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How Much for an Ethanol/Air/Water Ground-based Burner

Posted by: jabowery - Wed May 19, 2010 5:36 pm
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How Much for an Ethanol/Air/Water Ground-based Burner 
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Post How Much for an Ethanol/Air/Water Ground-based Burner   Posted on: Wed May 19, 2010 5:36 pm
I'm putting together a proposal and the second phase will need an approximate price for a ground-based (intended for fixed, continuous operation in an industrial facility) rocket motor, of minimum cost (ie: minimum size?) with these characteristics:

Results

Propellant composition
Code Name mol Mass (g) Composition
352 ETHANOL 37.2900 1717.8922 2C 6H 1O
15 AIR (DRY AT SEA LEVEL) 1.0000 15479.2332 835N 224O 5AR
976 WATER 512.0000 9223.8235 2H 1O
Density : 2.862 g/cm^3
5 different elements
C H O N AR
Total mass: 26420.948868 g
Enthalpy : -5934.60 kJ/kg

149 possible gazeous species
3 possible condensed species

CHAMBER THROAT EXIT
Pressure (atm) : 136.000 74.360 1.000
Temperature (K) : 900.759 787.136 271.545
H (kJ/kg) : -5934.480 -6114.053 -6859.569
U (kJ/kg) : -6252.229 -6391.720 -6955.358
G (kJ/kg) : -13416.554 -12652.325 -9115.130
S (kJ/(kg)(K) : 8.306 8.306 8.306
M (g/mol) : 23.570 23.570 23.570
(dLnV/dLnP)t : -1.00000 -1.00000 -1.00000
(dLnV/dLnT)p : 1.00000 1.00000 1.00000
Cp (kJ/(kg)(K)) : 1.60581 1.55489 1.35640
Cv (kJ/(kg)(K)) : 1.25306 1.20214 1.00364
Cp/Cv : 1.28152 1.29344 1.35148
Gamma : 1.28152 1.29344 1.35148
Vson (m/s) : 638.12203 599.28794 350.36444

Ae/At : 1.00000 11.30207
A/dotm (m/s/atm) : 6.23091 70.42214
C* (m/s) : 847.40339 847.40339
Cf : 0.70721 1.60515
Ivac (m/s) : 1062.61621 1430.63440
Isp (m/s) : 599.28794 1360.21226
Isp/g (s) : 61.11036 138.70305

Molar fractions

Ar 4.4605e-03 4.4605e-03 4.4605e-03
CO2 6.6544e-02 6.6544e-02 6.6544e-02
H2 1.7141e-08 1.7141e-08 1.7141e-08
H2O 5.5678e-01 5.5678e-01 5.5678e-01
N2 3.7245e-01 3.7245e-01 3.7245e-01


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