M4-NUWC Overview Fontaine.pdf
M4-NUWC Overview Fontaine.pdf M4-NUWC Overview Fontaine.pdf
• • • CaC 2(s) + 2H 2 O (l) Acetylene Generation C 2 H 2(g) + Ca(OH) 2(aq) Highly exothermic reaction (DH = -120 kJ/mole) Reaction kinetics affected by: – Temperature – Purity of CaC2 – Particle size of CaC2 – Rate of addition of water to CaC2 (or CaC2 to water) Storage of C2H2 under low pressure (less than 2 atm)
Carbide / Hydride Fuel System CaC 2(s) CaH 2(s) + 4H2O (l) C2H2(g) + 2H2(g) + 2Ca(OH) 2(aq) C 2 H 2 + 2H 2 + nH 2 O Hydrogenation Reactor and Steam Reformer 2CO + 5H 2 + (3+n)H 2 O 3.5 O 2 (recycle) Gas Generation Chamber SOFC 2H 2 O (l) + Q Burner 2CaCO 3(s) 2CO 2 + (8+n)H 2 O and residual fuel gases 2CO 2 + (8+n)H 2 O
- Page 1 and 2: Advanced Unmanned Undersea Vehicle
- Page 3 and 4: • Joint / Coalition Battlespace M
- Page 5 and 6: Science and Technology for: Shock A
- Page 7 and 8: • • Propulsion and Energy Thrus
- Page 9 and 10: Advanced Air-Independent Energy Sol
- Page 11 and 12: • • • Fuel Flexibility - - -
- Page 13 and 14: SOFC Stack Test Stand Versa Power S
- Page 15 and 16: Fuel Processing (Reformers) Catalyt
- Page 17 and 18: • • 30-Cell NUWC SOFC Lab Syste
- Page 19: • • • • In house Laboratory
- Page 23 and 24: • • • Summary of SOFC Effort
- Page 25 and 26: • • • NaBH 4 Objective: - / H
- Page 27 and 28: Oxidation of BH 4 - Anode BH 4 - Re
- Page 29 and 30: • • • Direct Borohydride Syst
- Page 31 and 32: energy density (Wh/kg) 340 320 300
- Page 33 and 34: single cell potential (V) 1.80 1.60
- Page 35 and 36: Li - Lithium-Seawater Battery Devel
- Page 37 and 38: A outlet Electrolyte Flow Reference
- Page 39 and 40: APPROACH • • • • • Fuel H
- Page 41 and 42: ONR Sponsors: • • Dr. Michele A
Carbide / Hydride Fuel System<br />
CaC 2(s)<br />
CaH 2(s)<br />
+ 4H2O (l) C2H2(g) + 2H2(g) + 2Ca(OH) 2(aq)<br />
C 2 H 2 + 2H 2 + nH 2 O<br />
Hydrogenation<br />
Reactor and<br />
Steam Reformer<br />
2CO + 5H 2 + (3+n)H 2 O<br />
3.5 O 2 (recycle)<br />
Gas Generation Chamber<br />
SOFC<br />
2H 2 O (l)<br />
+<br />
Q Burner<br />
2CaCO 3(s)<br />
2CO 2 + (8+n)H 2 O<br />
and residual fuel gases<br />
2CO 2 + (8+n)H 2 O
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