Calculation of the characteristics of the ignition of a metallized composite propellant using various methods for describing its thermophysical properties

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The ignition of a metallized composite propellant by a local energy source of limited heat content is studied. The main characteristic of the process (ignition delay time) is calculated over a wide range of initial temperatures of the source (800–1500 K) for the actual inhomogeneous structure of the propellant with consideration of the presence of fine metal particles and for an effective heterogeneous structure with thermophysical properties calculated by formulas based on the rule of additivity of the thermophysical properties of the components. The thermal conductivity of the propellant is also calculated by approximate expressions proposed by Maxwell, Frick, Bruggeman, Meredith, Xiao, Hamilton, Cross, Behrens, Misnar, Peterson, Hermans, and Nielsen for polymeric materials containing finely dispersed inclusions with a higher thermal conductivity as compared to the polymer matrix. It is found that the expressions proposed by these authors yield values of the ignition delay time and the minimum initial temperature of the heat source required to initiate combustion that differ from those predicted by the model with account of the real heterogeneous structure by up to 75 and 15%, respectively.

Original languageEnglish
Pages (from-to)133-139
Number of pages7
JournalRussian Journal of Physical Chemistry B
Volume11
Issue number1
DOIs
Publication statusPublished - 1 Jan 2017

Fingerprint

composite propellants
Composite propellants
thermophysical properties
ignition
Ignition
Thermodynamic properties
propellants
Propellants
Thermal conductivity
Time delay
thermal conductivity
time lag
metal particles
energy sources
heat sources
Polymer matrix
Enthalpy
enthalpy
Metals
inclusions

Keywords

  • heterogeneous structure
  • hot particle
  • ignition
  • metallized condensed matter
  • thermal properties

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

@article{d941e180bf8f4186b8e398e79b2e23f9,
title = "Calculation of the characteristics of the ignition of a metallized composite propellant using various methods for describing its thermophysical properties",
abstract = "The ignition of a metallized composite propellant by a local energy source of limited heat content is studied. The main characteristic of the process (ignition delay time) is calculated over a wide range of initial temperatures of the source (800–1500 K) for the actual inhomogeneous structure of the propellant with consideration of the presence of fine metal particles and for an effective heterogeneous structure with thermophysical properties calculated by formulas based on the rule of additivity of the thermophysical properties of the components. The thermal conductivity of the propellant is also calculated by approximate expressions proposed by Maxwell, Frick, Bruggeman, Meredith, Xiao, Hamilton, Cross, Behrens, Misnar, Peterson, Hermans, and Nielsen for polymeric materials containing finely dispersed inclusions with a higher thermal conductivity as compared to the polymer matrix. It is found that the expressions proposed by these authors yield values of the ignition delay time and the minimum initial temperature of the heat source required to initiate combustion that differ from those predicted by the model with account of the real heterogeneous structure by up to 75 and 15{\%}, respectively.",
keywords = "heterogeneous structure, hot particle, ignition, metallized condensed matter, thermal properties",
author = "Glushkov, {D. O.} and Kuznetsov, {G. V.} and Strizhak, {P. A.}",
year = "2017",
month = "1",
day = "1",
doi = "10.1134/S1990793117010031",
language = "English",
volume = "11",
pages = "133--139",
journal = "Russian Journal of Physical Chemistry B",
issn = "1990-7931",
publisher = "Maik Nauka-Interperiodica Publishing",
number = "1",

}

TY - JOUR

T1 - Calculation of the characteristics of the ignition of a metallized composite propellant using various methods for describing its thermophysical properties

AU - Glushkov, D. O.

AU - Kuznetsov, G. V.

AU - Strizhak, P. A.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - The ignition of a metallized composite propellant by a local energy source of limited heat content is studied. The main characteristic of the process (ignition delay time) is calculated over a wide range of initial temperatures of the source (800–1500 K) for the actual inhomogeneous structure of the propellant with consideration of the presence of fine metal particles and for an effective heterogeneous structure with thermophysical properties calculated by formulas based on the rule of additivity of the thermophysical properties of the components. The thermal conductivity of the propellant is also calculated by approximate expressions proposed by Maxwell, Frick, Bruggeman, Meredith, Xiao, Hamilton, Cross, Behrens, Misnar, Peterson, Hermans, and Nielsen for polymeric materials containing finely dispersed inclusions with a higher thermal conductivity as compared to the polymer matrix. It is found that the expressions proposed by these authors yield values of the ignition delay time and the minimum initial temperature of the heat source required to initiate combustion that differ from those predicted by the model with account of the real heterogeneous structure by up to 75 and 15%, respectively.

AB - The ignition of a metallized composite propellant by a local energy source of limited heat content is studied. The main characteristic of the process (ignition delay time) is calculated over a wide range of initial temperatures of the source (800–1500 K) for the actual inhomogeneous structure of the propellant with consideration of the presence of fine metal particles and for an effective heterogeneous structure with thermophysical properties calculated by formulas based on the rule of additivity of the thermophysical properties of the components. The thermal conductivity of the propellant is also calculated by approximate expressions proposed by Maxwell, Frick, Bruggeman, Meredith, Xiao, Hamilton, Cross, Behrens, Misnar, Peterson, Hermans, and Nielsen for polymeric materials containing finely dispersed inclusions with a higher thermal conductivity as compared to the polymer matrix. It is found that the expressions proposed by these authors yield values of the ignition delay time and the minimum initial temperature of the heat source required to initiate combustion that differ from those predicted by the model with account of the real heterogeneous structure by up to 75 and 15%, respectively.

KW - heterogeneous structure

KW - hot particle

KW - ignition

KW - metallized condensed matter

KW - thermal properties

UR - http://www.scopus.com/inward/record.url?scp=85017099574&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85017099574&partnerID=8YFLogxK

U2 - 10.1134/S1990793117010031

DO - 10.1134/S1990793117010031

M3 - Article

AN - SCOPUS:85017099574

VL - 11

SP - 133

EP - 139

JO - Russian Journal of Physical Chemistry B

JF - Russian Journal of Physical Chemistry B

SN - 1990-7931

IS - 1

ER -