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| author | priyanka | 2015-06-24 15:03:17 +0530 |
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| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /1775/CH4/EX4.23/Chapter4_Example23.sce | |
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| -rwxr-xr-x | 1775/CH4/EX4.23/Chapter4_Example23.sce | 40 |
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diff --git a/1775/CH4/EX4.23/Chapter4_Example23.sce b/1775/CH4/EX4.23/Chapter4_Example23.sce new file mode 100755 index 000000000..bdf5111c7 --- /dev/null +++ b/1775/CH4/EX4.23/Chapter4_Example23.sce @@ -0,0 +1,40 @@ +//Chapter-4, Illustration 23, Page 214
+//Title: Steam Nozzles and Steam Turbines
+//=============================================================================
+clc
+clear
+
+//INPUT DATA
+P0=800;//Steam pressure in kPa
+P2=100;//Pressure at point 2 in kPa
+T0=973;//Steam temperature in K
+a1=73;//Nozzle angle in degrees
+ns=0.9;//Steam efficiency
+m=35;//Mass flow rate in kg/s
+Cp=1.005;//Specific heat at constant pressure in kJ/kg-K
+y=1.4;//Ratio of specific heats
+
+//CALCULATIONS
+b1=atand(tand(a1)/2);//Blade angle at inlet in degrees
+b2=b1;//Blade angle at exit in degrees
+p=2/tand(a1);//Flow coefficient
+s=p*(tand(b1)+tand(b2));//Blade loading coefficient
+Dh=ns*Cp*T0*(1-((P2/P0)^((y-1)/y)));//Difference in enthalpies in kJ/kg
+W=(m*Dh)/1000;//Power developed in MW
+
+//OUTPUT
+mprintf('Rotor blade angles are %3.2f degrees and %3.2f degrees \n Flow coefficient is %3.3f \n Blade loading coefficient is %3.0f \n Power developed is %3.1f MW',b1,b2,p,s,W)
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+//==============================END OF PROGRAM=================================
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