ARO 312 Lec 5 Combustion basics

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Author:
jncunningham
ID:
274192
Filename:
ARO 312 Lec 5 Combustion basics
Updated:
2014-06-09 18:22:09
Tags:
aro 312 propulsion combustion
Folders:
ARO 312
Description:
key terms for combustion
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  1. Purpose of Combustion
    The purpose of combustion in a jet engine is to convert the chemical potential energy of the fuel into heat energy which is then converted to kinetic energy of motion.
  2. The minimum energy required to sustain a chemical reaction between two molecules when they collide
    Activation Energy
  3. Determines the frequency of the collisions and defines the Speed of the reaction
    Rate of Reaction
  4. Gibb's Dalton Law
    The pressure of a gas mixture is the sum all of its constituent pressures (also called “partial” pressures). (Dalton)

    The mixture energy, enthalpy and entropy are the sums of the respective constituent energies, enthalpies and entropies. (Gibbs)
  5. Processes that require heat (energy) to take place.
    Endothermic
  6. Processes that give off heat (energy) when they occur.
    Exothermic
  7. Implies complete combustion of reactants.
    Stoichiometric
  8. An individual chemical component of a mixture.
    Specie
  9. The ratio of the number of mole of an individual specie to the total number of moles of the mixture.
    Mole Fraction
  10. Flame speed less than Mach 1
    Deflagration
  11. Flame speed greater than Mach 1
    Detonation

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