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

---
 172/CH11/EX11.3/ex3.sce | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100755 172/CH11/EX11.3/ex3.sce

(limited to '172/CH11/EX11.3/ex3.sce')

diff --git a/172/CH11/EX11.3/ex3.sce b/172/CH11/EX11.3/ex3.sce
new file mode 100755
index 000000000..045aaa202
--- /dev/null
+++ b/172/CH11/EX11.3/ex3.sce
@@ -0,0 +1,39 @@
+//Ques 3
+//To determine the efficiency of a cycle
+clc
+clear
+//1-Inlet state of pump
+//2-Exit state of pump
+P2=4000;//Exit pressure in kPa
+P1=10;//Inlet pressure in kPa
+v=0.00101;//specific weight of water in m^3/kg
+wp=v*(P2-P1);//work done in pipe in kJ/kg
+h1=191.8;//Enthalpy in kJ/kg from table
+h2=h1+wp;//enthalpy in kJ/kg
+//2-Inlet state for boiler
+//3-Exit state for Boiler
+h3=3213.6;//Enthalpy in kJ/kg from table
+//3-Inlet state for high pressure turbine
+//4-Exit state for high pressure turbine
+//s3=s4(Entropy remain same)
+s4=6.7690;//Entropy in kJ/kg from table
+sf=1.7766;//Entropy at liquid state in kJ/kg from table
+sfg=5.1193;//Entropy difference for vapor and liquid state in kJ/kg from table
+x4=(s4-sf)/sfg;//x-factor
+hf=604.7//Enthalpy of liquid state in kJ/kg
+hfg=2133.8;//Enthalpy difference in kJ/kg for turbine
+h4=hf+x4*hfg;//Enthalpy in kJ/kg
+//5-Inlet state for low pressure turbine
+//6-Exit pressure for low pressure turbine
+sf=0.6493;//Entropy in liquid state in kJ/kg for turbine
+h5=3273.4;//enthalpy in kJ/kg 
+s5=7.8985;//Entropy in kJ/kg
+sfg=7.5009;//entropy diff in kJ/kg 
+x6=(s5-sf)/sfg;//x-factor
+hfg=2392.8;//enthalpy difference for low pressure turbine in kj/kg
+h6=h1+x6*hfg;//entropy in kg/kg
+wt=(h3-h4)+(h5-h6);//work output in kJ/kg
+qh=(h3-h2)+(h5-h4);
+
+nth=(wt-wp)/qh;
+printf('Percentage efficiency = %.1f ',nth*100);
\ No newline at end of file
-- 
cgit