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

---
 167/CH5/EX5.7/ex7.sce | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100755 167/CH5/EX5.7/ex7.sce

(limited to '167/CH5/EX5.7')

diff --git a/167/CH5/EX5.7/ex7.sce b/167/CH5/EX5.7/ex7.sce
new file mode 100755
index 000000000..58de44e1f
--- /dev/null
+++ b/167/CH5/EX5.7/ex7.sce
@@ -0,0 +1,28 @@
+//example 7
+// power generation by steam turbine
+clear
+clc
+P1= 2 //initial pressure of steam in  MPa
+T1= 400 //initial temp. of steam in °C
+V1= 50 //initial velocity of steam in m/s
+z1= 10 //height of inlet in metres
+h1=3248.4 //initial specific enthalpy of air in kJ/kg
+P2= 15 //final pressure of air in kPa
+V2= 180 //final velocity of air in m/s
+z2= 6 //exit height in m
+x2=0.9 //quality of steam after exit 
+disp('At turbine exit,we obviously have liquid vapour mixture at 15 kPa.')
+hf=225.94 //in kJ/kg 
+hfg=2372.3 //in  kJ/kg
+h2=hf+x2*hfg //final specific enthalpy of mixture in kJ/kg
+dh=h2-h1 // change in enthalpy of steam in kJ/kg
+dke=(V2^2-V1^2)/2000 //change in kinetic energy of steam in kJ/kg
+g=9.8 //acc. due to gravity in m/s^2
+dpe=g*(z2-z1)/1000//change in potential energy of steam in kJ/kg
+wout=-((h2-h1)+(V2^2-V1^2)/2000+g*(z2-z1)/1000) //work done per unit mass of the steam flowing through the turbine in kJ/kg
+m=5000/wout //mass flow rate of steam in kg/s
+printf("\n The value of dh is = %.2f kJ/kg. \n",dh);
+printf("\n The value of dke is = %.2f kJ/kg. \n",dke);
+printf("\n The value of dpe is = %.2f kJ/kg. \n",dpe);
+printf("\n The work done per unit mass of the steam flowing through the turbine is = %.2f kJ/kg. \n",wout);
+printf("\n The mass flow rate of the steam is = %.2f kg/s. \n",m);
\ No newline at end of file
-- 
cgit