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Diffstat (limited to '1808/CH5/EX5.16/Chapter5_Exampl16.sce')
-rw-r--r-- | 1808/CH5/EX5.16/Chapter5_Exampl16.sce | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/1808/CH5/EX5.16/Chapter5_Exampl16.sce b/1808/CH5/EX5.16/Chapter5_Exampl16.sce new file mode 100644 index 000000000..2f205c9d5 --- /dev/null +++ b/1808/CH5/EX5.16/Chapter5_Exampl16.sce @@ -0,0 +1,37 @@ +clc
+clear
+//INPUT DATA
+n=1.3;//index of expansion
+N=2;//no.of stages
+R=0.287;//gas constant
+m=5;//mass flow rate
+t1=288;//temperature in K
+pd=16;//delivery pressure in bar
+p1=1;//pressure in bar
+cp=0.997;//specific pressure in kJ/kgK
+cv=0.71;//specific volume in kJ/kgK
+g=1.4;//constant
+s=400;//speed in rpm
+c1=0.05;//clearance volume
+c2=0.08;//clearance volume
+
+//CALCULATIONS
+ip=N*(n/(n-1))*(m/60)*R*t1*(((pd/p1)^((n-1)/(n*N)))-1);//indicated power in kW
+ipiso=(m/60)*R*t1*log(pd/p1);//indicated power in isothermal condition
+niso=(ipiso/ip)*100;//Isothermal efficiency in percentage
+t2=t1*((pd/p1)^((n-1)/(n*N)));//temperature in K
+Qlp=cv*(g-n)*(t2-t1)*(m/60)/(n-1);//Heat transferred in LP cylinder per second
+Qic=(m/60)*cp*(t2-t1);//Heat transferred in intercooler per seconds
+va=(m/60)*R*t1/(p1*10^2);//Free air delivered in m^3/s
+nvlp=(1+c1-(c1*((pd/p1)^(1/N*n))));//Volumetric efficiency of LP cylinder in percentage
+nvlp1=nvlp*100;//Volumetric efficiency of LP cylinder in percentage
+nvhp=(1+c2-(c2*(pd/p1)^(1/N*n)));//Volumetric efficiency of HP cylinder in percentage
+nvhp1=nvhp*100;//Volumetric efficiency of HP cylinder in percentage
+vslp=va*60/(nvlp*s);//swept volume of LP cylinder
+vshp=va*60/(sqrt(pd*p1)*nvhp*s);//swept volume of HP cylinder
+
+//OUTPUT
+printf('(i)Power required to run the compressor is %3.2f kW \n (ii)Isothermal efficiency is %3.2f percentage \n (iii)Heat transferred in LP cylinder per second is %3.4f kW \n (iv)Free air delivered is %3.5f m^3/sec \n (v)volumetric efficiency of LP is %3.2f percentage \n volumetric efficiency of HP is %3.2f percentage \n swept volume of LP is %3.6f m^3 \n swept volume of HP is %3.6f m^3 \n',ip,niso,Qlp,va,nvlp1,nvhp1,vslp,vshp)
+
+
+
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