adsorption pro- cess for carbon dioxide capture from effluent gasses from power plants. Detailed 3D model of the composite honeycomb monolithic adsorber was developed for a sin- gle monolith channel and can be used to simulate and represent different physical properties: velocity, concentration and temperature. The advantage of this model is the fact that all physical properties and results can be presented visually in the 3D domain. COMSOL Multiphysics software was used for solving partial differential equations and simulations of adsorption and electrothermal desorption processes. Some simulation results are presented in this work. The results obtained from 3D simulations will be used for the adsorber model reduction to the 1D model which will be used for modeling and optimization of the whole ESA cycle due to its sim- plicity and computational demands. Simulation and optimization runs based on the 1D model will be performed in g-Proms software.

Experimental research on the dynamic response characteristics of the transition subgrade induced by heavy-haul train passage

2019 ◽  
Vol 233 (9) ◽  
pp. 974-987 ◽  
Author(s):  
Huihao Mei ◽  
Wuming Leng ◽  
Rusong Nie ◽  
Renpan Tu ◽  
Yafeng Li ◽  
...  
Keyword(s):  
Dynamic Response ◽  
Repeated Loading ◽  
Moving Loads ◽  
Response Characteristics ◽  
Heavy Haul Train ◽  
Condition Evaluation ◽  
Heavy Haul ◽  
Variation Characteristics ◽  
Heavy Haul Railway ◽  
Moving Train

The dynamic response of the subgrade under moving train loads provides information on subgrade settlement prediction, condition evaluation, and so forth. This paper presents the field dynamics tests on the transition subgrade in the Shuo-Huang heavy-haul railway in China. The variation characteristics of the peak dynamic displacements along the track and subgrade slope were analyzed, and the random distribution characteristics of the peak dynamic displacements at the subgrade shoulder were studied. The response characteristics of the subgrade during the train passage were investigated, and the attenuation regularities of vibration along the subgrade slope were identified. The results indicated that the action of the train moving loads on the subgrade has obvious periodicity, and two bogies in the adjacent wagons should be considered as one loading unit. The peak dynamic displacements at the subgrade shoulder obey normal distribution under the repeated loading of the loading unit. The subgrade bed is dramatically influenced by the dynamic loadings of the trains, and the moving train loads have little influence on the part below the subgrade bed. The results of the research provide the basis for the evaluation of instantaneous and long-term dynamic stability of the subgrade and offer guidance for simulating train moving loads in the model test and numerical analysis to study the dynamic response of the subgrade.

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