Effect of the thermophysical properties of the material of a local energy source on conditions and characteristics of ignition of metallized composite propellants

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Abstract

Solid-phase ignition of metallized composite propellants by a single particle heated to a high temperature under conditions of an ideal thermal contact has been numerically studied. The effect of the thermophysical properties of the material of a local energy source on the conditions and characteristics of ignition of composite propellants has been analyzed. It has been found that sources with a high heat storage capacity exhibit shorter ignition delay times for metallized propellants (by 10–60%) and lower initial temperatures required to initiate the combustion process (by 170 K). In addition, it has been found that the presence of particles of metals (boron, aluminum, magnesium, lithium) in the propellant composition leads to an increase in the effective thermal conductivity of the propellant. The cumulative effect of the thermophysical properties of the materials of the “particle heated to a high temperature–metallized composite propellant” system leads to an increase in the ignition delay times (by 25–65%) and the heat penetration depth of the near-surface layer of the propellant (by 25–40%) at the time of combustion initiation compared with metal-free compounds.

Original languageEnglish
Pages (from-to)946-952
Number of pages7
JournalRussian Journal of Physical Chemistry B
Volume10
Issue number6
DOIs
Publication statusPublished - 1 Nov 2016

Fingerprint

composite propellants
Composite propellants
thermophysical properties
propellants
energy sources
Propellants
ignition
Ignition
Thermodynamic properties
Time delay
time lag
Metals
heat storage
Heat storage
Boron
Aluminum
Lithium
metals
Magnesium
solid phases

Keywords

  • ignition
  • local energy source
  • material of particles
  • mathematical simulation
  • metallized composite solid propellant

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

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title = "Effect of the thermophysical properties of the material of a local energy source on conditions and characteristics of ignition of metallized composite propellants",
abstract = "Solid-phase ignition of metallized composite propellants by a single particle heated to a high temperature under conditions of an ideal thermal contact has been numerically studied. The effect of the thermophysical properties of the material of a local energy source on the conditions and characteristics of ignition of composite propellants has been analyzed. It has been found that sources with a high heat storage capacity exhibit shorter ignition delay times for metallized propellants (by 10–60{\%}) and lower initial temperatures required to initiate the combustion process (by 170 K). In addition, it has been found that the presence of particles of metals (boron, aluminum, magnesium, lithium) in the propellant composition leads to an increase in the effective thermal conductivity of the propellant. The cumulative effect of the thermophysical properties of the materials of the “particle heated to a high temperature–metallized composite propellant” system leads to an increase in the ignition delay times (by 25–65{\%}) and the heat penetration depth of the near-surface layer of the propellant (by 25–40{\%}) at the time of combustion initiation compared with metal-free compounds.",
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author = "Glushkov, {D. O.} and Kuznetsov, {G. V.} and Strizhak, {P. A.}",
year = "2016",
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T1 - Effect of the thermophysical properties of the material of a local energy source on conditions and characteristics of ignition of metallized composite propellants

AU - Glushkov, D. O.

AU - Kuznetsov, G. V.

AU - Strizhak, P. A.

PY - 2016/11/1

Y1 - 2016/11/1

N2 - Solid-phase ignition of metallized composite propellants by a single particle heated to a high temperature under conditions of an ideal thermal contact has been numerically studied. The effect of the thermophysical properties of the material of a local energy source on the conditions and characteristics of ignition of composite propellants has been analyzed. It has been found that sources with a high heat storage capacity exhibit shorter ignition delay times for metallized propellants (by 10–60%) and lower initial temperatures required to initiate the combustion process (by 170 K). In addition, it has been found that the presence of particles of metals (boron, aluminum, magnesium, lithium) in the propellant composition leads to an increase in the effective thermal conductivity of the propellant. The cumulative effect of the thermophysical properties of the materials of the “particle heated to a high temperature–metallized composite propellant” system leads to an increase in the ignition delay times (by 25–65%) and the heat penetration depth of the near-surface layer of the propellant (by 25–40%) at the time of combustion initiation compared with metal-free compounds.

AB - Solid-phase ignition of metallized composite propellants by a single particle heated to a high temperature under conditions of an ideal thermal contact has been numerically studied. The effect of the thermophysical properties of the material of a local energy source on the conditions and characteristics of ignition of composite propellants has been analyzed. It has been found that sources with a high heat storage capacity exhibit shorter ignition delay times for metallized propellants (by 10–60%) and lower initial temperatures required to initiate the combustion process (by 170 K). In addition, it has been found that the presence of particles of metals (boron, aluminum, magnesium, lithium) in the propellant composition leads to an increase in the effective thermal conductivity of the propellant. The cumulative effect of the thermophysical properties of the materials of the “particle heated to a high temperature–metallized composite propellant” system leads to an increase in the ignition delay times (by 25–65%) and the heat penetration depth of the near-surface layer of the propellant (by 25–40%) at the time of combustion initiation compared with metal-free compounds.

KW - ignition

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KW - material of particles

KW - mathematical simulation

KW - metallized composite solid propellant

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