initial commit / add all books

1 files changed, 16 insertions, 0 deletions

diff --git a/2063/CH9/EX9.13/9_13.sce b/2063/CH9/EX9.13/9_13.sce
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+clc

+clear

+//Input data

+P1=1;//Initial pressure in bar

+P3=9;//Final pressure in bar

+n=1.3;//Compression index

+

+//Calculations

+W1=(n/(n-1))*(P1*10^5*(((P3/P1)^((n-1)/n))-1));//Work done in compression in a single stage per unit volume per kg of air in N m 

+P2=(P1*P3)^(0.5);//Intercooler pressure for perfect intercooling in bar

+W2=2*(n/(n-1))*(P1*10^5*(((P2/P1)^((n-1)/n))-1));//Work done in compression in a two stage compressor per unit volume per kg of air in N m

+Wc=W1-W2;//Saving in work of compression in N m

+nw=((W1-W2)/W1)*100;//Percentage saving in work of compression in percentage

+

+//Output

+printf('Percentage saving in the work of compression of air in two stages instead of single stage is %3.2f percent',nw)