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/CH5/EX5.9/Chapter5_Exampl9.sce | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 1808/CH5/EX5.9/Chapter5_Exampl9.sce (limited to '1808/CH5/EX5.9/Chapter5_Exampl9.sce') diff --git a/1808/CH5/EX5.9/Chapter5_Exampl9.sce b/1808/CH5/EX5.9/Chapter5_Exampl9.sce new file mode 100644 index 000000000..07249f6ec --- /dev/null +++ b/1808/CH5/EX5.9/Chapter5_Exampl9.sce @@ -0,0 +1,37 @@ +clc +clear +//INPUT DATA +p1=1;//ambient pressure in bar +t1=15;//ambient temperature in Degree C +ps=0.98;//suction pressure in bar +pd=7;//Delivery pressure in bar +ts=30;//suction temperature in Degree C +x=1.25;//ratio of l,d +c=1/15;//clearance +va=100;//volume in m^3/min +n=1.3;//for cylinders + +//CALCULATIONS + +//(a)If ambient and suction conditions are same +nv1=(1+c-c*((pd/p1)^(1/n)))*100;//volumetric efficiency in percentage +vs1=va/nv1;//swept volume in m^3/min +d1=sqrt(0.260146*4/3.14);//bore length in m +l1=x*d1;//stroke in m +N1=500/(2*l1);//Speed in rpm +ip1=(n/(n-1))*p1*10^2*(va/60)*((pd/p1)^((n-1)/n)-1);//indicated power in kW + +//(b)If ambient and suction conditions are different +nv2=(1+c-c*((pd/ps)^(1/n)))*100;//volumetric efficiency in percentage +v14=p1*va*(ts+273)/(ps*(t1+273));//volume of air delivered in m^3/min +vs2=(v14/nv2);//swept volume in m^3/min +d2=sqrt(vs2*4/(3.14*500));//bore length in m +l2=x*d2;//stroke length in m +N2=500/(2*l2);//speed in rpm +ip2=(n/(n-1))*ps*10^2*(v14/60)*((pd/ps)^((n-1)/n)-1);//indicated power in kW + +//OUTPUT +printf('(a)If ambient and suction conditions are same \n (i)volumetric efficiency %3.3f percentage \n (ii)Bore %3.4f m \n stroke %3.4f m \n speed %3.1f rpm \n (iii)Indicated power is %3.2f kW \n (b)If ambient and suction conditions are different \n (i)volumetric efficiency %3.3f percentage \n (ii)Bore %3.4f m \n stroke %3.4f m \n speed %3.1f rpm \n (iii)Indicated power is %3.2f kW \n ',nv1,d1,l1,N1,ip1,nv2,d2,l2,N2,ip2) + + + -- cgit