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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 /1226/CH12/EX12.5/EX12_5.sce | |
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initial commit / add all books
Diffstat (limited to '1226/CH12/EX12.5/EX12_5.sce')
| -rwxr-xr-x | 1226/CH12/EX12.5/EX12_5.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/1226/CH12/EX12.5/EX12_5.sce b/1226/CH12/EX12.5/EX12_5.sce new file mode 100755 index 000000000..e0c12adae --- /dev/null +++ b/1226/CH12/EX12.5/EX12_5.sce @@ -0,0 +1,20 @@ +clc;funcprot(0);//EXAMPLE 12.5
+// Initialisation of Variables
+N=1800;............//Engine rpm
+theta=32;...........//Crank Travel in degree
+ip=118.2;................//Injection Pressure in bar
+cp=31.38;.................//Combustion chamber Pressure in bar
+Cd=0.9;...............//co-efficient of discharge of orifice
+rhow=1000;...........//Density of water in kg/m^3
+api = 32;..............//API in degree
+pw=11;..................//Power Output in kW
+d=0.47;...................//Fuel Injection orifice diameter in mm
+//Calculation
+spgr= 141.5/(131.5+api);............//Specific Gravity
+tfic=(theta/360)*(60/N);....//Time for Fuel Injection per Cycle in sec
+vf = Cd*sqrt((2*(ip-cp)*10^5)/(spgr*rhow));.............//Actual fuel velocity of injection in m/sec
+mf=vf*spgr*rhow*(%pi/4)*(d/1000)^2;
+tncp=(N/2)*60;...............//Total no of cycles per hour
+FIPC=mf*tfic;.................//Mass of fuel injected per cycle in kg/cycle
+fc=FIPC*tncp*(1/pw);...................//Fuel consumption in kg/kWh
+disp(fc,"Fuel consumption in kg/kWh :")
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