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- Drags (Hydrography)<br />Polymers -- Structure -- Analysis<br />Solvents<br />Fluid dynamics (1)
- Electric power production from chemical action<br />Electrocatalysis<br />Electrolytic oxidation (1)
- Unsteady flow (Fluid dynamics)<br />Unsteady flow (Fluid dynamics) -- Computer programs<br />Aquifers<br />Pressure -- Mathematical models (1)
Articles 1 - 4 of 4
Full-Text Articles in Engineering
A Study Of The Anodic Oxidation Of Ethylene On Gold And Gold-Platinum Alloys, San-Cheng Lai
A Study Of The Anodic Oxidation Of Ethylene On Gold And Gold-Platinum Alloys, San-Cheng Lai
Doctoral Dissertations
"The distinctive features of electrochemical energy conversion is the direct conversion of the chemical energy of a reaction into electrical energy without going through the intermediary of heat, thereby avoiding the Carnot limitation. Since it is theoretically possible to obtain electrical energy to the extent of the free energy change of the chemical reaction, the overall thermal efficiencies expected are nearly 100 percent. However, the observed efficiencies of most electrochemical energy converters are considerably lower than this due to a slowness of one or more of the intermediate steps of the overall reaction. There has been a recent surge of …
Liquid Extraction With Single Droplets-Effect Of Chemical Reaction, William Victor Andoe
Liquid Extraction With Single Droplets-Effect Of Chemical Reaction, William Victor Andoe
Doctoral Dissertations
"The circulating drop mass transport model based on Hadamard's dispersed phase stream function was solved numerically to account for a solute diffusing into a droplet and undergoing a first order irreversible reaction with the drop medium for the case where the continuous phase resistance to solute transport is negligible ... Experimental data were obtained for a system which consisted of 2-chloro-2-methylpropane (t-butyl chloride) diffusing from a benzene continuous phase into falling water droplets and undergoing a first order irreversible reaction with the water droplets ... The experimental solute transport rates were a factor of 7 to 10 greater than those …
The Effect Of Polymer Structure On Drag Reduction In Nonpolar Solvents, Gin Chain Liaw
The Effect Of Polymer Structure On Drag Reduction In Nonpolar Solvents, Gin Chain Liaw
Doctoral Dissertations
"The effects of polymer chain flexibility, molecular weight and entanglement capacity, and of polymer solution concentration on drag reduction in nonpolar solvents were studied in this investigation. Three samples of polydimethyl siloxane in toluene, five samples of polyethylene oxide in benzene, two samples of cis-polyisoprene in toluene, trans-polyisoprene in toluene, cis-polybutadiene in toluene, ethyl cellulose in toluene and a copolymer of epichlorohydrin and polyethylene oxide in toluene were studied. Molecular weights of all polymers were estimated from intrinsic viscosity, except for the molecular weight of the copolymer which was given by the manufacturer. Turbulent and laminar flow pressure drop data …
A Numerical Simulation Of Pressure Distribution And Radius Of Drainage In Infinite Radial Aquifers - Constant Rate Case, Alton John Nute
A Numerical Simulation Of Pressure Distribution And Radius Of Drainage In Infinite Radial Aquifers - Constant Rate Case, Alton John Nute
Doctoral Dissertations
"The diffusivity equation for the transient flow of slightly-compressible liquids has been solved for infinite radial aquifers, subject to constant terminal rates, by employing a Romberg integration of the Van Everdingen - Hurst explicitly solution over the transformed integral limits for .01̲TD>500, the classical solutions presented by Carslaw and Jaeger, Mortada, Theis, and others are incorporated in the digital analysis to yield dimensionless pressures for 40 selected dimensionless radius (RD) ratios between 1 and 64 for dimensionless time values of .0005 to 1000.0. A new expression for dimensionless pressure-distribution, PD'(RD, TD), as a fraction of well bore pressure drop …