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From page 51...
... 37 4 Rail Mode Simulation Module 4.1 Rail Module Layout and Equations 4.1.1 User Inputs The overall model structure was illustrated in Figure 1. Those worksheets specific to simulating the rail passenger mode are discussed in more detail here.
From page 52...
... 38 Figure 2. Rail Simulation Sheet Layout color legend (primary purpose of Sheet)
From page 53...
... 39 4.1.3 Rail Simulation Process and Equations 4.1.3.1 Pre-processed lookup tables Acceleration, coasting and braking lookup tables (at ‘Rail-Simulation'! E583:V804, ‘RailSimulation'!
From page 54...
... 40 rdiC raii VCTE /C VC rci rbi  Equation 8 where: TEi = Tractive Effort (N) from all power axles in the consist in speed segment i; V = train speed (m/s)
From page 55...
... 41 Figure 3. Illustrative Tractive Effort Curves for Conventional Diesel and VHSR Consists For diesel passenger locomotives, the loading rate of the engine is a relevant factor in its performance as the rate at which the engine can be loaded can constrain its ability to attain the rated torque during acceleration.
From page 56...
... 42 TE = tractive Effort (N) IR = inherent train resistance (N)
From page 57...
... 43 Figure 4. Speed/Distance Profile of 1L/4BLC Consist With And Without Coasting Source: derived from MMPASSIM brake and coast curves for a 1L/4BLC consist.
From page 58...
... 44 distances are found by table lookup of the brake and acceleration tables. These calculations are performed in columns ‘Rail-Simulation'!
From page 59...
... 45 locomotive power limits (column ‘Rail-Simulation'!
From page 60...
... 46 Curves on the route are pre-aggregated into total change of central angle for the route. Curving resistance is characterized by 0.04% gradient-equivalent per degree of central angle (which is equivalent to 0.8 lb/ton/degree of curvature)
From page 61...
... 47 power source. Energy for both traction and hotel power are considered in the fuel calculations.
From page 62...
... 48 4.1.3.3 Grade Climbing and Unscheduled Delays The delay involved in grade climbing is calculated at ‘Rail-Simulation'!
From page 63...
... 49 The delay and energy cost due to temporary slow orders (TSO) are calculated at rows 35 to 40 of the ‘Rail-Simulation' worksheet.
From page 64...
... 50 Table 26. Illustrative Summary Output Within the Rail-Simulation Worksheet Energy Recovery System Traction Energy at shaft/ pantograph Fuel Consumed Traction Hotel Combined*

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