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/EX4.15/Chapter4_Example15.sce | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100755 1775/CH4/EX4.15/Chapter4_Example15.sce (limited to '1775/CH4/EX4.15/Chapter4_Example15.sce') diff --git a/1775/CH4/EX4.15/Chapter4_Example15.sce b/1775/CH4/EX4.15/Chapter4_Example15.sce new file mode 100755 index 000000000..595d4258a --- /dev/null +++ b/1775/CH4/EX4.15/Chapter4_Example15.sce @@ -0,0 +1,31 @@ +//Chapter-4, Illustration 15, Page 204 +//Title: Steam Nozzles and Steam Turbines +//============================================================================= +clc +clear + +//INPUT DATA +m=3;//Mass flow rate of steam in kg/s +C1=425;//Steam velocity in m/s +r=0.4;//Ratio of blade speed to jet speed +W=170;//Stage output in kW +IL=15;//Internal losses in kW +a1=16;//Nozzle angle in degrees +b2=17;//Blade angle at exit in degrees +W1=265;//Relative velocity at inlet from the velocity triangle in m/s +W2=130;//Relative velocity at outlet from the velocity triangle in m/s + +//CALCULATIONS +U=C1*r;//Blade speed in m/s +P=(W+IL)*1000;//Total power developed in W +Cx=P/(m*W);//Change in whirl velocity in m/s +ndia=((2*U*Cx)/(C1^2))*100;//Blading efficiency +Wr=W2/W1;//Blade velocity co-efficient + +//OUTPUT +mprintf('Blading efficiency is %3.1f percent \n Blade velocity co-efficient is %3.2f',ndia,Wr) + + + + +//==============================END OF PROGRAM================================= -- cgit