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Dissertations / Theses on the topic 'Axial Injection'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Mustafa, Z. "Aerodynamic investigation of fluid injection in an axial compressor." Thesis, Cranfield University, 2005. http://dspace.lib.cranfield.ac.uk/handle/1826/10703.

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The main objective of the investigation is to provide a physically realistic model describing the movement of liquid phase in an industrial axial compressor during online washing. ln order to achieve this objective, CFD simulations were developed for predicting the water particle trajectories inside an industrial axial compressor, the rate of evaporation of water droplets on axial compressor blades by inertial impaction, turbulent diffusion, pressure and temperature increments. Simulation of water droplet trajectories and evaporation of water droplet content in designed 260MW gas turbine engin

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2

Mustafa, Zainol. "Aerodynamic investigation of fluid injection in an axial compressor." Thesis, Cranfield University, 2005. http://dspace.lib.cranfield.ac.uk/handle/1826/10703.

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The main objective of the investigation is to provide a physically realistic model describing the movement of liquid phase in an industrial axial compressor during online washing. ln order to achieve this objective, CFD simulations were developed for predicting the water particle trajectories inside an industrial axial compressor, the rate of evaporation of water droplets on axial compressor blades by inertial impaction, turbulent diffusion, pressure and temperature increments. Simulation of water droplet trajectories and evaporation of water droplet content in designed 260MW gas turbine engin

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3

Chi, John Nji. "Air injection in axial compressors : modeling experimental validation, and control of instabilities." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/80502.

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4

Behr, Thomas. "Control of rotor tip leakage and secondary flow by casing air injection in unshrouded axial turbines /." Zürich : ETH, 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17283.

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5

Johnson, Benjamin P. "Observed Flow Characteristics of Rotating Stall Inception and its Prevention Using Discrete Tip Injection in the NASA Stage 35 Axial Compressor with New Analysis Methods." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1212503855.

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6

Ramalingam, Ammaiyappan Arul Kumaran. "Design and Development of a High Swirl Burner with Gaseous Fuel Injection through Porous Tubes." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1511795499271833.

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7

Azzam, Tarik. "Aérodynamique et contrôle de l'écoulement de jeu dans un ventilateur axial obtenu par rotomoulage." Thesis, Paris, ENSAM, 2018. http://www.theses.fr/2018ENAM0080/document.

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Aujourd’hui, la fabrication des turbomachines est conditionnée par des normes de plus en plus restrictives. L'enjeu industriel pour les chercheurs est d'envisager des solutions optimales visant à réduire les sources de perte d'énergie, d'instabilité et du bruit, en particulier l'écoulement de jeu (débit de fuite). Des actions préliminaires ont été élaborées à Arts & Métiers ParisTech sur le rotomoulage du ventilateur axial de refroidissement d'automobile. L'idée de ce travail est d'utiliser la forme creuse induite par le rotomoulage afin de l'exploiter dans le controle de l'écoulement de j

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8

Al-Hasnawi, Adnan Ghareeb Tuaamah [Verfasser], and Eckehard [Akademischer Betreuer] Specht. "Mixing behaviour of side injection of air jets and gaseous fuel jets into the axial flow of tunnel kilns / Adnan Ghareeb Tuaamah Al-Hasnawi ; Betreuer: Eckehard Specht." Magdeburg : Universitätsbibliothek, 2016. http://d-nb.info/1117085953/34.

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9

Al-Hasnawi, Adnan Ghareeb Tuaamah Verfasser], and Eckehard [Akademischer Betreuer] [Specht. "Mixing behaviour of side injection of air jets and gaseous fuel jets into the axial flow of tunnel kilns / Adnan Ghareeb Tuaamah Al-Hasnawi ; Betreuer: Eckehard Specht." Magdeburg : Universitätsbibliothek, 2016. http://nbn-resolving.de/urn:nbn:de:gbv:ma9:1-8342.

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10

Ganvir, Ashish. "Microstructure and Thermal Conductivity of Liquid Feedstock Plasma Sprayed Thermal Barrier Coatings." Licentiate thesis, Högskolan Väst, Avd för tillverkningsprocesser, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-9061.

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Thermal barrier coating (TBC) systems are widely used on gas turbine components to provide thermal insulation and oxidation protection. TBCs, incombination with advanced cooling, can enable the gas turbine to operate at significantly higher temperatures even above the melting temperature of the metallic materials. There is a permanent need mainly of environmental reasons to increase the combustion turbine temperature, hence new TBC solutions are needed.By using a liquid feedstock in thermal spraying, new types of TBCs can be produced. Suspension plasma/flame or solution precursor plasma sprayi

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11

Perraudeau, Amélie. "Couches mésoporeuses de TiO2 déposés par PECVD à la pression atmosphérique en vue d'applications photovoltaïques." Thesis, Limoges, 2019. http://www.theses.fr/2019LIMO0092.

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Un système de dépôt chimique en phase vapeur assisté par plasma doté d’une torche à injection axiale (TIA) a été choisi pour l’élaboration des films de TiO2. Un mode de dépôt dynamique, i.e. en déplaçant le substrat face au plasma, a été mis en place dans l’objectif de recouvrir des surface de l’ordre du centimètre carré. En vue d’utiliser les films de TiO2 en tant que couche active au sein de DSSCs, une structure mésoporeuse colonnaire et cristallisée sous forme anatase doit être idéalement obtenue. L’analyse du plasma, sans et avec le précurseur du titane, par spectroscopie d’émission optiqu

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12

Bruand, Stéphane. "Elaboration d'aimants plastoferrites orientés : optimisation des caractéristiques de la poudre magnétique de départ et de la matrice polymère : calcul des circuits magnétiques pour l'obtention de pièces injectées à orientation radiale ou axiale." Grenoble INPG, 1990. http://www.theses.fr/1990INPG0063.

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L'utilisation des plasto-aimants dans les micromoteurs presente des avantages considerables par rapports aux aimants compacts. L'objectif de cette these est donc l'elaboration d'un compound ferrite-polymere injectable dans un moule, orientable sous champ magnetique, permettant d'obtenir un rotor de micromoteur aux performances egales voire superieures a celles du meme rotor en ferrite fritte isotrope. Pour y parvenir, nous avons resolu trois problemes: 1) mise au point d'une methode de recuit dans un flux de sels permettant d'obtenir une poudre aux qualites magnetiques suffisantes pour l'incor

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13

Lachinov, Mikhail V. "Design studies on the axial injection system of the cyclone-44 cyclotron." Thesis, 1998. http://hdl.handle.net/2429/8172.

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A comprehensive feasibility study of axial injection has been carried out for a compact cyclotron (CYCLONE-44) which the University of Louvain-la-Neuve is building as a post-accelerator/ separator for radioactive ion beams. To achieve a high overall injection efficiency it is necessary to ensure proper 6D beam matching of the injected beam to the cyclotron central region. The results presented encompass all major aspects of a working system: 4D phase-space matching, injection trajectories, spiral inflector calculations, beam bunching in spiral inflectors, choice of the bunching system an

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14

HUANG, HANBO, and 黃漢柏. "The Axial Fan Performance Curve Differences and Corrections in the course of Plastic Injection." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/25184078876825017651.

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碩士<br>國立高雄應用科技大學<br>模具工程系碩士班<br>94<br>The blade profile has a strong effect on the performance curve in axial fan design. However, since the blade is plastic injected, the profile will be altered in the manufacturing process. In this study, the dimension differences of the blade and its effect on the performance curve will be investigated. Dimensions compensation will also be inspected to correct the performance curve variation. In the objective of the dimensions differences, a 3D reversed engineering approach is used. Results show that the deviation is mostly located in the leading and t

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15

Rao, Nikhil Molahally. "Desensitization of over tip leakage in an axial turbine rotor by tip surface coolant injection." 2005. http://etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-908/index.html.

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16

Yeung, Chung-hei (Simon). "Nonlinear control of rotating stall and surge with axisymmetric bleed and air injection on axial flow compressors." Thesis, 1999. https://thesis.library.caltech.edu/785/1/Yeung_ch_1999.pdf.

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The study of compressor instabilities in gas turbine engines has received much attention in recent ears. In particular, rotating stall and surge are major causes of problems ranging from component stress and lifespan reduction to engine explosion. In this thesis, modeling and control of rotating stall and surge using bleed valve and air injection is studied and validated on a low speed, single stage, axial compressor at Caltech. Bleed valve control of stall is achieved only when the compressor characteristic is actuated, due to the fast growth rate of the stall cell compared to the rate limi

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17

Wang, Li-Hong, and 王立紘. "Research on Form Error of Off-Axial Aspherical Reflective Grating Element by Micro Vibratile Injection Embossing Process." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/35xz5x.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>107<br>This study aims to fabricate an off-axial aspherical reflective grating optical element (OAA-RGOE) with micro-structures using integration of injection molding processes. The molding cycle signal and control system of the piezo actuator have been integrated with Micro Vibratile Injection Embossing Molding (MV-IEM), Varithermo Mold Temperature (VMT), and Injection Compression Molding (ICM) for process integration to enhance the precision of the grating element. First, the OAA-RGOE is carried out by conventional injection molding machine in order to find out the

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18

Bromirski, Maciej Piotr Jan. "UV and IR matrix assisted laser desorption/ionization using axial and orthogonal injection time-of-flight mass spectrometers." 2002. http://hdl.handle.net/1993/19610.

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19

Yoon, Moohyun. "A major redesign of the University of Manitoba cyclotron and a study for axial injection of ions into the Princeton University AVF cyclotron." 1986. http://hdl.handle.net/1993/6918.

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The concept of a cyclotron was visualized by Lawrence in 1930 [LAW30], who then implemented the first prototype model at Berkeley which produced a proton beam of 1 MeV [LAW32]. This successful acceleration of particles stimulated many laboratories in many countries around the world, hence more higher energy cyclotrons were built during the next two decades, culminating with the University of Birmingham cyclotron which could accelerate a proton beam up to about 40 MeV. However, the classical cyclotron, as it is usually called nowadays, imposed a limitation on the maximum obtainable energy beca

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20

Dworschak, Ragnar G. "Matrix assisted laser desorption ionization time-of-flight mass spectrometry : velocity measurements using orthogonal and axial injection and applications to characterization of wheat proteins." 2004. http://hdl.handle.net/1993/15837.

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21

Chien-ShenChen and 陳建伸. "Design of Co-axial Type Injector for CO2 Snow Formation." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/65326095412319375707.

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碩士<br>國立成功大學<br>航空太空工程學系碩博士班<br>98<br>This paper investigates the characteristics of CO2 snow formation chamber with Co-axial Type Injector. The design of Co-axial Type Injector including nitrogen auxiliary nozzle in five kinds of different diameters and auxiliary opposed type nitrogen induction system with four different gas pressures has been discussed. Flow field visualization and spray quality are observed by particle image velocimetry(PIV). Result shows that when Co-axial Type Injector uses nitrogen auxiliary nozzle only without auxiliary opposed type nitrogen induction system, and the di

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