From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 213/CH16/EX16.19/16_19.sce | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100755 213/CH16/EX16.19/16_19.sce

(limited to '213/CH16/EX16.19')

diff --git a/213/CH16/EX16.19/16_19.sce b/213/CH16/EX16.19/16_19.sce
new file mode 100755
index 000000000..23af608a0
--- /dev/null
+++ b/213/CH16/EX16.19/16_19.sce
@@ -0,0 +1,25 @@
+//To find power and mass
+clc
+//Given:
+N1=225, N2=200 //rpm
+k=0.5 //m
+E1=15*1000 //N-m
+HolePunched=720 //per hour
+//Solution:
+//Power of the motor:
+//Calculating the total energy required per second
+E=E1*HolePunched/3600 //N-m/s
+//Calculating the power of the motor
+P=E/1000 //kW
+//Minimum mass of the flywheel:
+//Calculating the energy supplied by the motor in 2 seconds
+E2=E*2 //N-m
+//Calculating the energy supplied by the flywheel during punching
+deltaE=E1-E2 //N-m
+//Calculating the mean speed of the flywheel
+N=(N1+N2)/2 //rpm
+//Calculating the minimum mass of the flywheel
+m=round(deltaE*900/(%pi^2*k^2*N*(N1-N2))) //kg
+//Results:
+printf("\n\n Power of the motor, P = %d kW.\n\n",P)
+printf(" Minimum mass of the flywheel, m = %d kg.\n\n",m)
\ No newline at end of file
-- 
cgit