2 files changed, 40 insertions, 0 deletions
diff --git a/3685/CH19/EX19.1/Ex19_1.sce b/3685/CH19/EX19.1/Ex19_1.sce
new file mode 100644
index 000000000..df2067d27
--- /dev/null
+++ b/3685/CH19/EX19.1/Ex19_1.sce
@@ -0,0 +1,30 @@
+
+clc
+T2 = 488 
+T1 = 298 
+n = 1.3 
+R =8314/44
+rp = (T2/T1)^(n/(n-1))
+
+b = 0.12 // Bore of compressor
+L = 0.15 // Stroke of compressor
+V1 = (%pi/4)*(b)^2*L  
+P1 = 120e03 // in kPa
+W = ((n*P1*V1)/(n-1))*(((rp)^((n-1)/n))-1)
+P = (W*1200*0.001)/60  
+
+V1_dot = V1*(1200/60)
+m_dot = (P1*V1_dot)/(R*T1)
+
+rp_1 = rp^2
+V2 = (1/rp)^(1/n)*V1
+d = sqrt((V2*4)/(L*%pi))
+printf("\n Example 19.1\n")
+printf("\n Pressure ratio is %f ",rp)
+printf("\n Indicated power is %f kW",P)
+printf("\n Shaft power is %f kW",P/0.8)
+printf("\n Mass flow rate is %f kg/s",m_dot)
+printf("\n Pressure ratio when second stage is added is %f",rp_1)
+printf("\n Volume derived per cycle is V2 %f m^3",V2)
+printf("\n Second stage bore would be %f mm",d*1000)
+//The answers vary due to round off error
diff --git a/3685/CH19/EX19.1/Ex19_1.txt b/3685/CH19/EX19.1/Ex19_1.txt
new file mode 100644
index 000000000..8883f78de
--- /dev/null
+++ b/3685/CH19/EX19.1/Ex19_1.txt
@@ -0,0 +1,10 @@
+ 
+ Example 19.1
+
+ Pressure ratio is 8.476478 
+ Indicated power is 11.249010 kW
+ Shaft power is 14.061263 kW
+ Mass flow rate is 0.072307 kg/s
+ Pressure ratio when second stage is added is 71.850672
+ Volume derived per cycle is V2 0.000328 m^3
+ Second stage bore would be 52.744274 mm 
+\ No newline at end of file