Thermal relations for two-phase expansion with phase equilibrium and example for combustion products of boron-containing fuel

Leonard K. Tower
naca-rm-e57c11
may 1957


Jet engine fuels containing boron forms boric oxide when burned. This substance can exist both as a liquid and a vapor at high temperatures. If a portion of the boric oxide condenses during expansion, the performance of the engine can be affected appreciably.

An Adobe Acrobat (PDF) file of the entire report:
http://naca.central.cranfield.ac.uk/reports/1957/naca-rm-e57c11.pdf