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 --- 1775/CH4/EX4.27/Chapter4_Example27.sce | 35 ++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100755 1775/CH4/EX4.27/Chapter4_Example27.sce (limited to '1775/CH4/EX4.27/Chapter4_Example27.sce') 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================================= -- cgit