About this Abstract |
Meeting |
12th International Conference on Magnesium Alloys and their Applications (Mg2021)
|
Symposium
|
12th International Conference on Magnesium Alloys and their Applications (Mg 2021)
|
Presentation Title |
Magnesium Hydride Slurry Aerospace Fuel with Net-zero or Net-negative Emissions |
Author(s) |
Yi Jie Wu, Jake Scarponi, Nolan Dexter-Brown, Jagannath Jayachandran, Adam C. Powell |
On-Site Speaker (Planned) |
Yi Jie Wu |
Abstract Scope |
Metals such as aluminum have been used in solid fuel systems for their high energy density. Magnesium has the advantage of low toxicity – indeed, it is a nutrient. The basicity of magnesium oxide in combustion exhaust can react with atmospheric CO₂ and tie it up in precipitation. A slurry of magnesium hydride in a hydrocarbon with 1:1 Mg:C ratio has lower specific energy than jet fuel, but higher energy density which could lead to longer aircraft range. And the MgH₂ can be produced from sea water and electricity with zero emissions. Thermodynamic calculations presented here indicate that this slurry fuel may burn with higher efficiency under engine conditions, particularly at high temperature, if combustion reaches equilibrium. Experiments were carried out to compare slurry droplet combustion kinetics with hydrocarbon fuel. Atmospheric equilibrium and condensation kinetics experiments estimate potential for carbon removal from the atmosphere. |
Proceedings Inclusion? |
Planned: At-meeting proceedings |