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 --- 1943/CH2/EX2.7/Ex2_7.sce | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100755 1943/CH2/EX2.7/Ex2_7.sce (limited to '1943/CH2/EX2.7/Ex2_7.sce') diff --git a/1943/CH2/EX2.7/Ex2_7.sce b/1943/CH2/EX2.7/Ex2_7.sce new file mode 100755 index 000000000..e927af656 --- /dev/null +++ b/1943/CH2/EX2.7/Ex2_7.sce @@ -0,0 +1,23 @@ + +clc +clear +//Input data +m=10000//Mass flow rate of steam in kg/h +p=3//Pressure of steam in bar +P=1000//Power in kW +n=0.7//Internal efficiency of turbine + +//Calculations +dh=(P*3600)/m//Change in enthalpy in kJ/kg +h2=2725.3//Enthalpy in kJ/kg from Fig. E2.7 +h1=dh+h2//Enthalpy in kJ/kg +dh1h2s=dh/n//Change in enthalpy in kJ/kg +h2s=h1-dh1h2s//Enthalpy in kJ/kg +x2s=(h2s-561.47)/2163.8//Dryness fraction +s2s=1.6718+x2s*(6.999-1.6718)//Entropy in kJ/kg.K +s1=s2s//Entropy in kJ/kg.K +p1=37.3//Pressure in bar from Mollier diagram +t1=344//Temperature in degree C + +//Output +printf('The steam condition required at inlet of the turbine: \n Enthalpy is %3.1f kJ/kg \n Entropy is %3.4f kJ/kg.K \n Pressure is %3.1f bar \n Temperature is %i degree C',h1,s1,p1,t1) -- cgit