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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/EX4.27/Chapter4_Example27.sce | |
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| -rwxr-xr-x | 1775/CH4/EX4.27/Chapter4_Example27.sce | 35 |
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diff --git a/1775/CH4/EX4.27/Chapter4_Example27.sce b/1775/CH4/EX4.27/Chapter4_Example27.sce new file mode 100755 index 000000000..74e60abcf --- /dev/null +++ b/1775/CH4/EX4.27/Chapter4_Example27.sce @@ -0,0 +1,35 @@ +//Chapter-4, Illustration 27, Page 222
+//Title: Steam Nozzles and Steam Turbines
+//=============================================================================
+clc
+clear
+
+//INPUT DATA
+P0=800;//Steam pressure in kPa
+T0=900;//Steam temperature in K
+a1=70;//Nozzle angle in degrees
+ns=0.85;//Steam efficiency
+m=75;//Mass flow rate of steam in kg/s
+R=0.5;//Degree of reaction
+U=160;//Blade speed in m/s
+
+//CALCULATIONS
+C1=U/sind(a1);//Steam speed in m/s
+Ca=C1*cosd(a1);//Axial velocity in m/s
+b1=0;//Blade angle at inlet from velocity triangle in degrees
+b2=a1;//Blade angle at exit in degrees
+a2=b1;//Nozzle angle in degrees
+W=(m*(U^2))/(10^6);//Power developed in MW
+Dhs=(W*1000)/(ns*m);//Isentropic enthalpy drop in kJ/kg
+
+//OUTPUT
+mprintf('Rotor blade angles are %3.0f degrees and %3.0f degrees \n Power developed is %3.2f MW \n Isentropic enthalpy drop is %3.2f kJ/kg',b1,b2,W,Dhs)
+
+
+
+
+
+
+
+
+//==============================END OF PROGRAM=================================
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