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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
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| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3472/CH43/EX43.11 | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
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| -rw-r--r-- | 3472/CH43/EX43.11/Example43_11.sce | 34 |
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diff --git a/3472/CH43/EX43.11/Example43_11.sce b/3472/CH43/EX43.11/Example43_11.sce new file mode 100644 index 000000000..04866946a --- /dev/null +++ b/3472/CH43/EX43.11/Example43_11.sce @@ -0,0 +1,34 @@ +// A Texbook on POWER SYSTEM ENGINEERING
+// A.Chakrabarti, M.L.Soni, P.V.Gupta, U.S.Bhatnagar
+// DHANPAT RAI & Co.
+// SECOND EDITION
+
+// PART IV : UTILIZATION AND TRACTION
+// CHAPTER 5: ELECTRIC TRACTION-SPEED TIME CURVES AND MECHANICS OF TRAIN MOVEMENT
+
+// EXAMPLE : 5.11 :
+// Page number 784
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+W = 400.0 // Weight of train(tonne)
+G = 100.0/75 // Gradient
+alpha = 1.6 // Acceleration(km phps)
+r = 66.75 // Train resistance(N/tonne)
+I = 10.0 // Rotational inertia(%)
+V = 48.0 // Speed(kmph)
+n = 0.7 // Overall efficiency of equipment
+
+// Calculations
+W_e = W*(100+I)/100 // Accelerating weight of train(tonne)
+F_t = 277.8*W_e*alpha+W*r+98.1*W*G // Tractive effort(N)
+t = V/alpha // Time(sec)
+energy_a = F_t*V*t/(2*3600**2) // Energy usefully employed(kWh)
+G_r = 98.1*G+r // Force(N)
+work_tonne_km = G_r*1000 // Work done per tonne per km(Nw-m)
+energy_b = work_tonne_km/(n*3600) // Energy consumption(Wh per tonne-km)
+
+// Results
+disp("PART IV - EXAMPLE : 5.11 : SOLUTION :-")
+printf("\nCase(a): Energy usefully employed in attaining speed = %.2f kWh", energy_a)
+printf("\nCase(b): Specific energy consumption at steady state speed = %.1f Wh per tonne-km", energy_b)
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