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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /2063/CH7/EX7.19/7_19.sce | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '2063/CH7/EX7.19/7_19.sce')
| -rwxr-xr-x | 2063/CH7/EX7.19/7_19.sce | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/2063/CH7/EX7.19/7_19.sce b/2063/CH7/EX7.19/7_19.sce new file mode 100755 index 000000000..9128f92aa --- /dev/null +++ b/2063/CH7/EX7.19/7_19.sce @@ -0,0 +1,23 @@ +clc
+clear
+//Input data
+d=25;//Diameter of the bore in cm
+l=0.4;//Stroke length in m
+N=300;//Operating speed of the engine in rpm
+n=120;//Number of explosions per minute
+pm=6.7;//Mean effective pressure in kgf/cm^2
+Tnet=90;//Net brake load in kg
+R=0.75;//Radius of brake drum in m
+f=0.22;//Fuel supplied per minute in m^3
+C=4500;//Calorific value of fuel in kcal/m^3
+
+//Calculations
+BHP=(2*3.14*R*N*Tnet)/4500;//Brake horse power in kW
+A=(3.14*d^2)/4;//Area of the cylinder in cm^2
+IHP=(pm*l*A*n)/4500;//Indicated horse power in kW
+H=f*C;//Heat supplied by fuel per minute in kcal
+nt1=((IHP*C)/(990*427))*100;//Thermal efficiency on IHP basis in percent
+nt2=((BHP*C)/(990*427))*100;//Thermal efficiency on BHP basis in percent
+
+//Output
+printf('(a)The brake horse power is %3.2f kW\n (b)Indicated horse power is %3.3f kW\n (c)Thermal efficiency on IHP basis is %3.2f percent\n (d)Thermal efficiency on BHP basis is %3.2f percent',BHP,IHP,nt1,nt2)
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