A SIMPLE, ACCURATE METHOD FOR DETERMINING THERMAL CONDUCTIVITY OF SOLID PROPELLANTS.

Abstract

A guarded meter apparatus for determining simply and accurately the thermal conductivity of solid propellants and similar materials has been developed. A relatively small amount of propellant (about 1/3 lb) is required. The basic apparatus was fabricated from a Cenco-Fitch Heat Conductivity Apparatus by the addition of a copper guard block which reduces heat loss from the metering block and insures that the heat transfer pattern through the sample is nearly one dimensional. A computer program which considers transient, one-dimensional heat conduction through the sample was prepared for data analysis and is included. Numerous test results with calibrated silicone rubber samples are presented which indicate that accuracy within 4% is entirely reasonable and possible. Thermal conductivities for some solid propellant compositions are also presented. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1968
Accession Number
AD0838813

Entities

People

  • Donald A. Willoughby
  • Edwin L. Allen

Tags

DTIC Thesaurus Topics

  • Computer Programs
  • Computers
  • Conductivity
  • Data Analysis
  • Energy Transfer
  • Heat Loss
  • Heat Transfer
  • Materials
  • Propellants
  • Solid Propellants
  • Thermal Conductivity

Readers

  • Rocket Propulsion.
  • Thermal Physics or Thermal Science.