Propellant Improvement Program. Volume III. Additives for Heat Flux Reduction.
Abstract
The objectives of the task were: to establish the best silicone additive for use with each of three hydrazine type fuels (UDMH, MMH and 50/50) based on solubility and stability tests; to determine physical properties and heat transfer characteristics of the fuel blends; and to establish engine performance and heat flux reduction effects by conducting fire tests with the 50/50 fuel blend and N2O4 oxidizer. Solubility screening tests of 132 compounds showed that UDMH was the best solvent for silicones, with MMH intermediate, and then 50/50 fuel. Fuel blends containing 3 percent concentration by weight of silicone were subjected to 48 hour temperature stability tests and 30 day storage tests. The best additive for each fuel was selected and vapor pressure and density determinations were made. (Author Modified Abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1972
- Accession Number
- AD0756913
Entities
People
- C. M. Schmidt
- H. Joseph Loftus
- L. D. Nasiak
Organizations
- Bell Aircraft Corporation