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

---
 3814/CH7/EX7.1/Ex7_1.sce | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 3814/CH7/EX7.1/Ex7_1.sce

(limited to '3814/CH7/EX7.1')

diff --git a/3814/CH7/EX7.1/Ex7_1.sce b/3814/CH7/EX7.1/Ex7_1.sce
new file mode 100644
index 000000000..082157785
--- /dev/null
+++ b/3814/CH7/EX7.1/Ex7_1.sce
@@ -0,0 +1,27 @@
+// determine inlet and exit angles of blades mean diameter
+// ex 7.1 pgno. 169
+clc
+H=21.8 // head of turbine
+P=21 // MW power
+N=140 // number runs of rpm
+D1=4.5 // diameter in m
+Dh=2.0 // in meter
+nh=0.94 // efficiency
+nn= 0.88// efficiency in exit angles
+g=9.8
+M=(D1+Dh)/2 //mean diameter in m
+mprintf('Mean Diameter  = %f m',M)
+w=(2*N*%pi)/60
+mprintf('\n w= %f rad/s',w)
+u=(w*M)/2
+mprintf('\n u=wr = %f m/s',u)
+Vlw=(nh*g*H)/u
+mprintf('\n Vlw = %f m/s',Vlw)
+Q=(P*1000*1000)/(nn*H*9800) // flow rate
+mprintf('\n Q=%f m3/s',Q)
+vf=(4*Q)/(%pi*((D1^2)-(Dh^2)))
+mprintf('\n Vf = %f m/s',vf)// velocity in m/s
+b1=vf/(u-Vlw) // tan b1
+mprintf(' \n  tanb1 =%f degree ',atand(b1)) // inlet angles
+b2=vf/u // tan b2
+mprintf('\n b2= %f degree',atand(b2))// exit angles
-- 
cgit