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

---
 1808/CH3/EX3.28/Chapter3_Exampl28.sce | 40 +++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 1808/CH3/EX3.28/Chapter3_Exampl28.sce

(limited to '1808/CH3/EX3.28/Chapter3_Exampl28.sce')

diff --git a/1808/CH3/EX3.28/Chapter3_Exampl28.sce b/1808/CH3/EX3.28/Chapter3_Exampl28.sce
new file mode 100644
index 000000000..353e6574c
--- /dev/null
+++ b/1808/CH3/EX3.28/Chapter3_Exampl28.sce
@@ -0,0 +1,40 @@
+clc
+clear
+//INPUT DATA
+cp=1.005;//specific pressure
+cv=0.718;//specific volume
+R=0.287;//gas constant
+vs=0.01;//Swept volume in m^3
+Rc=18;//compression ratio
+p1=101.325;//Pressure in kN/m^2
+t1=303;//temperature in K
+p3=80*10^2;//pressure in kN/m^2
+g=1.4;//constant
+v2=0.000588;//volume in m^3
+v43=0.0006;//difference in pressure
+
+//CALCULATIONS
+p2=p1*(Rc^g);//pressure in kN/m^2
+a=p3/p2;//Pressure ratio
+v4=v2+v43;//volume in m^3
+ro=v4/v2;//cutoff ratio
+v1=v2+0.01;//volume of cylinder in m^3
+m=p1*v1/(R*t1);//mass of air contained in cylinder in kg
+t2=t1*(Rc^(g-1));//temperature in K
+t3=t2*(p3/p2);//temperature in K
+t4=t3*(v4/v2);//temperature in K
+Qs=(cv*(t3-t2)+cp*(t4-t3))*0.01234;//heat added in kJ
+t5=t4/((v1/v4)^(g-1));//temperature in K
+Qr=cv*(t5-t1)*0.01234;//Heat rejected in kJ
+wn=(Qs-Qr);//workdone per cycle
+nd=(wn/Qs)*100;//Thermal efficiency in percentage
+pm=(wn/vs);//mean effective pressure in kN/m^2
+p5=p1*(t5/t1);//pressure in kN/m^2
+wp=p3*(v4-v2)+((p3*v4-p5*v1)/(g-1));//positive work done 
+Rw=wn/wp;//work ratio
+
+//OUTPUT
+printf('(a)Pressure ratio is %3.2f \n (b)cutoff ratio is %3.4f \n (c)mass of air contained in cylinder is %3.5f kg \n (d)Heat added is %3.2f kJ \n (e)Heat rejected is %3.3f kJ \n (f)workdone per cycle is %3.2f kJ\n (g)Thermal efficiency is %3.2f percentage \n (h)Mean effective pressure is %3.1f kN/m^2 \n (i)The work ratio is %3.4f ',a,ro,m,Qs,Qr,wn,nd,pm,Rw)
+
+
+
-- 
cgit