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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/EX7.4/7_4.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/EX7.4/7_4.sce')
| -rwxr-xr-x | 2063/CH7/EX7.4/7_4.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/2063/CH7/EX7.4/7_4.sce b/2063/CH7/EX7.4/7_4.sce new file mode 100755 index 000000000..091f75785 --- /dev/null +++ b/2063/CH7/EX7.4/7_4.sce @@ -0,0 +1,20 @@ +clc
+clear
+//Input data
+n1=50.5;//Air standard efficiency in percentage
+n2=50;//Brake thermal efficiency in percentage
+N=3000;//Engine speed in rpm
+H=10500;//Heating value of fuel in kcal/kg
+T=7.2;//Torque developed in kgf*m
+B=6.3;//Bore diameter in cm
+S=0.095;//stroke in m
+
+//Calculations
+nbt=(n1/100)*(n2/100);//Brake thermal efficiency in percentage
+B1=(2*(22/7)*N*T)/4500;//Brake horse power in kW
+B2=B1/4;//Brake horse power per cylinder in kW
+Bsf=(4500*60)/(H*427*nbt);//Brake specific fuel consumption in kg/BHP hr
+bmep=(B2*4500)/(S*(3.14*B^2/4)*(N/2));//Brake mean effective pressure in kgf/cm^2
+
+//Output
+printf('(a)Specific fuel consumption is %3.3f kg/BHP hr\n (b)Brake mean effective pressure is %3.3f kgf/cm^2',Bsf,bmep)
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