Datorprogrammet hygro kan användas för estimering av reningsgraden i en anläggning för halvtorr rökgasrening.
Programmet finns in windows och unix-version.
Windows-versionen kan laddas ned till egen maskin eller köras direkt från
Unix-versionen kan köras på aton från
Man kan logga in på aton från någon annan dator med programmet SSH.
Den information användaren ger in i nedanstående exempelkörning är med röd text.
Indata:
fbjondah-UNIX-14:27>/www/fak/tkf/at/Program/bin/hygro
##################################################################
HYGRO a Program for Calculation of the Diffusion- and Dissolution
Limited Conversion in a SDA-reactor with Hygroscopic Additives
(If Desorption Curve is used, it must be available in a Datafile.)
###################### Version 1991-12-15 ########################
Professor Tapio Westerlund, Process Design Laboratory
Department of Chemical Engineering, Abo Akademi University
Biskopsgatan 8, SF-20500 ABO, Finland
E-mail: TWESTERL@ABO.FI
##################################################################
Inlet flue gas temperature (C) : 150
Outgoing flue gas temperature (C) : 60
Give initial data (<Ret> => Default) : <Ret>
eller
Give initial data (<Ret> => Default) : yes
Density of water ( 980.0 kg/m3) : 980
Density of reaction prod. (2500.0 kg/m3) : 2500
Molar mass of " " ( 118.0 g/mol) : 118
Density of dry absorbent (2500.0 kg/m3) : 2500
Weight-% CaOH2 in " " ( 94.0 % ) : 94
Molar mass of the dry gas ( 29.0 g/mol) : 29
Specific heat of " " " ( 1.000 kJ/kg/C) : 1
Diffusivity (0.0000150 m2/s) : 0.000015
Nusselt number ( 2.1 ) : 2.1
Rate constant ( 4.20 s-1 ) : 4.2
Total pressure ( 101.3 kPa ) : 101.3
Heat conductivity (film) (0.0292 W/m/K) : 0.0292
Heat of evaporation (2333.5 kJ/kg) : 2333.5
Datafile (<Ret> => Non-hygroscopic case) : <Ret>
H2O in inlet flue gas (vol-% in wet gas) : 8
SO2 in inlet flue gas (vol-ppm in wet gas): 1000
Specific heat of the inlet wet flue gas = 1.046 kJ/kg/C
Molar mass " " " " " " = 28.437 g/mol
Density " " " " " " = 0.819 kg/m3
Molar mass of the outgoing wet flue gas = 27.820 g/mol
H2O in " " " " " = 13.536 vol-%
Density of " " " " " = 1.017 kg/m3
Wet bulb temperature " " " " = 52.522 C
Dew point " " " " = 51.850 C
Relative humidity " " " " = 67.896 %
Final droplet surface temperature = 60.000 C
Stoichiometric ratio (Ca total/inlet S) : 1.3
Fraction recirculated reactor powder : 0.4
u(tw) = 0.000 kg H2O/kg absorbent
u(t=0) = 11.078 kg H2O/kg absorbent
Slurry density (inlet lime slurry) = 1031.949 kg/m3
Weight-% lime " " " = 7.783 %
Weight-% lime+inert " " " = 8.280 %
Correction factor H = 1.000
Non-hygroscopic Y = 0.718
Shrinking factor y = 0.318
Correction factor F = 1.000
SO2-diffusion limited conversion = 86.631 %
" " (non-hygroscopic) conversion = 86.631 %
B = 0.538
Teta = 12.035
Initial droplet diameter (micro m) : 150
Drying time = 26.099 s
Parameter b (sorbent reactivity) (0-1.0) : .83
G = 0.933
Total conversion of the SDA-reactor = 83.896 %
Stoichiometric ratio (Ca reactor/S inlet)= 1.607
Stoichiometric ratio (Ca reactor/S conv) = 1.916
Stoichiometric ratio (Ca total /S conv) = 1.550
Slurry density (reactor lime slurry) = 1076.591 kg/m3
Weight-% lime " " " = 8.944 %
Weight-% lime+prod " " " = 13.987 %
Weight-% lime+prod+inert " " " = 14.756 %
##################################################################
fbjondah-UNIX-14:27>