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 --- 3681/CH6/EX6.9/Ex6_9.sce | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 3681/CH6/EX6.9/Ex6_9.sce (limited to '3681/CH6/EX6.9/Ex6_9.sce') diff --git a/3681/CH6/EX6.9/Ex6_9.sce b/3681/CH6/EX6.9/Ex6_9.sce new file mode 100644 index 000000000..fef103093 --- /dev/null +++ b/3681/CH6/EX6.9/Ex6_9.sce @@ -0,0 +1,21 @@ +// Calculating the specific electric loading +clc; +disp('Example 6.9, Page No. = 6.13') +// Given Data +Pc = 1000;// Core loss (in W) +R = 0.025;// Armature resistance (in ohm) +l = 230;// Specific loss dissipation (in W per degree celsius per meter square) +a = 2;// Since a=z for lap winding +Z = 270;// Number of conductors +L = 0.25;// Core length (in meter) +D = 0.25;// Armature diameter (in meter) +T = 40;// Temperature rise (degree celsius) +// Calculation of the specific electric loading +c = 1/l;// Cooling co-efficient +S = %pi*D*L;// Dissipation surface (in meter square) +Q = S*T/c;// Maximum allowable pwer dissipation from armature surface +Ia = ((Q-Pc)/R)^(1/2);// Armature current (in Ampere) +Iz = Ia/a;// Current in each conductor (in A) +ac = Iz*Z/(%pi*D);// Specific electric loading +disp(ac,'Specific electric loading (ampere conductors per meter)='); +//in book answer is 31000 (ampere conductors per meter). The answers vary due to round off error -- cgit