HEAT TRANSFER STUDY OF MHF-5 AND MMH. PART I
Abstract
This report presents the results of an experimental investigation of the heat transfer characteristics of MHF-5 and MMH at subcritical and supercritical pressures. Fifty-five heat transfer tests were conducted with electrically heated 347 stainless steel and Inconel 718 tubes within the following ranges of conditions: 250 to 3960 psia pressure, 17.7 to 205 ft/sec velocity, -42 to 308 F bulk temperature, and heat fluxes up to 49.6 Btu/sq in.- sec. At subcritical pressures, the burnout heat flux of MHF-5 and MMH correlated with the product of velocity and subcooling. A reduction in burnout heat flux, attributed to viscous effects, was observed with MHF-5 and MMH at low bulk temperatures. This behavior was noted in previous investigations with other propellants and a fairly general correlation for predicting this phenomenon was established. An unusual and pronounced effect of pressure on MHF-5 burnout heat flux was observed and empirically correlated. Burnout-like conditions were observed with both propellants at supercritical pressures. It was found that the heat flux at which this condition developed, termed the ultimate heat flux, could be predicted reasonably well with conventional forced convection expressions in conjunction with a maximum wall temperature of 700 F.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1967
- Accession Number
- AD0383410
Entities
People
- Arnold Fink
- Donald C. Rousar
- Norman E. Van Huff
- Roger E. Anderson
Organizations
- Aerojet Rocketdyne Holdings