From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001 From: prashantsinalkar Date: Tue, 10 Oct 2017 12:27:19 +0530 Subject: initial commit / add all books --- 3472/CH45/EX45.1/Example45_1.sce | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 3472/CH45/EX45.1/Example45_1.sce (limited to '3472/CH45/EX45.1') diff --git a/3472/CH45/EX45.1/Example45_1.sce b/3472/CH45/EX45.1/Example45_1.sce new file mode 100644 index 000000000..36b5e80df --- /dev/null +++ b/3472/CH45/EX45.1/Example45_1.sce @@ -0,0 +1,26 @@ +// 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 7: CONTROL OF MOTORS + +// EXAMPLE : 7.1 : +// Page number 798 +clear ; clc ; close ; // Clear the work space and console + +// Given data +no = 2.0 // Number of motors +V_m = 48.0 // Uniform speed(kmph) +t = 30.0 // Time(sec) +F_t_m = 13350.0 // Average tractive effort per motor(N) + +// Calculations +F_t = no*F_t_m // Average tractive effort(N) +energy = t*F_t*V_m/(2*3600**2) // Useful energy for acceleration(kWh) +energy_loss = energy/no // Approximate loss of energy in starting rheostats(kWh) + +// Results +disp("PART IV - EXAMPLE : 7.1 : SOLUTION :-") +printf("\nApproximate loss of energy in starting rheostats = %.3f kWh", energy_loss) -- cgit