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Full-Text Articles in Engineering
An Analysis Of The Behavior Of A Non-Newtonian Fluid In A Flow Reactor, Asahiro Ahagon
An Analysis Of The Behavior Of A Non-Newtonian Fluid In A Flow Reactor, Asahiro Ahagon
Chemical and Biological Engineering ETDs
Velocity, temperature and concentration profiles were derived for non-Newtonian laminar flow of a reacting species in a tubular reactor. The equation of motion based on a temperature dependent power-law fluid model and the energy equation with internal heat generation caused by a first order chemical reaction were coupled and solved simultaneously using numerical methods to yield the profiles. The assumptions made in this study were: constant physical properties of the fluid (density, thermal conductivity and heat capacity). fully developed flow, wall temperature and negligible diffusion. Compartmentalized calculations resulted in velocity, temperature and reactant concentration profiles for both the axial and …
An Experimental Study On Heat Transfer Coefficient For Carbon Laden Gas, Jacob Chi-Kwong Huang
An Experimental Study On Heat Transfer Coefficient For Carbon Laden Gas, Jacob Chi-Kwong Huang
Chemical and Biological Engineering ETDs
Abstract
A complete carbon black pilot plant was employed in this study. Carbon laden gas was produced in a furnace and introduced into the outer pipe of a heat exchanger. Air, at the same time, was introduced into
the inner pipe of the heat exchanger cocurrently with the carbon laden gas. Thus, heat, with temperature difference as driving force, would transfer from the carbon laden gas to the air stream. The temperatures along the two streams were measured by iron-constantan thermal couples and recorded by a multi-reading temperature
recorder. Air supply and fuel (C3H8) supply were introduced into the furnace …
Preparation Of Metallic Oxide Aerosols By Vaporization And Degradation Of Organic Compounds, Tom B. Larsen
Preparation Of Metallic Oxide Aerosols By Vaporization And Degradation Of Organic Compounds, Tom B. Larsen
Chemical and Biological Engineering ETDs
Simple, dependable methods for the generation of aerosols are necessary to many forms of research. Specifically inhalation research has a requirement for sub-micron sized insoluble particles.
Two different methods for the production of oxide aerosols from vaporizable compounds were tried. The first method, a modification of the Rapaport-Weinstock generator (R3), consisted of nebulization of a solution into a droplet mist. Next the droplets were vaporized, and condensation nuclei formed from the nonvaporizable impurities in the solution. The vapor was allowed to condense on the nuclei in a relatively large chamber, then the resulting liquid droplet aerosol was dried and converted …