Relevant bibliographies by topics / Vapour expansion

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

Academic literature on the topic 'Vapour expansion'

Author: Grafiati
Published: 8 June 2024
Last updated: 31 July 2025

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Journal articles on the topic "Vapour expansion"

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Ahmed, Aram Mohammed, and Attila R. Imre. "The effect of recuperator on the efficiency of ORC and TFC with very dry working fluid." MATEC Web of Conferences 345 (2021): 00012. http://dx.doi.org/10.1051/matecconf/202134500012.

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Organic Rankine Cycles (ORC) and Trilateral Flash Cycles (TFC) are very similar power cycles; ideally, they have a reversible adiabatic (isentropic) compression, an isobaric heating, an isentropic expansion and an isobaric cooling. The main difference is that for ORC, the heating includes the full evaporation of the working fluid (prior expansion); therefore, the expansion starts in a saturated or dry vapour state, while for TFC, the heating terminates upon reaching the saturated liquid states. Therefore, for TFT, expansion liquid/vapour state (in bubbly liquid or in vapour dispersed with drop
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Miyauchi, Masato, Takumi Watanabe, Daiki Hoshi, and Tomonori Ohba. "Irreversible adsorption of acidic, basic, and water gas molecules on calcium-deficient hydroxyapatite." Dalton Transactions 48, no. 47 (2019): 17507–15. http://dx.doi.org/10.1039/c9dt03704g.

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Saini, D. K., A. Baruah, and G. Sachdeva. "Vapour compression system analysis undergoing expansion in an ejector." Journal of Physics: Conference Series 1240 (July 2019): 012131. http://dx.doi.org/10.1088/1742-6596/1240/1/012131.

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Mielczarek, Z. A., and T. J. Trojanowski. "Refrigerant vapour superheat in direct-expansion air cooling coils." International Communications in Heat and Mass Transfer 14, no. 3 (1987): 341–46. http://dx.doi.org/10.1016/0735-1933(87)90035-2.

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Guardone, Alberto, Piero Colonna, Emiliano Casati, and Enrico Rinaldi. "Non-classical gas dynamics of vapour mixtures." Journal of Fluid Mechanics 741 (February 13, 2014): 681–701. http://dx.doi.org/10.1017/jfm.2013.13.

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AbstractThe non-classical gas dynamics of binary mixtures of organic fluids in the vapour phase is investigated for the first time. A predictive thermodynamic model is used to compute the relevant mixture properties, including its critical point coordinates and the local value of the fundamental derivative of gas dynamics $\Gamma $. The considered model is the improved Peng–Robinson Stryjek–Vera cubic equation of state, complemented by the Wong–Sandler mixing rules. A finite thermodynamic region is found where the nonlinearity parameter $\Gamma $ is negative and therefore non-classical gas dyn
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Duplat, Jérôme. "Dynamics of expansion and collapse of explosive two-dimensional bubbles." Journal of Fluid Mechanics 859 (November 22, 2018): 677–90. http://dx.doi.org/10.1017/jfm.2018.804.

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An explosive gas mixture of hydrogen and oxygen is introduced in liquid water between two horizontal walls, forming a flat cylindrical bubble. Ignition and explosion of the bubble lead to a large depressurized cavity that finally implodes. We investigate the dynamics of the bubble collapse, which is qualitatively similar to the collapse of a spherical bubble. It exhibits a slightly weaker singularity than for spherical bubbles. We also analyse the explosion process. Starting with an initial radius $R_{0}$, the bubble reaches a maximal radius $R_{max}$ that depends on the gap thickness $h$ betw
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Arshed, G. M., S. Z. Shuja, B. S. Yilbas, and M. O. Budair. "Transient Helium Jet Expansion Into Stagnant Air in Relation to Laser Drilling." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 219, no. 7 (2005): 667–83. http://dx.doi.org/10.1243/095440605x31517.

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Transient helium jet expansion into a stagnant air environment is modelled to resemble the laser vapour ejection from the cavity during the drilling process. As the metal vapour properties are not known, helium is employed while the previously measured jet inlet velocity profiles are introduced in the simulations. A numerical scheme employing a control volume approach is used to discretize the governing equations of flow. The predictions are validated through a case study associated with an incompressible transient jet flow. It is found that the jet inlet profile influences considerably the se
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Gouin, Henri, and Pierre Seppecher. "Temperature profile in a liquid–vapour interface near the critical point." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 473, no. 2204 (2017): 20170229. http://dx.doi.org/10.1098/rspa.2017.0229.

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Thanks to an expansion with respect to densities of energy, mass and entropy, we discuss the concept of thermocapillary fluid for inhomogeneous fluids. The non-convex state law valid for homogeneous fluids is modified by adding terms taking account of the gradients of these densities. This seems more realistic than Cahn and Hilliard’s model which uses a density expansion in mass-density gradient only. Indeed, through liquid–vapour interfaces, realistic potentials in molecular theories show that entropy density and temperature do not vary with the mass density as it would do in bulk phases. In
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Sarkar, Jahar. "Exergy analysis of vortex tube expansion vapour compression refrigeration system." International Journal of Exergy 13, no. 4 (2013): 431. http://dx.doi.org/10.1504/ijex.2013.058101.

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Liu, Yefeng, and Jun Yu. "Review of vortex tube expansion in vapour compression refrigeration system." IOP Conference Series: Earth and Environmental Science 153 (May 2018): 032021. http://dx.doi.org/10.1088/1755-1315/153/3/032021.

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Dissertations / Theses on the topic "Vapour expansion"

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Poullain, Thomas. "Etude numérique et expérimentale de l’évaporation sous vide d’alliages métalliques : application à la refusion VAR de Zircaloy-4." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0189.

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La maitrise de la composition et de la ségrégation chimique est essentielle lors de l’élaboration de matériaux à forte valeur ajoutée, comme les alliages de zirconium à destination de l’industrie nucléaire. L’élaboration sous vide permet d’obtenir des lingots d’une très grande pureté mais elle présente aussi une contrainte supplémentaire concernant la maitrise de la teneur en éléments d’alliage volatiles. Les travaux présentés dans ce document visent à améliorer la prédiction de la cinétique d’appauvrissement en espèces métalliques volatiles lors de l’élaboration sous vide et en particulier lo
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Semeraro, Emanuele. "Experimental investigation on hydrodynamic phenomena associated with a sudden gas expansion in a narrow channel." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066516/document.

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La vaporisation rapide du sodium liquide surchauffé est supposée être à l’origine des arrêts automatiques pour réactivité négative du réacteur Phénix.Un dispositif expérimental a été mis en œuvre pour reproduire la détente d'un gaz pressurisé, repoussant un liquide dans un canal de section rectangulaire très allongée.L’interface qui sépare les deux fluides, initialement plate, ondule du fait d'instabilités de Rayleigh-Taylor dont le caractère 2D est garanti par le rapport d'aspect de la section du canal. L’aire interfaciale augmente d'un facteur 50.L’expansion du gaz peut être divisée en deux
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Hwang, Moonkyu. "Numerical modeling of the expansion phase of vapor explosions." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/16761.

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Souza, Rafaela Faciola Coelho de. "Estudo da influência da sucção na pressão de expansão de materiais argilosos com a técnica da transferência de vapor." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/18/18132/tde-19102015-105616/.

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Este trabalho apresenta a quantificação da expansão e suas características, principalmente a influência da sucção, em amostras de materiais sedimentares argilosos provenientes da Formação Corumbataí, aflorantes no interior do estado de São Paulo. Foram testadas amostras indeformadas, e amostras destorroadas e compactadas em diferentes umidades, em ensaios de pressão de expansão a volume constante por inundação, e também, com sucção controlada por meio da técnica da transferência de vapor. Foram ensaiadas, ainda, misturas compactadas desse material com bentonita em diferentes proporções, e mist
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Akraiam, Atea I. Bubaker. "Metal cluster production by condensation of metal vapour in supersonic expansions and by aggregation in droplets." Thesis, University of Leicester, 2015. http://hdl.handle.net/2381/31834.

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Metal clusters have been produced by condensation of metal atoms on or inside small argon clusters and by collision of supersonic atomic argon beams with atomic metal vapours. A key parameter in both processes is the metal atom particle density. For iron, metal particle densities above a thermal open crucible-type evaporator were determined using quartz-micro-balance mass flux measurements, revealing a point-source-like dependence on the distance from the crucible. For silver atoms the particle densities were also determined using scattering from small argon clusters. Formation and soft-deposi
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Suardin, Jaffee Arizon. "The application of expansion foam on liquefied natural gas (LNG) to suppress LNG vapor and LNG pool fire thermal radiation." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2906.

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SILVEIRA, HELVECIO C. K. da. "Analise de integridade estrutural de tubos de geradores de vapor deteriorados por corrosao sob tensao pelo primario na regiao de transicao de expansao junto ao espelho." reponame:Repositório Institucional do IPEN, 2002. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11035.

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Made available in DSpace on 2014-10-09T12:47:15Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:08:43Z (GMT). No. of bitstreams: 1 07971.pdf: 6425112 bytes, checksum: 2adaba2434371c9ca93a67fa4d783fb9 (MD5)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Patiño, Pérez Jorge. "Experimentación de nuevas configuraciones destinadas a la mejora del COP en ciclos de compresión de vapor que utilizan CO2 como refrigerante." Doctoral thesis, Universitat Jaume I, 2013. http://hdl.handle.net/10803/125529.

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La creciente demanda del confort humano está obligando a la comunidad científica a buscar nuevas técnicas que permitan aprovechar al máximo los recursos disponibles. Gran parte de esta demanda es consumida por sistemas de producción de frío basados en la compresión de vapor, por tanto, constituye uno de los sectores estratégicos a tener en cuenta para contribuir al desarrollo sostenible mediante la optimización energética de las instalaciones frigoríficas. Además de la búsqueda de soluciones eficientes desde un punto de vista energético, la comunidad científica dirige sus esfuerzos en la búsqu
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Gana, Inès. "Caractérisation physique et chimique des substances à activité thérapeutique : application aux études de profil de stabilité et de préformulation." Thesis, Sorbonne Paris Cité, 2015. http://www.theses.fr/2015USPCB164/document.

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Le développement d’un médicament pour une cible thérapeutique donnée passe par plusieurs étapes qui se résument en une étape de criblage, une phase préclinique et plusieurs phases cliniques. Ces étapes permettent de sélectionner une substance active et de démontrer son efficacité thérapeutique et sa sécurité toxicologique. Ces deux critères définissent la qualité du médicament qui, une fois démontrée, doit être garantie pendant toute sa durée de validité. La qualité est évaluée au moyen d’études de stabilité qui sont réalisées d’abord sur la matière première de la substance active au cours de
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Glos, Jan. "Modelování a řízení toků elektrické a tepelné energie v plně elektrických automobilech." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-433039.

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Systematické řízení tepelných a elektrických toků v plně elektrických automobilech se stává velmi důležitým, protože v těchto typech automobilů není k dispozici dostatek odpadního tepla pro vytápění kabiny. Aby v zimním období nedocházelo ke snížení dojezdu, je nutné použití technologií, které umožní snížení spotřeby energie nutné k vytápění kabiny (např. tepelné čerpadlo, zásobník tepla). Je také zapotřebí vytvořit řídicí algoritmy pro tato zařízení, aby byl zajištěn jejich optimální provoz. V letním období je nezbytné řídit tepelné toky v rámci elektromobilu tak, aby nedocházelo k nadměrnému
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Books on the topic "Vapour expansion"

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American Society of Mechanical Engineers., ed. Cylinder proportions for the compound engines determined by their free expansion losses. s.n., 1986.

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Center, Langley Research, ed. Chemical vapor deposition fluid flow simulation modelling tool. National Aeronautics and Space Administration, Langley Research Center, 1992.

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Buchetti, Jacques. Machines a Vapeur Actuelles, Supplément, Machines Simples: Compound a Triple Expansion ... Creative Media Partners, LLC, 2018.

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Book chapters on the topic "Vapour expansion"

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Das, K. S., and S. K. Wilson. "The Unsteady Expansion and Contraction of a Two-Dimensional Vapour Bubble Confined Between Superheated or Subcooled Plates." In Progress in Industrial Mathematics at ECMI 2004. Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/3-540-28073-1_72.

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Zauner, E., and G. E. A. Meier. "Phase Changes of a Large-Heat-Capacity Fluid in Transcritical Expansion Flows." In Adiabatic Waves in Liquid-Vapor Systems. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-83587-2_10.

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Peters, F., and B. Paikert. "Growth of n-Propanol Droplets in Argon Studied by Means of Shock Tube Expansion-Compression Process." In Adiabatic Waves in Liquid-Vapor Systems. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-83587-2_19.

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Gspann, J. "Large clusters of cesium from pure vapor expansions." In Small Particles and Inorganic Clusters. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76178-2_210.

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Vostrikov, A. A., and D. Yu Dubov. "Cluster generation in expansions of pure water vapour and of mixtures with carbon dioxide." In Small Particles and Inorganic Clusters. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76178-2_212.

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Pisano, Antonio. "Physics in a Vaporizer: Saturated Vapor Pressure, Heat of Vaporization, and Thermal Expansion." In Physics for Anesthesiologists. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57330-4_12.

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Pruett, J. G., H. Windischmann, M. L. Nicholas, and P. S. Lampard. "Mass and Temperature Measurement in Pure Vapor Expansion of Metals and Semi-Metals." In Physics and Chemistry of Small Clusters. Springer US, 1987. http://dx.doi.org/10.1007/978-1-4757-0357-3_17.

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Pisano, Antonio. "Physics in a Vaporizer: Saturated Vapor Pressure, Heat of Vaporization, and Thermal Expansion." In Physics for Anesthesiologists and Intensivists. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72047-6_15.

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van Heule, Xander, Tasos Skiadopoulos, Dimitris Manolakos, Michel De Paepe, and Steven Lecompte. "Optimization of a Partially Evaporating Organic Rankine Cycle with thermal non-equilibrium expansion." In Proceedings of the 7th International Seminar on ORC Power System (ORC 2023), 2024th ed. Editorial Universidad de Sevilla, 2024. http://dx.doi.org/10.12795/9788447227457_28.

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The Trilateral Flash Cycle (TFC) is an alternative to the Organic Rankine Cycle (ORC). The TFC have been shown to have greater exergy efficiencies compared to the ORC in low-grade heat-to-power conversion. This is a result of the more efficient heat transfer from the heat carrier to the working fluid, even though the TFC has inherently a lower thermal efficiency. However, these results are based on cycle modeling assuming equilibrium conditions, but the actual two-phase expansion process is a nonequilibrium process. Thermal non-equilibrium between vapour and liquid occurs during the evaporatio
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Ogrodniczak, Pawel, Abdulnaser Sayma, and Martin T. White. "Pressure profile optimisation of a nozzle for wet-to-dry expansion." In Proceedings of the 7th International Seminar on ORC Power System (ORC 2023), 2024th ed. Editorial Universidad de Sevilla, 2024. http://dx.doi.org/10.12795/9788447227457_48.

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Wet-to-dry expansion within the nozzle guide vane of an ORC turbine has been proposed as a means to improve the power output of ORC systems for waste-heat recovery (&lt; 250 °C). However, given the rapid fluid acceleration in the stator, the phases can develop significant velocity and temperature disparity due to the density difference and finite rate of interphase heat transfer. Since these factors can significantly affect the phase-change process, wet-to-dry nozzle design techniques must account for non-equilibrium effects. The first part of this paper aims to further validate a previously d
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Conference papers on the topic "Vapour expansion"

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Bergero, Stefano, Anna Chiari, and Enrico Nannei. "Vapour Compression and Liquid Desiccant Hybrid System for Air Conditioning." In ASME 8th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2006. http://dx.doi.org/10.1115/esda2006-95541.

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The present study examines the performance of a hybrid air-conditioning system in which a vapour compression inverse cycle is integrated with an air dehumidification system working with hygroscopic solution and hydrophobic membrane. This approach may prove to be a valid alternative to the traditional summertime air-conditioning system, which involves cooling the air to below its dew point and subsequently reheating it. The system examined simultaneously cools and dehumidifies the air in an air-LiCl solution membrane vapour exchanger before it enters the conditioned environment. The LiCl soluti
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Stosic, Nikola, and Ian K. Smith. "Utilization of Expansion Work in Transcritical CO2 Heat Pumps in Combined Heating and Cooling." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-68722.

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The use of CO2 as a refrigerant in transcritical vapour compression cycles has significant advantages, for systems which require simultaneous heating and cooling at approximately equal rates. However, then need for a compressor, to operate across high pressure differences, and the large throttle losses associated with these pressure differences have limited its use. This paper describes a study carried out to evaluate the efficiency gains and cost benefits possible from such a system when a twin screw machine is used to both compress and expand the working fluid in a single unit. It also shows
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Read, Matthew G., Ian K. Smith, and Nikola Stosic. "Optimisation of Power Plant Operating on Waste Heat of Gas IC Engine Driven Power Generator." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66550.

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This paper describes the results of computation analysis aimed at assessing the potential benefits of several thermodynamic cycles for the recovery of waste heat from gas IC engines. This is achieved by modelling the plant and expander processes which provides the general specification of the plant in terms of key design parameters. Simultaneously, the thermodynamic performance of each cycle is calculated in terms of flow rate, power and efficiency. Detailed component models allow a rigorous investigation of the design and performance of Organic Rankine Cycle and Wet steam Cycle systems for th
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Parsons-Karavassilis, D., K. Dowling, P. M. W. French, and J. R. Taylor. "Laser ablation using an ultrafast all-solid-state Cr:LiSAF regenerative laser amplifier system." In The European Conference on Lasers and Electro-Optics. Optica Publishing Group, 1998. http://dx.doi.org/10.1364/cleo_europe.1998.cthh76.

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Conventional continuous wave and long pulse (nanosecond) laser ablation is used in many fields, such as materials processing and medicine [1]. In these regimes the dominant process involved is the heating of the target material through the liquid phase to the vapour phase, resulting in expansion and expulsion of the desired target material. This is accompanied by heating and collateral damage to the surrounding area, the degree of which is determined by the rate of energy absorption and the rate of energy loss through thermal conduction in the material. This collateral damage is often detrimen
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Seaton, Michael, Vlad Sokhan, and Ilian Todorov. "Development of Enhanced Interactions for Highly Coarse-Grained Materials." In ASME 2024 7th International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/mnhmt2024-132397.

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Abstract Modelling micro- and mesoscale transport of soft condensed matter hinges upon its representation, including any complex phenomena, at appropriate length and time scales, especially when using larger-than-atomistic techniques such as dissipative particle dynamics (DPD). Simple repulsive pairwise interactions typically used in DPD calculations can capture some complexity, but certain thermodynamic behaviours such as single-component phase coexistence and transitions are normally unavailable. By extending the commonly-used DPD interactions to include attraction and additional control on
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Spinelli, A., V. Dossena, P. Gaetani, C. Osnaghi, and D. Colombo. "Design of a Test Rig for Organic Vapours." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-22959.

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A blow-down wind tunnel for real gas applications has been designed to characterize an organic vapour stream by independent measurements of pressure, temperature and velocity. Experiments are meant to investigate flow fields representative of expansions taking place in Organic Rankine Cycles (ORC) turbines. Strong real gas effects, high Mach numbers and approximations affecting the calculated properties of novel compounds, make the knowledge of ORC turbine blade passage flow field still rather limited. A significant enhancement of turbines efficiency is expected from detailed investigations on
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Zanforlin, S., and R. Gentili. "Stable Fuel Confinement in Stratified Charge GDI Engines." In ASME 2004 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/icef2004-0919.

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Direct fuel injection combined with charge stratification represents a must for two-stroke S.I. engines, since it prevents fuel loss from the exhaust port and incomplete combustion or misfire at light loads. The most difficult aims are keeping stable stratification when engine operating conditions change and, at very light loads, avoiding excessive dilution and spreading of fuel vapour in consequence of burned gas expansion. Two new-concept engine designs are proposed in this paper. In both cases shapes of piston and head, together with scavenging-duct orientation have been optimised to obtain
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Bergero, Stefano, and Anna Chiari. "Energy Saving in a Heat Pump Air-Conditioning System Using Liquid Desiccant and Membrane Contactors." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-63516.

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It has been demonstrated in the literature that significant energy savings can be achieved in air-conditioning through the use of so-called hybrid systems, in which a chemical dehumidification system is combined with a vapour-compression heat pump. The advantage of such systems lies in the fact that the heat pump can operate at a higher evaporation temperature than that of a traditional system in which dehumidification is achieved through condensation, thereby achieving higher coefficients of performance. The hybrid system described in the present paper operates as follows: the air supplied to
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Manente, Giovanni, Ahtasham Rahim, and Antonio Ficarella. "Methanol-Fired Allam Cycle: Combining Oxy-Fuel Power Cycles With Synthetic E-Fuels." In ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/gt2024-128672.

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Abstract Direct-fired supercritical CO2 cycles combine oxy-combustion with supercritical CO2 to achieve high thermal efficiencies in power plants with carbon capture. The Allam cycle is a transcritical CO2 oxy-fuel cycle, named after its inventor. It achieves the highest thermal efficiencies compared to other oxy-fuel cycles, with a relatively simple configuration. Currently, most of the research and the commercial development of this cycle focuses on the use of natural gas or coal-derived syngas as a fuel, and oxygen obtained in cryogenic air separation units. Only recently, a few studies hav
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Roumeliotis, I., and K. Mathioudakis. "Moisture Condensation Effect on Turbine Performance Tests." In ASME Turbo Expo 2004: Power for Land, Sea, and Air. ASMEDC, 2004. http://dx.doi.org/10.1115/gt2004-53839.

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Water is always present in the atmospheric air in the form of vapour, affecting the operation of turbomachinery components in gas turbine engines. Due to water presence in the working medium, condensation may occur, which can influence the thermal performance of the component and alter the measurements taken for calculations. This can lead to erroneous evaluation of component performance parameters during development performance tests. Procedures to detect condensation and if possible to correct the measurements during engine or component test should be used to avoid such situations. A method
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