Accession Number:

AD0804006

Title:

HEAT-TRANSFER CHARACTERISTICS OF 98% H2O2 AT HIGH PRESSURE AND HIGH VELOCITY

Descriptive Note:

Special rept.

Corporate Author:

AEROJET-GENERAL CORP SACRAMENTO CA LIQUID ROCKET DIV

Report Date:

1966-08-01

Pagination or Media Count:

246.0

Abstract:

High-pressure heat-transfer experiments have been conducted with both 90 and 98 H2O2. Electrically heated 316- and 14-in.-dia ftsec. 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 ftsec 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

Subject Categories:

  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE