Vaporizing and Endothermic Fuels for Advanced Engine Application. Part 2. Studies of Thermal and Catalytic Reactions, Thermal Stabilities, and Combustion Properties of Hydrocarbon Fuels
Abstract
Investigation of the feasibility of using endothermic reactions of hydrocarbons to augment the latent and sensible heat of fuels for cooling engines operating under a high mach number regime is continuing. The dehydrogenation of Decalin over a platinum/Al2O3 catalyst has been studied extensively on a laboratory scale covering the temperature region up to 1200F and pressures to 10 atms, in order to provide kinetic data for the construction of a mathematical model. Production of catalysts have turned up a number of the 536 catalysts examined that are more active than the standard Pt/Al2O3 catalyst, but no breakthrough in either activity or cost has been achieved. Further testing has shown that catalysts which demonstrate improved activity with MCH do the same with Decalin and has confirmed the observation that improved catalyst stability is associated with small pore size. Heat transfer studies in a simulated single tube fuel system have confirmed the mathematical model for the catalytic dehydrogenation of MCH up to a heat flux of 600,000 Btu/hr/sq ft. The thermodynamic and transport properties of trans-Decalin, Shelldyne and JP-7 and a bibliography of recent literature of interest are included.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1968
- Accession Number
- AD0844671
Entities
People
- A. C. Nixon
- A. W. Ritchie
- G. H. Ackerman
- H. T. Henderson
- L. E. Faith