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Diffstat (limited to '2774/CH5/EX5.14')
-rwxr-xr-x | 2774/CH5/EX5.14/Ex5_14.sce | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/2774/CH5/EX5.14/Ex5_14.sce b/2774/CH5/EX5.14/Ex5_14.sce new file mode 100755 index 000000000..fbe8b3448 --- /dev/null +++ b/2774/CH5/EX5.14/Ex5_14.sce @@ -0,0 +1,23 @@ +clc
+// initialization of variables
+
+T1=600+273 // initial temperature in kelvin
+P1=2 // initial pressure in MPa
+P2=10 // final pressure in kPa
+mdot=2 // mass flow rate in kg/s
+EffT=0.8 // efficiency of turbine
+WdotT=2496 // theoritical power of turbine in kW
+
+//solution
+Wdota=EffT*WdotT // actual power output of turbine
+h1=3690 // specific enthalpy @ 2MPa and 600 degree celsius
+h2=h1-(Wdota/mdot) // final enthalpy from first law of thermodynamics
+
+T2=((h2-2688)/(2783-2688))*(150-100)+100 // by interpolating from steam table @ P2= 10 kPa, h2=2770
+s2=8.46 // final specific entropy by interpolation from steam table
+
+printf("The temperature by interpolation is %.0f degree celsius \n",T2)
+printf("The final entropy by interpolation is %.2f kJ/kg.K",s2)
+// The temperature and entropy are found by interpolation from steam table and cannot be shown here.
+
+
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