Interfacial Chemical Reactions and Transport Phenomena in Flow Systems.
Abstract
This report summarizes Yale-High Temperature Chemical Reaction Engineering Laboratory methods/results for the two-year period ending 11/30/83. Note-worthy findings on interfacial chemical reactions and mass transport include: (1) thermal (Soret) mass transfer can systematically enhance H2-transport rates to catalytic combustion surfaces by up to 20% in forced convection systems; (2) For submicron particle transport (MgO) to cold surfaces in hot combustion gases thermophoresis causes about a 2000-fold increase in the deposition rate (over that expected from convective-(Brownian)diffusion); (3) By accounting for the suction and apparent-source effects associated with thermophoresis within particle laden nonisothermal boundary layers (BLs) simple rational engineering correlations have been proposed and verified via numerical laminar and turbulent BL-boundary calculations; (4) Quantitative, rapid-response measurements of solid gasification kinetics have now been made using an adaptation of microwave-induced-plasma emission spectroscopy. This technique, shown to follow Pt-atom fluxes down to ca. 2 10 to the 13th power atm/sq cm/s, appears to be promising for studying the oxidation kinetics of boron. Originator supplied keywords include: Aerosols, Convective diffusion, Combustion, Deposition, Energy transfer, Fouling, Heterogeneous Catalysis, Flow reactors, Inertial impaction, Optical methods, Soot, Thermal diffusion, Thermophoresis and turbine blades.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1984
- Accession Number
- ADA158647
Entities
People
- D. E. Rosner
Organizations
- Yale University