From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 32/CH7/EX7.03/7_03.sce | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100755 32/CH7/EX7.03/7_03.sce (limited to '32/CH7/EX7.03/7_03.sce') diff --git a/32/CH7/EX7.03/7_03.sce b/32/CH7/EX7.03/7_03.sce new file mode 100755 index 000000000..e354fdf24 --- /dev/null +++ b/32/CH7/EX7.03/7_03.sce @@ -0,0 +1,49 @@ +//pathname=get_absolute_file_path('7.03.sce') +//filename=pathname+filesep()+'7.03-data.sci' +//exec(filename) +//Mass of steam(in kg): +m=15 +//Entering steam: +//Pressure(in bar): +p1=10 +//Temperature(in K): +T1=300+273 +//Leaving steam: +//Pressure(in bar): +p2=0.05 +//Dryness fraction: +x=0.95 +//Velocity(in m/s): +v2=160 +//Atmosheric pressure(in bar): +p0=1 +//Atmospheric temperature(in K): +T0=15+273 +//From steam tables: +h1=3051.2 //kJ/kg +s1=7.1229 //kJ/kg.K +sf=0.4764 //kJ/kg.K +sfg=7.9187 //kJ/kg.K +hf=137.82 //kJ/kg +hfg=2423.7 //kJ/kg +h0=62.99 //kJ/kg +s0=0.2245 //kJ/kg.K +//Enthalpy at exit of turbine(in kJ/kg): +h2=hf+x*hfg +//Entropy at exit of turbine(in kJ/kg.K): +s2=sf+x*sfg +//Work output(in kJ/kg): +W=(h1-h2)-v2^2/2*10^(-3) +//Power output(in kW): +pW=m*W +printf("\nRESULT") +printf("\nPower output = %f kW",pW) +//Maximum work given end states(in kW): +Wmax=(h1-T0*s1)-(h2+v2^2/2*10^(-3)-T0*s2) +printf("\nRESULT") +printf("\n\nMaximum power output = %f kW",m*Wmax) +//Maximum wor kavailable from exhaust steam(in kJ/kg): +Ae=(h2-h0)+v2^2/2*10^(-3)-T0*(s2-s0) +//Maximum power that could be obtained from exhaust steam(in kW): +Wme=m*Ae +printf("\n\nMaximum power from exhaust steam = %f kW",Wme) \ No newline at end of file -- cgit