Accession Number:

ADA158647

Title:

Interfacial Chemical Reactions and Transport Phenomena in Flow Systems.

Descriptive Note:

Final rept. 1 Dec 81-30 Nov 83,

Corporate Author:

YALE UNIV NEW HAVEN CT DEPT OF CHEMICAL ENGINEERING

Personal Author(s):

Report Date:

1984-01-01

Pagination or Media Count:

21.0

Abstract:

This report summarizes Yale-High Temperature Chemical Reaction Engineering Laboratory methodsresults for the two-year period ending 113083. 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-Browniandiffusion 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 atmsq cms, 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.

Subject Categories:

  • Physical Chemistry
  • Combustion and Ignition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE