Relevant bibliographies by topics / Rotating Disk Reactor

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Rotating Disk Reactor'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Rotating Disk Reactor"

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Wen, Zhuqing, and Jerzy Petera. "Numerical Analysis of The Effect of Hydrodynamics and Operating Conditions on Biodiesel Synthesis in a Rotor-Stator Spinning Disk Reactor." Chemical and Process Engineering 38, no. 2 (2017): 265–81. http://dx.doi.org/10.1515/cpe-2017-0020.

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AbstractA rotor-stator spinning disk reactor for intensified biodiesel synthesis is described and numerically simulated in the present research. The reactor consists of two flat disks, located coaxially and parallel to each other with a gap ranging from 0.1 mm to 0.2 mm between the disks. The upper disk is located on a rotating shaft while the lower disk is stationary. The feed liquids, triglycerides (TG) and methanol are injected into the reactor from centres of rotating disk and stationary disk, respectively. Fluid hydrodynamics in the reactor for synthesis of biodiesel from TG and methanol in the presence of a sodium hydroxide catalyst are simulated, using convection-diffusion-reaction multicomponent transport model with the CFD software ANSYS©Fluent v. 13.0. Effect of operating conditions on TG conversion is particularly investigated. Simulation results indicate that there is occurrence of back flow close to the stator at the outlet zone. Small gap size and fast rotational speed generally help to intensify mixing among reagents, and consequently enhance TG conversion. However, increasing rotational speed of spinning disk leads to more backflow, which decreases TG conversion. Large flow rate of TG at inlet is not recommended as well because of the short mean residence time of reactants inside the reactor.
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Boaventura, Rui A. R., and Alírio E. Rodrigues. "Denitrification kinetics in a rotating disk biofilm reactor." Chemical Engineering Journal 65, no. 3 (1997): 227–35. http://dx.doi.org/10.1016/s1385-8947(97)00019-3.

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Evans, G., and R. Greif. "A Numerical Model of the Flow and Heat Transfer in a Rotating Disk Chemical Vapor Deposition Reactor." Journal of Heat Transfer 109, no. 4 (1987): 928–35. http://dx.doi.org/10.1115/1.3248205.

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Steady, laminar, axisymmetric, and circumferentially uniform flow and heat transfer, including the effects of variable properties and buoyancy, have been modeled within a rotating disk chemical vapor deposition (CVD) reactor. The reactor is oriented vertically, with the hot, isothermal, spinning disk facing upward. The Navier–Stokes and energy equations have been solved for the carrier gas helium. The solutions have been obtained over a range of parameters, which is of importance in CVD applications. The primary parameters are the ratio of the disk temperature to the free stream temperature Tw/T∞, the disk Reynolds number Re = rd2ω/ν∞, a mixed convection parameter Gr/Re3/2 = g(ρ∞ − ρw)/(ρwωων∞), the dimensionless inlet velocity u∞/ων∞, and two geometric parameters ro/rd and L/rd. Results are obtained for the velocity and the temperature fields and for the heat flux at the surface of the rotating disk. Comparisons are made with the one-dimensional, variable-property (excluding buoyant effects), infinite rotating disk solutions of Pollard and Newman. Results are presented in terms of a local Nusselt number. The potential uniformity of CVD in this geometry can be inferred from the variation of the Nusselt number over the surface of the rotating disk. The effects of buoyancy and the finite size of the rotating disk within the cylindrical reactor are clearly evident in the present work.
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Wang, C. A., S. Patnaik, J. W. Caunt, and R. A. Brown. "Growth characteristics of a vertical rotating-disk OMVPE reactor." Journal of Crystal Growth 93, no. 1-4 (1988): 228–34. http://dx.doi.org/10.1016/0022-0248(88)90532-5.

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Thompson, A. G., V. S. Sundaram, G. R. Girard, and L. M. Fraas. "Growth of GaAs in a rotating disk MOCVD reactor." Journal of Crystal Growth 94, no. 4 (1989): 901–10. http://dx.doi.org/10.1016/0022-0248(89)90123-1.

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Leiknes, T., M. Lazarova, and H. Ødegaard. "Development of a hybrid ozonation biofilm-membrane filatration process for the production of drinking water." Water Science and Technology 51, no. 6-7 (2005): 241–48. http://dx.doi.org/10.2166/wst.2005.0643.

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Drinking water sources in Norway are characterized by high concentrations of natural organic matter (NOM), low alkalinity and low turbidity. The removal of NOM is therefore a general requirement in producing potable water. Drinking water treatment plants are commonly designed with coagulation direct filtration or NF spiral wound membrane processes. This study has investigated the feasibility and potential of a hybrid process combining ozonation and biofiltration with a rotating disk membrane for treating drinking water with high NOM concentrations. Ozonation will oxidize the NOM content removing colour and form biodegradable organic compounds, which can be removed in biological filters. A constructed water was used in this study which is representative of ozonated NOM-containing water. A rotating membrane disk bioreactor downstream the ozonation process was used to carry out both the biodegradation as well as biomass separation in the same reactor. Maintenance of biodegradation of the organic matter while controlling biofouling of the membrane and acceptable water production rates was the focus in the study. Three operating modes were investigated. Removal of the biodegradable organics was consistent throughout the study indicating that sufficient biomass was maintained in the reactor for all operating conditions tested. Biofouling control was not achieved through shear-induced cleaning by periodically rotating the membrane disks at high speed. By adding a small amount of sponges in the membrane chamber the biofouling could be controlled by mechanical cleaning of the membrane surface during disk rotation. The overall results indicate that the system can favorably be used in an ozonation/biofiltration process by carrying out both biodegradation as well as biomass separation in the same reactor.
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Rashed, Musaab K., Hayder A. Abdulbari, Mohamad Amran Mohd Salleh, and M. Halim Shah Ismail. "Rotating Disk Apparatus: Types, Developments and Future Applications." Modern Applied Science 10, no. 8 (2016): 198. http://dx.doi.org/10.5539/mas.v10n8p198.

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Power consumption reduction investigations attracted the attention of enormous numbers of researchers in the past few decades due to its high academic and economic impacts. The pumping power losses during the transportation of crude oils are considered as one of the main power consuming applications due to the turbulent mode of transportation. Investigating the possible solutions for this problem is expensive and time consuming due to the large apparatuses needed to simulate the flow in real pipelines. Rotating disk apparatus (RDA) is an instrument mainly comprising a rotating disk and an electrical motor to rotate the disk, which was implemented as an efficient and economical path to simulate what can be done in pipelines through generating a controlled degree of turbulence. This technique was also used in many other scientific applications due to its dynamic mode of operation. For example, a rotating disk electrode was used in electrodeposition processes and to characterize deposition film thickness and uniformity. The rotating disk reactor was employed to investigate the reaction rate between fluids and solid surfaces. The present work evaluates the RDA from different prospective and applications in order to introduce it as an efficient research tools for future dynamic investigations.
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Antileo, Christian, Marlene Roeckel, and Udo Wiesmann. "High Nitrite Buildup During Nitrification in a Rotating Disk Reactor." Water Environment Research 75, no. 2 (2003): 151–62. http://dx.doi.org/10.2175/106143003x140935.

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Cai, Yong, Xiang-Sen Wu, Yong Luo, et al. "Plasma-Assisted Rotating Disk Reactor toward Disinfection of Aquatic Microorganisms." Industrial & Engineering Chemistry Research 58, no. 31 (2019): 13977–86. http://dx.doi.org/10.1021/acs.iecr.9b02562.

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Del Borghi, M., A. Converti, F. Parisi, and G. Ferraiolo. "Continuous alcohol fermentation in an immobilized cell rotating disk reactor." Biotechnology and Bioengineering 27, no. 6 (1985): 761–68. http://dx.doi.org/10.1002/bit.260270602.

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Dissertations / Theses on the topic "Rotating Disk Reactor"

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DIONYSIOU, DIONYSIOS D. "ENGINEERED PROCESS FOR THE PHOTOCATALYTIC TREATMENT OF ORGANIC CONTAMINANTS IN WATER." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin981726931.

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Mullan, E. "Use of a rotating disc reactor for fine chemical synthesis." Thesis, Queen's University Belfast, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.432520.

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Boodhoo, Kamelia. "Process intensification : spinning disc reactor for the polymerisation of styrene." Thesis, University of Newcastle Upon Tyne, 1999. http://hdl.handle.net/10443/508.

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This investigation is concerned with the assessment of the performance of a novel spinning disc reactor (SDR) for the polymerisation of chemically initiated freeradical polymerisation of styrene. The application of high acceleration fields such as those created on the surface of the grooved rotating disc to the polymerising system is aimed at intensifying the polymerisation rate and producing a better quality polymer product. As part of the experimental programme, four separate sets of experimental runs were conducted on a 360 mm diameter grooved rotating disc at a fixed temperature of 88-90°C to explore the effects of disc rotational speed and prepolymer feed conversion/viscosity on the extent of monomer conversion and molecular weight properties (M., MW and MWD) of the product from the SDR. The performance data of the SDR was compared with conventional batch polymerisation data. Both the disc rotational speed and prepolymer feed conversion/viscosity variables were found to have a profound influence on the performance of the SDR. A steady increase in conversion, rate of polymerisation and hence time saving in one pass in the SDR were observed with a rise in the prepolymer feed conversion and rotational speed until, for the latter, an optimal speed of rotation which gave the highest rate of polymerisation was reached. The results have been explained in relation to the effect of disc speed and prepolymer feed viscosity on mean film thickness, mean residence time and film surface instabilities. Furthermore, the SDR product is seen to have generally improved characteristics in terms of narrower molecular weight distribution when compared to polymer prepared in the batch at the same conversion. The large enhancement of the rate of styrene polymerisation in the SDR was discussed in terms of a possible improvement in the BPO initiator efficiency f and non-stationary state polymerisation conditions likely to be prevalent on the rotating disc. The general improvement in SDR product quality was ascribed to the combined effects of a reduced diffusion path length and an intense mixing mechanism within the thin film. A separate experimental study exploring the effects of micromixing efficiency on the conversion and molecular weight properties of styrene polymerisation in the batch was also undertaken. The opposing effects of enhanced micromixing in batch and continuous polymerisation systems were contrasted in a theoretical manner. A theoretical case study highlighting the energy efficiency of the SDR was also carried out. Savings in energy of more than 70% was calculated for a semi-batch process using an industrially adapted spinning disc reactor in comparison to a purely batch process. Finally, a two-stage continuous industrial process for free-radical polymerisation has been proposed consisting of an enhanced tubular reactor in the first stage followed by a parallel arrangement of several rotating disc surfaces. Improvements in intrinsic safety and minimised risks of polymer degradation and thermal runaways are the expected potential benefits. Keywords: Process Intensification, Thin Film, Spinning Disc Reactor, Free Radical Polymerisation, Polystyrene
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Bhatelia, Tejas Jagdish. "Novel reactors for multiphase processes." Curtin University of Technology, Science and Engineering, Department of Chemical Engineering, 2009. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=129027.

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Process intensification tools, such as the capillary reactor, offer several benefits to the chemical process industries due to the well-defined high specific interfacial area available for heat and mass transfer, which increases the transfer rates, and due to low inventories, they also enhance the safety of the process. This has provided motivation to investigate three such tools, namely the capillary microreactor, spinning disc and rotating tube reactors, in this study.<br>The gas-liquid slug flow capillary microreactor intensifies reactor performance through internal circulation caused by the shear between the continuous phase/wall surface and the slug axis, which enhances the diffusivity and consequently increases the reaction rates. However, integrating the complex hydrodynamics of this reactor with its chemical kinetics is a mathematically challenging task. Therefore, in this study, a simple-to-complex approach, using a set of state-of-the-art computational fluid dynamic tools, has been used. Firstly, simulations were performed without any chemical reaction to ascertain the extent of slug flow regime. The model also clearly captured the slug flow generation mechanism which can be used to structurally optimize the angle of entry in these reactors. Finally, the hydrodynamic model was also capable of estimating the pressure drop and slug lengths. After successfully simulating the hydrodynamics of the system, a reaction model was incorporated to study the chemical reaction kinetics. The results were compared with the published experimental work and were found to be in good agreement.<br>The spinning disc reactor utilizes the centrifugal and shear forces to generate thin liquid films characterized with intense interfering waves. This enables a very high heat transfer coefficients to be realized between the disc and liquid, as well as very high mass transfer between the liquid and the bulk gas phase. The waves formed also produce an intense local mixing with very little back mixing. This makes a spinning disc reactor an ideal contactor for multiphase processes. The focus of this study has been to elucidate the hydrodynamic behaviour of the liquid film flow over the horizontal spinning disc. Investigations were also performed to elaborate the local and overall hydrodynamic characteristics of a fully developed spinning disc reactor. Simulation results showed a continuous linear liquid film on the horizontal spinning disc and intense mixing performance in the annulus of the reactor around the disc surface. Finally, the film thickness data from the simulations were compared with the limited amount of data available for this novel process.<br>Rotating tube reactor also uses centrifugal forces to generate the liquid film and a high degree of mixing along with an improved control over the reactant retention times. In this work we have conducted a CFD analysis to understand the hydrodynamics of this new technology for future developments.
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Sun, Xiaojing. "Study of the oxygen reduction reaction on platinum with scanning electrochemical microscopy and rotating disk voltammetry." Master's thesis, Mississippi State : Mississippi State University, 2007. http://library.msstate.edu/etd/show.asp?etd=etd-09242007-102717.

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Ryabova, Anna. "Électrocatalyse de la réduction de l'oxygène et du peroxyde d'hydrogène sur les oxydes de manganèse." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAF011/document.

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Les oxydes de manganèse présentent un grand intérêt en raison de leur activité catalytique pour l'ORR (la réaction de réduction de l’oxygène) en milieu alcalin et peuvent être utilisés comme matériaux sans métaux nobles pour la cathode dans les piles à combustible. La présente thèse est consacrée à l’étude de l’activité d'oxydes de manganèse pour l’ORR. Il a été montré que Mn2O3 avec structure bixbyite a une meilleure activité catalytique vers l'ORR en milieu alcalin que les autres oxydes de manganèse étudiés. L'activité spécifique de Mn2O3 est seulement 4 fois inférieure à celle de Pt à une surtension de 0.3 V (ERH). Le lien entre la structure des oxydes de Mn et l'activité ORR est identifié: l'activité spécifique augmente exponentiellement avec le potentiel du couple redox Mn(III)/Mn(IV) de surface. Pour assurer l'activité électrocatalytique élevée de Mn2O3, il est nécessaire d'ajouter du carbone à la composition d'électrode, ainsi que de garder un potentiel supérieur à 0.7 V (ERH)<br>Manganese oxides are of great interest due to their catalytic activity towards the ORR (the oxygen reduction reaction) in alkaline media and can be used as noble metal-free materials for the cathode in liquid and polymer electrolyte alkaline fuel cells. The present thesis is devoted to the investigation of the ORR activity of manganese oxides. It was shown that Mn2O3 with bixbyite structure has a better catalytic activity toward the ORR in alkaline media than other investigated manganese oxide, the surface activity of Mn2O3 is only 4 times lower than that of Pt at an overvoltage of 0.3 V (RHE). The link between the structure of Mn oxides and the ORR activity is found: the specific ORR activity exponentially increases with the potential of the surface Mn(III)/Mn(IV) red-ox couple. To ensure the high electrocatalytic activity of Mn2O3, it is necessary to add carbon to the electrode composition, as well as to keep potential above 0.7 V (RHE)
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Briega-Martos, Valentín. "Unraveling the oxygen reduction reaction mechanism: occurrence of a bifurcation point before hydrogen peroxide formation." Doctoral thesis, Universidad de Alicante, 2019. http://hdl.handle.net/10045/102311.

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En la presente tesis doctoral se realiza un estudio detallado sobre el mecanismo de la reacción de reducción de oxígeno (ORR) en electrodos monocristalinos de platino. Para ello, se han realizado medidas electroquímicas usando la configuración de electrodo rotatorio de menisco colgante (HMRDE) con superficies con distinta estructura superficial y variando condiciones de la disolución de trabajo como el pH, fuerza iónica o la ausencia o presencia de bromuros. La conclusión principal que se extra de estos experimentos es la posibilidad de la existencia de un punto de bifurcación en el mecanismo, implicando el intermedio OOH, antes de la formación de peróxido de hidrógeno. Además, también se estudia la ORR y la reacción de oxidación de ácido fórmico en electrodos monocristalinos de Pt en presencia de acetonitrilo, como estudio previo al estudio de estas reacciones en disolventes orgánicos con pequeñas cantidades de agua. Por último, se estudia la ORR en un Aza-CMP, lo cual permite obtener información fundamental que se puede aplicar en estudios sobre el mecanismo de la ORR en los sitios activos de materiales de carbón funcionalizados con nitrógeno.
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Poux, Tiphaine. "Study of the oxygen reduction on perovskite-type oxides in alkaline media." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAF001/document.

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La cinétique lente de la réduction de l’oxygène (ORR) est en grande partie responsable de la perte d’énergie de nombreux systèmes de conversion tels que les piles à combustible. Parmi les possibles catalyseurs de l’ORR, les oxydes de type pérovskite sont des candidats prometteurs en milieu alcalin. La présente thèse est consacrée à l’étude de l’activité, du mécanisme et de la stabilité de pérovskites à base de Co et Mn pour l’ORR. Grâce aux techniques d’électrode tournante à disque et disque-anneau (R(R)DE), les études de l’ORR et des transformations d’HO2- sur les couches minces de pérovskite/carbone dans une solution de NaOH ont montré qu’O2 est réduit en OH- via un mécanisme « en série » avec formation d’HO2- intermédiaire. Pour des quantités d’oxyde suffisantes, HO2- est ensuite réduit, ce qui résulte en un mécanisme apparent de 4 électrons. Dans ces électrodes, le carbone joue un double rôle. Il augmente l’activité électrocatalytique en améliorant le contact électrique et il est impliqué dans le mécanisme de l’ORR en catalysant la réduction d’O2 en HO2-, surtout pour les pérovskites à base de cobalt qui sont considérablement moins actives que celles à base de Mn. Néanmoins, l’électrocatalyse de l’ORR semble dégrader les sites actifs des pérovskites<br>The sluggish kinetics of the oxygen reduction reaction (ORR) is largely responsible for the energy losses in energy conversion systems such as fuel cells. Among possible inexpensive catalysts for the ORR, perovskite oxides are promising electrocatalysts in alkaline media. The present thesis is devoted to the investigation of the ORR activity, mechanism and stability of some Co and Mn-based perovskites. The rotating (ring) disk electrode (R(R)DE) studies of the ORR and the HO2- transformations on perovskite/carbon thin layers in NaOH electrolyte prove that O2 is reduced to OH- via a “series” pathway with the HO2- intermediate. For high oxide loadings, the formed HO2- species are further reduced to give a global 4 electron pathway. In these electrodes, carbon plays a dual role. It increases the electrocatalytic activity by improving the electrical contact and it is involved in the ORR mechanism by catalyzing the reduction of O2 into HO2-, especially for Co-based perovskites which display lower reaction rates than Mn-based perovskites
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Benzekri, Najoua. "Contribution au developpement de l'electrode disque-anneau en courant alternatif : applications aux mecanismes de dissolution et passivation anodique." Paris 6, 1988. http://www.theses.fr/1988PA066069.

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Developpement de la methode de l'electrode tournante a disque anneau en regime de perturbation sinusoidale du disque. Etude theorique de la cinetique des reactions electrodes. Faisabilite de la technique pour differents processus: corrosion dissolution active, passivation en milieu acide
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Nemra, Ghinwa. "Comportement electrochimique de nouveaux complexes a liaison pd-pd et pt-pd stabilises par des ligands bidentates ph : :(2)pch::(2)pph::(2)." Strasbourg 1, 1986. http://www.theses.fr/1986STR13055.

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L'etude des proprietes redox d'une vingtaine de complexes mono-, di-, tri- et tetranucleaires du palladium et du platine a ete effectuee par des methodes electrochimiques (electrode a disque tournant, voltamperometrie cyclique et coulometrie) associees a des methodes spectroscopiques (spectrophotometrie d'absorption electronique, rpe et rmn). Les differents mecanismes des reactions redox ont ete etablis en fonction de la nature des metaux et des ligands dans le complexe. On montre qu'on peut modifier de maniere controlee les potentiels d'oxydoreduction et la reversibilite des transferts de charge par un choix convenable de parametres: metaux, ligands (phosphine, co) et milieu d'etude. Les resultats obtenus contribuent a l'etude de la reactivite electrochimique de la liaison metal-metal dans les complexes des metaux de transition
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Book chapters on the topic "Rotating Disk Reactor"

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"AEROBIC GROWTH OF HETEROTROPHS IN ROTATING Disc REACTORS." In Biological Wastewater Treatment, Revised and Expanded. CRC Press, 1998. http://dx.doi.org/10.1201/9780849306730-60.

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Fernndez, Luca, Heidi Van, Tom Breugelmans, Els Tourw, and Annick Hubi. "Modeling and Quantification of Electrochemical Reactions in RDE (Rotating Disk Electrode) and IRDE (Inverted Rotating Disk Electrode) Based Reactors." In Electrochemical Cells - New Advances in Fundamental Researches and Applications. InTech, 2012. http://dx.doi.org/10.5772/35678.

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Schmickler, Wolfgang. "Convection techniques." In Interfacial Electrochemistry. Oxford University Press, 1996. http://dx.doi.org/10.1093/oso/9780195089325.003.0020.

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Forced convection can be used to achieve fast transport of reacting species toward and away from the electrode. If the geometry of the system is sufficiently simple, the rate of transport, and hence the surface concentrations cs of reacting species, can be calculated. Typically one works under steady-state conditions so that there is no need to record current or potential transients; it suffices to apply a constant potential and measure a stationary current. If the reaction is simple, the rate constant and its dependence on the potential can be calculated directly from the experimental data. Working under steady-state conditions has certain advantages; in particular the complications caused by double-layer charging are avoided. On the other hand, convection techniques require a greater volume of solution, and contamination of the electrode surface is even more of a problem than usual because the solution is constantly swept past the electrode surface. The simplest and most commonly used convection apparatus consists of a disc electrode rotating with a constant angular velocity ω. The disc sucks the solution toward its surface, much in the way a propeller would; as the solution approaches the disc, it is swept away radially and tangentially. The transport of the reacting species to the disc occurs both by convection and diffusion. Though the mathematics are complicated, the rate of transport can be calculated exactly for an infinite disc. A particularly nice feature of this setup is the fact that the transport is uniform so that the surface concentration of any reacting species is constant over the surface of the electrode. Right at the disc the convection current perpendicular to the surface vanishes.
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Conference papers on the topic "Rotating Disk Reactor"

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Chen, Rui, Jianjun Li, Xuan Ya, et al. "Computational analysis of GaAs/AlGaAs deposition in MOCVD vertical rotating disk reactor." In 2010 10th IEEE International Conference on Solid-State and Integrated Circuit Technology (ICSICT). IEEE, 2010. http://dx.doi.org/10.1109/icsict.2010.5667717.

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Wenbo Zheng, Jianjun Li, Rui Chen, et al. "Computational analysis of flow field in GaAs-MOCVD vertical rotating disk reactor." In 2011 International Conference on Remote Sensing, Environment and Transportation Engineering (RSETE). IEEE, 2011. http://dx.doi.org/10.1109/rsete.2011.5965678.

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Davis, R. W. "A numerical/experimental investigation of microcontamination in a rotating disk chemical vapor deposition reactor." In The 2000 international conference on characterization and metrology for ULSI technology. AIP, 2001. http://dx.doi.org/10.1063/1.1354413.

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McKee, Mark, Paul Reinert, Peter E. Norris, and Richard A. Stall. "Growth Of InGaAsP Films In A Multi-Wafer High-Speed Rotating Disk Reactor By MOCVD." In 1st Intl Conf on Idium Phosphide and Related Materials for Advanced Electronic and Optical Devices, edited by Louis J. Messick and Rajendra Singh. SPIE, 1989. http://dx.doi.org/10.1117/12.961993.

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George, Pradeep, Jiandong Meng, and Yogesh Jaluria. "OPTIMIZATION OF THE CHEMICAL VAPOR DEPOSITION PROCESS FOR GALLIUM NITRIDE IN A VERTICAL ROTATING DISK REACTOR." In Proceedings of CHT-15. 6th International Symposium on ADVANCES IN COMPUTATIONAL HEAT TRANSFER , May 25-29, 2015, Rutgers University, New Brunswick, NJ, USA. Begellhouse, 2015. http://dx.doi.org/10.1615/ichmt.2015.intsympadvcomputheattransf.840.

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Meng, Jiandong, and Yogesh Jaluria. "Thermal Transport in the Gallium Nitride Chemical Vapor Deposition Process." In ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ht2013-17081.

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A numerical study has been carried out to characterize the metalorganic chemical vapor deposition (MOCVD) growth of Gallium Nitride (GaN) in a rotating-disk reactor. The major objective of this work is to examine the dependence of the growth rate and thin film uniformity on the primary parameters. First of all, for a rotating-disk system, the governing equations involved are obtained. Then, with the effect of thermal buoyancy included and based on the detailed mathematical model and chemical reaction mechanisms, the 3D simulation study is conducted for a rotating reactor. A comparison between the predicted growth rate and experimental data is presented. In addition, the effect of various primary operating and design parameters on the growth rate of GaN and thin-film uniformity is also examined. This provides further insight into the reactor performance and the characteristics of the entire process. The results obtained can also form the basis for the future design and optimization of this system.
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Meng, J., Y. Jaluria, and S. Wong. "Fabrication of GaN Films in a Chemical Vapor Deposition Reactor." In ASME 2013 4th International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/mnhmt2013-22053.

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A three-dimensional numerical study has been carried out on the rotating disk GaN MOCVD process, and it is also coupled with an experimental study on the flow and thermal transport processes in the system. An impingement type reactor, with a rotating base, is considered. The dependence of the thin film growth rate and uniformity on operating conditions such as inflow velocity, rotational speed, and susceptor temperature are investigated in detail. Similarly, the effect of the geometry and configuration of the reactor are studied. The study also considers the effect of thermal and solutal buoyancy on the resulting flow. The flow and the associated transport processes are discussed in detail on the basis of the results obtained to suggest approaches to improve the uniformity of the film, minimize fluid loss and reduce flow recirculation that could affect growth rate and uniformity.
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Weng, William Khoo Chong, Yuma Higashi, Tadashi Narabayashi, Kenichiro Sugiyama, Hiroyuki Ohshima, and Akikazu Kurihara. "Study on Pipe Wastage Mechanism by Liquid Droplet Impingement Erosion II (Measurement of Erosion Rate)." In 18th International Conference on Nuclear Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/icone18-29887.

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Abstract:
Evaluation of wastage rate for nuclear power plant piping is important in maintaining plant reliability and safety. The two commonly well known causes of pipe wastage are liquid droplet impingement erosion (LDIE) and flow accelerated corrosion (FAC). This study is to evaluate the wastage rate of pipe wall and to measure the loss of mass caused by LDIE. A high speed rotating disk and water jet is used to perform LDIE phenomena. In this study, the liquid droplet impinging tests were conducted with the test piece mounted on the high speed rotating disk which crosses thin water jet. The amount of the wastage by LDIE was evaluated by changing the rotational speed, test time and test piece materials. After the experiment, the result of erosion was investigated by observing the surface of the test piece using a digital microscope, and photo was taken. A method of converting the photo into data is used. In this study, LDIE is considered as the main cause of test piece mass difference before and after the experiment. Therefore, a method is designed to evaluate the mass difference. In this method, the difference in volume of the material is calculated. The loss of mass is obtained by multiplying the difference in volume and density of the material. Then, 2-dimensional and 3-dimensional graphs of the test piece are drawn. The analytical code TRAC is used to analysis the liquid droplet velocity in Advance Boiling Water Reactor (ABWR) drain pipe.
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Davis, R. W., E. F. Moore, D. R. Burgess, and M. R. Zachariah. "A microcontamination model for rotating disk chemical vapor deposition reactors." In CHARACTERIZATION AND METROLOGY FOR ULSI TECHNOLOGY. ASCE, 1998. http://dx.doi.org/10.1063/1.56886.

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10

Liu, Heng, Peter A. Zawadzki, and Peter E. Norris. "GaAs atomic-layer epitaxy in a rotating disc reactor." In Semiconductors '92, edited by Roger J. Malik, Chris J. Palmstrom, Salah M. Bedair, Harold G. Craighead, and Randall L. Kubena. SPIE, 1992. http://dx.doi.org/10.1117/12.142660.

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Reports on the topic "Rotating Disk Reactor"

1

Joh, S., and G. H. Evans. Heat transfer and flow stability in a rotating disk/stagnation flow chemical vapor deposition reactor. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/481615.

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2

Winters, W. S., G. H. Evans, and R. Greif. Convective heat transfer and flow stability in rotating disk CVD reactors. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/658151.

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3

Winters, W. S., G. H. Evans, and R. Grief. The influence of convective heat transfer on flow stability in rotating disk chemical vapor deposition reactors. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/552758.

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4

Coltrin, M. E., R. J. Kee, G. H. Evans, E. Meeks, F. M. Rupley, and J. F. Grcar. SPIN (Version 3. 83): A Fortran program for modeling one-dimensional rotating-disk/stagnation-flow chemical vapor deposition reactors. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/6248912.

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