Temperature Measurements of 30-MM Regenerative Liquid Propellant Gun (RLPG) Firings
Abstract
Gas phase temperature measurements were made during 30-mm regenerative liquid propellant gun (RLPG) firings with an invasive spectroscopic technique developed at the Ernst Mach Institute. The technique was based on measuring the brightness temperature of the combustion gas with an optical probe emission gage. Planck's distribution of blackbody emission was used as the basis for calibrating the emission gage, thus providing a theoretical basis for extrapolating the response of the gage beyond the maximum calibration temperature. The propellant used in the test was LGP 1845, which has an adiabatic flame temperature of 2,592 K. The spectroscopic technique, calibration procedure, and experimental results are discussed. The results yielded maximum temperatures between 2,200 K and 2,450 K, or 5 to 15 percent below the adiabatic flame temperature. The results show fair qualitative agreement with a lumped parameter computer model.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1991
- Accession Number
- ADA233720
Entities
People
- John D. Knapton
- Nathan E. Boyer
- Phillip Reeves
- Terence P. Coffee
Organizations
- Ballistic Research Laboratory