1 files changed, 17 insertions, 0 deletions
diff --git a/2063/CH1/EX1.19/1_19.sce b/2063/CH1/EX1.19/1_19.sce
new file mode 100755
index 000000000..7aec0e42f
--- /dev/null
+++ b/2063/CH1/EX1.19/1_19.sce
@@ -0,0 +1,17 @@
+clc
+clear
+//Input data
+P1=1.5;//Pressure at the 7/8th stroke of compression  in bar
+P2=16;//Pressure at the 1/8th stroke of compression  in bar
+n=1.4;//Polytropic index
+c=8;//Cutoff occurs at 8% of the stroke in percentage
+
+//Calculations
+R1=(P2/P1)^(1/n);//Ratio of volumes
+R2=(R1-1)/((7/8)-(R1/8));//Ratio of stroke volume to the clearance volume
+r=1+R2;//Compression ratio
+rho=1+((c/100)*r);//Cut off ratio
+na=(1-((1/r^(n-1))*(((rho^n)-1)/(n*(rho-1)))))*100;//Air standard efficiency in percentage
+
+//Output
+printf('(a)Compression ratio of the engine is %3.3f\n (b)Air standard efficiency is %3.2f percent',r,na)