A mass-economic assessment of replacement aviation kerosene with cryogenic fuel is carried out based on the analysis mass sensitivity to initial change in aircraft parameters and an example transferring Tu-204 liquefied natural gas (Tu-206 project).

 Algae can provide a variety of fuels for transport, heating or electricity generation, including biodiesel, aviation fuel and biogas.  Algal biofuels are at an experimental stage and are more expensive than fossil fuels.  Algal biofuels could be made more costeffective by extracting other valuable products from algae or incorporating their production into waste water treatment.  Commercial...

Different foam formulations are or could become available where the use of film-forming foam is potentially restricted. Alternative foam formulations have different levels of fire extinguishment and burnback performance. The intent of this paper is to present a framework for determining “how good is good enough” in terms of foam agent performance. The focus is on the required fire extinguishing...