HEAT-TRANSFER CHARACTERISTICS OF 98% H2O2 AT HIGH PRESSURE AND HIGH VELOCITY
Abstract
High-pressure heat-transfer experiments have been conducted with both 90 and 98% H2O2. Electrically heated 3/16- and 1/4-in.-dia ft/sec. Titration of the peroxide after short-duration testing indicated that little or no H2O2 decomposition had occurred in the test section. The short-duration burnout tests have shown that the maximum burnout heat flux is directly proportional to coolant velocity and is insensitive to coolant pressure. The Dittus-Boelter equation was found to yield a conservative estimate of heat-transfer coefficients for 98% H2O2 and is recommended for design purposes. Long-duration tests conducted at velocities of 50 to 150 ft/sec with Inconel 718 tubing indicated that the long-duration burnout heat flux is degenerated to about 65% of that demonstrated in short-duration tests. Titration of the peroxide after these tests indicated that minor H2O2 decomposition had occurred. It can be concluded that 98% H2O2 would be an excellent regenerative coolant in rocket engine systems. The long-duration burnout phenomenon at high pressure can be avoided by limiting the design burnout heat flux to about 65% of the short- duration burnout point. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1966
- Accession Number
- AD0804006
Entities
People
- A. Fink
- D. C. Rousar
- N. E. Van Huff
- R. F. Bechtold
Organizations
- Aerojet Rocketdyne Holdings