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Dissertations / Theses on the topic 'Jet-steam'

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1

Wickramasinghe, G. L. D. "Steam-jet intermingled sewing threads." Thesis, University of Manchester, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.601663.

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The object of the work was to develop the use of high-pressure steam in order to replace air in air-jets in the production of intermingled yarns, particularly for sewmg threads. The thesis discusses the development of air-jet texturing! intermingling and analysis of the process by earlier workers. Differences between steam-flow and air-flow through jets are discussed. The effects of process parameters on steam-jet intermingling and comparisons of steam-jet intermingled yarns and air-jet intermingled yarns have been studied. The results show that steam-jet intermingled yarn has higher strength,
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2

Hedges, Collin R. "Computational fluid dynamic model of steam ingestion into a transonic compressor." Thesis, Monterey, Calif. : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Jun/09Jun%5FHedges.pdf.

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Thesis (M.S. in Mechanical Engiineering)--Naval Postgraduate School, June 2009.<br>Thesis Advisor(s): Gannon, Anthony J. "June 2009." Author(s) subject terms: Computational Fluid Dynamics, Transonic, Compressor, Steam Ingestion, Sanger Rotor. Description based on title screen as viewed on July 10, 2009. Includes bibliographical references (p. 61). Also available in print.
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3

Meyer, Adriaan Jacobus. "Steam jet ejector cooling powered by low grade waste or solar heat." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/2012.

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Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2006.<br>A small scale steam jet ejector experimental setup was designed and manufactured. This ejector setup is of an open loop configuration and the boiler can operate in the temperature range of Tb = 85 °C to 140 °C. The typical evaporator liquid temperatures range from Te = 5 °C t o 10 °C while the typical water cooled condenser presure ranges from Pc = 1 . 70 kPa t o 5. 63 kPa (Tc = 15 °C to 35 °C). The boiler is powered by by two 4kW electric elements, while a 3kW electric element simulates the cooling
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4

Anand, G. "Phenomenological and mathematical modeling of a high pressure steam driven jet injector /." The Ohio State University, 1993. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487842372897594.

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5

Caeiro, Jorge Alberto Jasnau. "A lithium bromide-water absorption refrigeration system combined with steam jet thermal ice storage." Thesis, University of Nottingham, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.405384.

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6

Mora-Perez, José-Luis. "Modélisation de l'énergie thermique véhiculée par des jets vapeur d'eau-sodium liquide." Poitiers, 1988. http://www.theses.fr/1988POIT2329.

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La distribution des temperatures dans les jets vapeurs d'eau-sodium liquide, qui peuvent se produire au cours de fuites dans les generateurs de vapeur des centrales a neutrons rapides, est etudiee dans l'installation experimentale jonas. Deux modelisations des resultats sont presentees: l'une utilise des expressions parametriques semi-empiriques, l'autre est phenomenologique et est base sur les bilans de quantite de mouvement, de masse et d'energie, accompagnes d'un certain nombre d'hypotheses simplificatrices
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7

Smith, Bradley Joseph. "Steam-Assisted Catalysis of n-Dodecane as a Jet Fuel Analogue in a Flow Reactor System for Hypersonic Thermal Management." University of Dayton / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1577978953025703.

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8

Roger, Francis. "Contribution à la théorie des jets gaz-liquide : application à la modélisation de phénomènes d'érosion-corrosion." Poitiers, 1987. http://www.theses.fr/1987POIT2004.

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9

Thakre, Sachin. "On Fuel Coolant Interactions and Debris Coolability in Light Water Reactors." Doctoral thesis, KTH, Kärnkraftssäkerhet, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-166261.

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During the case of a hypothetical severe accident in a light water reactor, core damage may occur and molten fuel may interact with water resulting in explosive interactions. A Fuel-Coolant Interactions (FCI) consists of many complex phenomena whose characteristics determine the energetics of the interactions. The fuel melt initially undergoes fragmentation after contact with the coolant which subsequently increases the melt surface area exposed to coolant and causes rapid heat transfer. A substantial amount of research has been done to understand the phenomenology of FCI, still there are gaps
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10

Foudad, Mohamed. "Impact du changement climatique sur la turbulence en ciel clair pour l'aviation." Electronic Thesis or Diss., Université de Toulouse (2023-....), 2024. http://www.theses.fr/2024TLSES061.

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Dans cette thèse, nous avons exploré l'impact du changement climatique sur la turbulence en ciel clair (CAT), un phénomène affectant la sécurité aérienne et à l'origine de la plupart des accidents dans l'aviation liés aux conditions météorologiques. Des études récentes indiquent une augmentation de la fréquence de la CAT au cours des dernières décennies, tendance qui devrait persister avec le réchauffement climatique. Notre recherche, s'appuyant sur différentes réanalyses atmosphériques et simulations de modèles climatiques, a intégré les incertitudes liées à la variabilité interne et aux modè
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11

Головань, С. В. "Теплонасосна установка з використанням пароструминної термокомпресії". Master's thesis, Сумський державний університет, 2019. http://essuir.sumdu.edu.ua/handle/123456789/76512.

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У роботі розглянуто схеми та принципи дії тепловикористовуючих теплових насосів, до яких відносяться абсорбційні, адсорбційні та пароежекторні насоси. Також виконано термодинамічний аналіз пароструминного термотрансформатора, який працює в режимі теплового насоса. У дослідній частині поставлені задачі дослідження, розроблено теплонасосну установку з використанням пароструминної термокомпресії та досліджено зміни температури випаровування холодильного агента та температури на вході до паронагрівача на ефективність її роботи. У конструкторській частині виконано тепловий конструктивний розраху
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12

Holmquist, Adam, and Oscar Emanuelsson. "Feasibilitetsstudie fartygsframdrift med ångjetstråle : En förstudie om de fysikaliska och tekniska möjligheterna att framdriva fartyg med ångjetstråle." Thesis, Linnéuniversitetet, Sjöfartshögskolan (SJÖ), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-74396.

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En framtida alternativ framdrivningsmetod av fartyg skulle kunna vara en ångjetstråle som expanderas via en ejektor. Syftet med studien var att utföra ett experiment med två olika typer av utloppsmunstycken på ejektorns diffusor, för att därigenom ta reda på vilken design som lämpar sig för denna framdrivningsmetod samt vilken tryckkraft som är möjlig att uppnå. Studiens resultat är tänkt att användas som underlag för fortsatta studier om fartygsframdrift med ångjetstråle via en ejektor, för att eventuellt kunna öka energieffektiviteten i jämförelse med dagens framdrivni
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13

White, Alexander John. "Condensation in steam turbine cascades." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259523.

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14

Taranenko, Anton. "Shattering Kraft Recovery Boiler Smelt by a Steam Jet." Thesis, 2013. http://hdl.handle.net/1807/35142.

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Kraft recovery boiler smelt is shattered into small droplets by an impinging steam jet to prevent smelt-water explosions in the dissolving tank. Inadequate shattering increases the likelihood of dissolving tank explosions. While industry has not dedicated much effort to smelt shattering, the safety implications require smelt shattering to be studied in detail. An experimental set-up was constructed to simulate the shattering operation using a water-glycerine solution and air instead of smelt and steam respectively. The objective was to examine how physical properties and flow characteristics a
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15

Mitchley, Stephen Ronald. "Vacuum boiling of water in a steam jet refrigeration system." Thesis, 2014.

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This experim ental project aims to describe the influencing factors in the vacuum boiling o f w ater in w ater vapour refrigeration system s Testing was conducted using a 2 kW three-stage steam je t ejector system, w ith barom etric condensers, as the com pression device. Three direct-contact evaporators were used to investigate the boiling phenom ena. T hese were : a through-flow evaporator w here heal and mass transfer rates were established for boiling m echanism s at various positions within the evaporator; a vertical cylinder where small quantities o f w ater were subjected to rapid
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16

Lin, Yen-An, and 林晏安. "Effect of steam jet cooking on the physicochemical characteristics of different corn starches." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/87445630650848128664.

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碩士<br>國立宜蘭大學<br>食品科學系碩士班<br>98<br>Starch is a nature macromolecule polymer. The properties of natural starch often cannot conform to the needs of food processor. To meet the demands for processed food, the physical or chemical methods were used to change the properties of natural starch. The technique of steam direct cooking has been used commercially to prepare milk for many years. The cooking method involves pumping food slurry through an orifice where it is mixed with steam at high temperature and pressure. Steam passing through the cooker formed intense turbulence, it not only heated food
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17

Hsu, Yu-Lin, and 徐瑜璘. "Effect of Steam Jet Cooking and Cooling Rate on Resistant Starch Content of Rice Flour and Starch." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/94997973887653476628.

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碩士<br>國立宜蘭大學<br>食品科學系碩士班<br>98<br>Resistant starch (RS) refers to the portion of starch resist digestion by human body. There are four types of RS, the one formed by retrograding cooked starch are known as RS3. The technique of steam direct cooking involves pumping starch slurry through an orifice where it is mixed with steam at high temperature and pressure. Steam passing through the cooker formed intense turbulence, it not only heated starch slurry rapidly but also led to mechanical shearing of starch causing the structure damage. The goal of this study is to investigate the feasibility
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18

Wang, Cheng-Ye, and 王成業. "Effect of steam jet cooking and enzymatic debranching on physical properties and in vitro digestion of waxy starch and flour." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/3n75vm.

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碩士<br>國立宜蘭大學<br>食品科學系碩士班<br>102<br>The raw materials for preparation of resistant starch were mostly from high amylose cereal starches or legume starches. Waxy starches after treated with enzymes produce short chain amylose and also promote the formation of resistant starch. To prepare resistant starch, the raw materials need to be gelatinized firstly. Steam jet cooking with high temperature and high shear force can break starch granule and in favor to form resistant starch after retrogradation. Therefore, the objective of this study is to investigate the effect of steam jet cooking integrated
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19

Hong, Ching-Kun, and 洪敬焜. "Theoretical Analysis and Experimental Investigation on the Steam Jet Type Vacuum Pump used in the Secondary Refinery Process of Liquid Steel." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/25787595814640128801.

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碩士<br>國立中興大學<br>機械工程學系所<br>100<br>Steel Industry is the mother of heavy industry and It is also an energy-consuming intensive industry. A vacuum refining furnace consumes more than one third of a whole steelworks&apos;&apos; energy. Therefore, "How to save the energy of a vacuum refining furnace?" and "How to reduce energy consumption in a furnace?" have become important issues for all steelworks. In this article, we analyze and research by fluid dynamics equations and the experimental data measuring from a steam ejector. The steam ejector include a primary nozzle,a converging part,a mixing ch
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20

Seidel, Tobias. "Experimentelle Untersuchung der Thermofluiddynamik bei der Kontaktkondensation von Dampf an unterkühlter Flüssigkeit in einem weiten Druckbereich." 2018. https://tud.qucosa.de/id/qucosa%3A36875.

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Verlässliche Vorhersagen zum Verlauf von Störfallszenarien in Reaktorsystemen sind mit CFD-Modellen möglich, wenn diese anhand von Experimenten entwickelt und validiert sind. Motiviert durch die Vorgänge, die bei einem Thermoshock-Szenario unter Druck im Primärkreis eines Druckwasserreaktors entstehen, wurden im Rahmen dieser Arbeit Experimente zur Direktkontaktkondensation von Dampf an unterkühltem Wasser bei hohen Drücken untersucht. Der beschriebene Versuchsaufbau erlaubt es, in einer Anlage, die drei Phänomene geschichtete Strömung, Strahl und Blasenmitriss zu untersuchen. Eine umfassende
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21

Κωστενίδου, Ευαγγελία. "Usage of aerosol mass spectrometry for the measurement of the physical and chemical properties of the atmospheric nanoparticles." Thesis, 2010. http://nemertes.lis.upatras.gr/jspui/handle/10889/3343.

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The Aerosol Mass Spectroscopy (AMS) is a recently developed method that provides on-line measurements of the chemical composition, mass spectrum and mass distributions of the atmospheric aerosol. Using the AMS with a thermodenuder in smog chamber experiments of ozonolysis of α-pinene, β-pinene and limonene, the mass spectrum of the secondary organic aerosols (SOA) is deconvoluted in low, medium and high volatility mass spectra. The spectrum of the surrogate component with the lower volatility for α-pinene and β-pinene is quite similar to that of ambient oxygenated organic aerosol (OOA). This c
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