Experimental Evaluation on the Performance of a High Energy Fuel with Chlorine Trifluoride

Abstract

A fuel, consisting of 19 to 21 wt. % of NaBH4 dissolved in N2H4, was fired with ClF3 in an uncooled engine with a nominal thrust of 150 lbf and a nominal chamber pressure of 300 psia. The normal ambient pressure was 13.2 psia. Three injectors, a like-on-like, a splash plate and a triplet, were used. N2H4 and ClF3 were fired in the same engine configurations to provide baseline data. There were no significant changes in the NaBH4-N2H4 fuel chemical composition during a 2-year storage period. The ignition and combustion of the 19 to 21 wt. % NaBH4-N2H4/ClF3 combination were hypergolic, smooth, reliable and stable. The peak delivered uncorrected specific impulse of the 19 to 21 wt. % NaBH4-N2H4/ClF3 combination ranged from 217 to 239 lbf-sec/lbm. The peak specific impulse was the least in the like-on-like injector and the most in the triplet injector. Air Force Rocket Propulsion Laboratory theoretical data were verified.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1965
Accession Number
AD0368239

Entities

People

  • Patrick H. Mcnamara

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Human Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Contracts
  • Data Analysis
  • Flow Rate
  • High Energy
  • Law
  • Load Cells
  • Materials
  • Measurement
  • National Security
  • Pressure Transducers
  • Propellants
  • Rocket Engines
  • Rocket Propulsion
  • Security
  • Standards
  • United States

Readers

  • Aerospace Propulsion Engineering.
  • Combustion and Flow Dynamics.
  • Combustion science or combustion engineering.