APCP Autoignition: Pressure Deflagration Start

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SUMMARY

The discussion centers on the pressure at which ammonium perchlorate composite propellant (APCP) begins spontaneous deflagration. Participants suggest consulting NASA or JPL for precise information, as online searches yield insufficient results. A participant highlights the relationship between pressure, energy, and density, indicating that the formula for energy is (Pf-Pi)/Density, which can aid in calculations related to deflagration pressure.

PREREQUISITES
  • Understanding of thermodynamics principles, particularly pressure and energy relationships.
  • Familiarity with ammonium perchlorate composite propellant (APCP) properties.
  • Basic knowledge of combustion and deflagration concepts.
  • Ability to perform calculations involving pressure, energy, and density.
NEXT STEPS
  • Research the specific deflagration characteristics of ammonium perchlorate composite propellant (APCP).
  • Learn about the role of pressure in combustion processes.
  • Study the thermodynamic equations relevant to energy calculations in propellants.
  • Investigate resources from NASA and JPL regarding propellant behavior under varying pressure conditions.
USEFUL FOR

Aerospace engineers, chemists, and researchers involved in propellant development and combustion analysis will benefit from this discussion.

Praestrigiator
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What is the pressure at which ammonium perchlorate composite propellant spontaneously begins deflagration?
 
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If google doesn't help, try asking at NASA or JPL, they should know such things.
 
Borek said:
If google doesn't help, try asking at NASA or JPL, they should know such things.
Yeah, I tried googling it but to no avail. I know NASA and JPL will probably take a while to reply to any email or message. Too bad Fermilab is the only science place near me, I'm sure they'd be irritated by being asked questions irrelevant to their field.
 
actually, searching a little further, pressure is force per area, which is apparently equal to energy per volume. So the fact that I couldn't answer this before is because I didn't give enough information. Also the energy is (Pf-Pi)/Density. with this I should be able to calculate at least something helpful to me.
 

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