Design of a Flow Facility for Quantitative Spectroscopic Studies of High Temperature Species.

Abstract

The objective of this study is the measurement of the infrared absorption coefficients and absorption line spacing of several boron compounds in the gas phase over the temperature range of 300 to 1500 K. In the past year, the following technical progress was made. The apparatus was designed, and the variable temperature flow tube in which the boron compounds are made by reaction was constructed. In initial tests the flow reactor achieved its design temperature of 15oo K, while using only half of the available power of the heating elements. In addition, a separate flow simulation experiment in a scale model of the flow tube was used to verify the design of the critical spectroscopic analysis region and to establish the range of flow conditions over which the flow will be well behaved. Finally, the optical system for the low resolution spectroscopic measurements was fabricated and assembled on the apparatus. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1978
Accession Number
ADA054842

Entities

People

  • Charles E. Kolb
  • Michael E. Gersh

Organizations

  • Center for Epidemiology and Animal Health

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Aluminum Oxides
  • Boron Compounds
  • Coefficients
  • Fluid Mechanics
  • Gas Flow
  • Heating
  • Heating Elements
  • Low Resolution
  • Mass Spectrometers
  • Measurement
  • Models
  • Radiation
  • Reynolds Number
  • Scale Models
  • Simulations

Readers

  • Aerospace Test and Evaluation
  • Combustion science or combustion engineering.
  • Spectroscopy.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster