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/EX3.23/Chapter3_Exampl23.sce | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 1808/CH3/EX3.23/Chapter3_Exampl23.sce (limited to '1808/CH3/EX3.23') diff --git a/1808/CH3/EX3.23/Chapter3_Exampl23.sce b/1808/CH3/EX3.23/Chapter3_Exampl23.sce new file mode 100644 index 000000000..13274156a --- /dev/null +++ b/1808/CH3/EX3.23/Chapter3_Exampl23.sce @@ -0,0 +1,35 @@ +clc +clear +//INPUT DATA +l=20;//Stroke in cm +d=15;//Bore in cm +N=400;//speed in rpm +Rc=22;//compression ratio +p1=101.325;//Pressure in kN/m^2 +t1=303;//temperature in K +n1=1.3;//no of cycles +n2=1.35;//no of cycles +g=1.4;//constant +cp=1.005;//specific pressure +cv=0.718;//specific volume +R=0.287;//gas constnat +v1=0.003698;//specific volume in m^3/s +vs=0.00353;//specific volume in m^3/s +ro=2.68;//cutoff ratio + +//CALCULATIONS +p2=p1*(Rc^(n1));//pressure in kN/m^2 +t2=t1*(Rc^(n1-1));//temperature in K +t3=t2*(ro);//temperature in K +p4=p2*((ro/Rc)^n2);//maximum pressure in kN/m^2 +t4=t3*(1/((Rc/ro)^(n2-1)));//maximum temperature in K +m=p1*v1/(R*t1);//mass flow rate in kg/s +wn=R*((t3-t2)+((t3-t4)/(n2-1))-((t2-t1)/(n1-1)));//work done in kJ/kg +pm=wn*m/(vs);//mean effective pressure in kN/m^2 +Qs=cp*(t3-t2);//heat supplied in kJ/kg +nd=(wn/Qs)*100;//thermal efficiency in percentage +P=wn*m*N/60;//POWER DEVELOPED + +//OUTPUT +printf('(a)The temperature and pressure at all corner points are \n pressure at point 1 is %3.2f kN/m^2 \n temperature at point 2 is %3.2f K \n temperature at point 3 is %3.2f K \n maximum pressure is %3.2f kN/m^2 \n temperature at point 4 is %3.2f K \n(b)The mean effective pressure is %3.3f kN/m^2 \n (c)Thermal efficiency is %3.2f percentage \n (d)Power developed is %3.2f kJ/s ',p2,t2,t3,p4,t4,pm,nd,P) + -- cgit