Digital Commons Network^™

5. Burton Carl Anderson, Otto Vogl

Otto Vogl

No abstract provided.

6. Ichitaro Uematsu, Otto Vogl, Teiji Tsuruta, Yoshiko Uematsu

Otto Vogl

No abstract provided.

8. Paolo Corradini, Otto Vogl, Brigitta Griesbeck Corradini

Otto Vogl

No abstract provided.

9. Oskar Friedrich Olaj, Otto Vogl

Otto Vogl

No abstract provided.

10. Dietrich Braun, Otto Vogl

Otto Vogl

No abstract provided.

11. Binglin He, Otto Vogl, Frank C. Ho (He Zhenchi)

Otto Vogl

No abstract provided.

An Experimental Study Of Molten Microdroplet Surface Deposition And Solidification: Transient Behavior And Wetting Angle Dynamics, Daniel Attinger, Z. Zhao, D. Poulikakos

Daniel Attinger

The basic problem of the impact and solidification of molten droplets on a substrate is of central importance to a host of processes. An important and novel such process in the area of micromanufacturing is solder jetting where microscopic solder droplets are dispensed for the attachment of microelectronic components. Despite the recent appearance of a few numerical studies focusing on the complex transient aspects of this process, no analogous experimental results have been reported to date to the best of our knowledge. Such a study is reported in this paper. Eutectic solder (63Sn37Pb) was melted to a preset superheat and …

Reactive Extraction For Downstream Separation Of 1,3-Propanediol, Janusz J. Malinowski

Janusz J. Malinowski

The downstream separation of 1,3-propanediol from dilute aqueous solution was studied. A process combining reversible reaction of 1,3-propanediol with acetaldehyde to 2-methyl-1,3-dioxane and a simultaneous extraction of the product by organic solvent appears to be technically feasible and attractive. The dioxane yield was 91-92%, the overall conversion of 1,3-propanediol was ca. 98%, and recovery of dioxane into the organic extractant was 75%.

The Influence Of The Isomerization Reactions On The Soybean Oil Hydrogenation Process, Zeljko D. Cupic

Zeljko D Cupic

No abstract provided.

Representation Of Solid-Supercritical Fluid Phase Equilibria Using Cubic Equations Of State, Seif-Eddeen K. Fateen

Seif-Eddeen K Fateen

No abstract provided.

Mathematical Simulations Of Reactors For Catalytic Conversion Of Methane To Syngas With Forced Concentration Cycling, Krzysztof Gosiewski

Krzysztof Gosiewski

In this paper simulation results are presented concerning the partial catalytic oxidation of methane (PCOM) in a reactor with forced composition cycling and packed with a pelletized Pt/MgO catalyst. The reactor operates in two cycles, namely, the ‘hot’ cycle, H, during which mainly the reactants of the strongly exothermal complete combustion reaction (CH4 and O2) are supplied, and the ‘cold’cycle , C, in which mainly the components of the endothermal reforming reactions are introduced (CH4 and H2O or, optionally CO2). The simulations are supplemented with a thermodynamic analysis of the conditions of permanent carbon deposits forming in such a reactor. …

Sixth Pacific Polymer Conference, Ppc-6 Guangzhou, China, Otto Vogl, Xu Mao

Otto Vogl

No abstract provided.

Thermodynamic Analysis Of Convective Heat Transfer In An Annular Packed Bed, Yasar Demirel, R Kahraman

YASAR DEMIREL

A combination of the first and second law of thermodynamics has been utilized in analyzing the convective heat transfer in an annular packed bed. The bed was heated asymmetrically by constant heat fluxes. Introduction of the packing enhances wall to fluid heat transfer considerably, hence reduces the entropy generation due to heat transfer across a finite temperature difference.

Blending Of Immiscible Polymers In A Mixing Zone Of A Twin Screw Extruder- Effects Of Compatibilization, William Macknight, O. Franzheim, T. Rische, M. Stephan

William MacKnight

Miscibility And Characterization Of The Ternary Crystalline System: Poly(Vinyl Butyral)/Poly(Vinyl Alcohol)/Nylon6, William Macknight, H. Jeong, M. Rooney, D. J. David, F. E. Karasz, T. Kajiyama

William MacKnight

No abstract provided.

Miscibility Of Polyvinyl Butyral/Nylon 6 Blends, William Macknight, H. Jeong, M. Rooney, D. J. David, F. E. Karasz, T. Kajiyama

William MacKnight

No abstract provided.

On The Effective Heat Transfer Parameters In A Packed Bed, Yasar Demirel, R.N. Sharma, H.H. Ali

YASAR DEMIREL

Heat transfer behavior of fluid flow through packed tube and channel has an important impact on the de- sign and operation of catalytic reactors.

Thermodynamic Analysis Of Thermomechanical Coupling Incouette Flow, Yasar Demirel

YASAR DEMIREL

Couette ¯ow provides the simplest model for the analysis of heat transfer for ¯ow between parallel plates and between two coaxial cylinders. Design of such devices with the consideration of the thermo- mechanical coupling of viscous heat generation and Couette ¯ow is important since they are used in lubri- cation, polymer and food processing, and viscometry.

Imaging The Reactivity Of Electro-Oxidation Catalysts With The Scanning Electrochemical Microscope, Biren C. Shah, Andrew C. Hillier

Andrew C. Hillier

We describe an application of the scanning electrochemical microscope that utilizes tip-sample feedback to characterize the reactivity of electro-oxidation catalysts. The kinetics of hydrogen oxidation are probed at a platinum electrode as a function of applied potential in aqueous sulfuric acid solution. Tip-sample feedback generates a tip response that reflects the rate of hydrogen oxidation at the substrate. The ability to directly measure the rate constant for hydrogen oxidation is, subsequently, used to perform reactivity mapping of heterogeneous electrodes consisting of catalytic and noncatalytic domains. Differences in reaction kinetics clearly distinguish surface composition variations based upon their reactivity toward hydrogen …