initial commit / add all books

1 files changed, 38 insertions, 0 deletions

diff --git a/32/CH3/EX3.21/3_21.sce b/32/CH3/EX3.21/3_21.sce
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+++ b/32/CH3/EX3.21/3_21.sce
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+//pathname=get_absolute_file_path('3.21.sce')

+//filename=pathname+filesep()+'3.21-data.sci'

+//exec(filename)

+//Volume of bottle(in m^3):

+v1=0.3

+//Pressure in the bottle(in bar):

+p1=35

+//Temperature in the bottle(in K):

+T1=40+273

+//Turbo generator's actual output(in kJ/s):

+w1=5

+//Final prssure(in bar):

+p2=1

+//Final volume(in m^3):

+v2=v1

+//Gas constant for air(in kJ/kg.K):

+Ra=0.287

+//Compression ratio:

+r=1.4

+//% of output which is consumed= 60%

+//Specific heat at const volume(in kJ/kg):

+Cv=0.718

+//Specific heat at const pressure(in kJ/kg):

+Cp=1.005

+//Final temperature(in K):

+T2=T1*(p2/p1)^((r-1)/r)

+//Initial mass in the bottle(in kg):

+m1=p1*10^2*v1/(Ra*T1)

+//Final mass in the bottle(in kg):

+m2=p2*10^2*v2/(Ra*T2)

+//Maximum work that can be obtained(in kJ):

+W=(m1*Cv*T1-m2*Cv*T2)-(m1-m2)*Cp*T2

+//Input to the turbo generator(in kJ/s):

+i=w1/0.6

+//Time duration(in s):

+t=W/i

+printf("\nRESULT\n")

+printf("\nDuration = %f seconds",t)
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