Relevant bibliographies by topics / Mass transfer-solution modelling

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

Academic literature on the topic 'Mass transfer-solution modelling'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 February 2022

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Journal articles on the topic "Mass transfer-solution modelling"

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Simal, Susana, J. A. Cárcel, J. Bon, Á. Castell-Palou, and Carmen Rosselló. "Mass Transfer Modelling in an Acoustic-Assisted Osmotic Process." Defect and Diffusion Forum 258-260 (October 2006): 600–609. http://dx.doi.org/10.4028/www.scientific.net/ddf.258-260.600.

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Ultrasounds are mechanical waves that produce different effects when travelling through a medium, some related to mass transfer (i.e. microstirring at the interface, the so called "sponge effect" and cavitations). Thus, ultrasound appears to be a way to reduce both the internal and external resistances in osmotic food drying processes. In this study, the influence of the ultrasounds on water and solute transports during osmotic processes of drying is evaluated. Two different systems have been studied, apple slabs immersed in 30ºBrix sucrose solution, and pork loin slabs in sodium chloride satu
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Ndiaye, L., Mb Ndiaye, A. Sy, and D. Seck. "Pollution Transfer as Optimal Mass Transport Problem." Journal of Mathematics Research 8, no. 6 (2016): 58. http://dx.doi.org/10.5539/jmr.v8n6p58.

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In this paper, we use mass transportation theory to study pollution transfer in porous media. We show the existence of a $L^2-$regular vector field defined by a $W^{1, 1}-$ optimal transport map. A sufficient condition for solvability of our model, is given by a (non homogeneous) transport equation with a source defined by a measure. The mathematical framework used, allows us to show in some specifical cases, existence of solution for a nonlinear PDE deriving from the modelling. And we end by numerical simulations.
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Wendler, B., B. Goers, and G. Wozny. "Regeneration of process water containing surfactants by nanofiltration - investigation and modelling of mass transport." Water Science and Technology 46, no. 4-5 (2002): 287–92. http://dx.doi.org/10.2166/wst.2002.0607.

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The mechanisms in nanofiltration of aqueous solutions of different anionic surfactants and of mixture solutions of surfactants and NaCl are investigated. The surfactants used are sodium dodecylether sulfate, sodium dodecyl sulfate and sodium alkyl benzene sulfonate. High retentions in the range of 95% up to 99.9% referring to the feed concentration are found to depend on the solvent flux. If additional salt is present in the solution, the permeate quality is deteriorating because of lower solvent flux and of mass transfer due to the electrical potential. The experimental results show that conv
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Aprile, Marcello, and Mario Motta. "Modelling of a desiccant rotor by using the collocation method." International Journal of Numerical Methods for Heat & Fluid Flow 24, no. 1 (2013): 201–20. http://dx.doi.org/10.1108/hff-02-2012-0035.

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Purpose – This article aims to develop a fast numerical method for solving the one-dimensional heat and mass transfer problem within a desiccant rotor. Design/methodology/approach – The collocation method is used for discretizing the axial dimension and reducing the number of dependent variables. The resulting system of equation is then solved through backward differentiation formulas. Findings – The numerical results obtained here focus on verifying the accuracy and the computation time of the proposed method with respect to the finite difference method. The proposed numerical solution method
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Álvarez, María E., and Mahmoud Bourouis. "Modelling of Coupled Heat and Mass Transfer in a Water-Cooled Falling-Film Absorber Working with an Aqueous Alkaline Nitrate Solution." Energies 14, no. 7 (2021): 1804. http://dx.doi.org/10.3390/en14071804.

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A theoretical model was developed to investigate a falling-film absorber on horizontal tubes with an aqueous alkaline nitrate solution as working fluid. The absorbent, composed of an aqueous solution of nitrates (Li, K, Na) in salt mass percentages of 53%, 28%, and 19% respectively, offers favourable thermal stability, corrosiveness, and heat and mass transfer conditions which can be appropriate for absorption cooling cycles driven by high-temperature heat sources. The mathematical model developed characterises the heat and mass transfer processes and the flow regime effect (droplet-formation,
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See, Tan Lian, Tay Wee Horng, Kok Keong Lau, and Mohd Shariff Azmi. "Modelling of High Pressure, High Concentration Carbon Dioxide Capture in Absorption Column." Applied Mechanics and Materials 773-774 (July 2015): 1138–42. http://dx.doi.org/10.4028/www.scientific.net/amm.773-774.1138.

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With the depletion of low carbon dioxide (CO2) content natural gas reserves, there is a pressing need to explore the vastly undeveloped high CO2 content natural gas reserves and reduce the release of greenhouse gas CO2 into environment. Our previous investigation on the absorption performance of CO2 at high concentration level of 50% from mixture of CO2-natural gas stream for 20wt% monoethanolamine (MEA) solution in countercurrent packed column indicated efficient removal at high pressure condition. In this present work, a combination mass transfer, chemical reaction of MEA as well as mass con
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Moreira, Ramón, Francisco Chenlo, N. Vallejo, and Lionel Gerbet. "Mass Transfer Analysis during Osmotic Dehydration of Eggplant Using Binary Solutions of Sucrose and Sodium Chloride." Defect and Diffusion Forum 273-276 (February 2008): 413–18. http://dx.doi.org/10.4028/www.scientific.net/ddf.273-276.413.

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Osmotic dehydration of eggplant slices in sucrose and sodium chloride solutions at different solution concentrations, stirring levels and time of process is studied. Water loss and solids gain kinetics were experimentally determined and modelled using a diffusional model and equilibrium values were predicted by means of Azuara model. Modelling was satisfactory and involved effective coefficients of diffusion useful to quantify the different mass transfer fluxes.
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Conner, J. M., and S. E. Elghobashi. "Numerical Solution of Laminar Flow Past a Sphere With Surface Mass Transfer." Numerical Heat Transfer, Part B: Fundamentals 12, no. 1 (1987): 57–82. http://dx.doi.org/10.1080/10407798708552567.

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Hayat, Tasawar, Saima Noreen, and Muhammad Qasim. "Influence of Heat and Mass Transfer on the Peristaltic Transport of a Phan-Thien–Tanner Fluid." Zeitschrift für Naturforschung A 68, no. 12 (2013): 751–58. http://dx.doi.org/10.5560/zna.2013-0068.

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In this paper, we discuss the effects of heat and mass transfer on the peristaltic flow in the presence of an induced magnetic field. Constitutive equations of a Phan-Thien-Tanner fluid are utilized in the mathematical description. Mathematical modelling is based upon the laws of mass, linear momentum, energy, and concentration. Relevant equations are simplified using long wavelength and low Reynolds number assumptions. A series solution is presented for small Weissenberg number. Variations of emerging parameters embedded in the flow system are discussed.
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Sandu, Vlad-Cristian, Ana-Maria Cormos, and Calin-Cristian Cormos. "Fuel Reactor CFD Multiscale Modelling in Syngas-Based Chemical Looping Combustion with Ilmenite." Energies 14, no. 19 (2021): 6059. http://dx.doi.org/10.3390/en14196059.

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As global power generation is currently relying on fossil fuel-based power plants, more anthropogenic CO2 is being released into the atmosphere. During the transition period to alternative energy sources, carbon capture and storage seems to be a promising solution. Chemical-looping combustion (CLC) is an energy conversion technology designed for combustion of fossil fuel with advantageous carbon capture capabilities. In this work, a 1D computational fluid dynamics (CFD) multiscale model was developed to study the reduction step in a syngas-based CLC system and was validated using literature da
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Dissertations / Theses on the topic "Mass transfer-solution modelling"

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Picado, Apolinar. "An Analytical Solution Applied to Heat and Mass Transfer in a Vibrated Fluidised Bed Dryer." Licentiate thesis, KTH, Teknisk strömningslära, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-34241.

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A mathematical model for the drying of particulate solids in a continuous vibrated fluidised bed dryer was developed and applied to the drying of grain wetted with a single liquid and porous particles containing multicomponent liquid mixtures. Simple equipment and material models were applied to describe the process. In the plug-flow equipment model, a thin layer of particles moving forward and well mixed in the direction of the gas flow was regarded; thus, only the longitudinal changes of particle moisture content and composition as well as temperature along the dryer were considered. Concern
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Book chapters on the topic "Mass transfer-solution modelling"

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Joardder, Mohammad U. H., Washim Akram, and Azharul Karim. "Numerical Model Formulation and Solution Approaches." In Heat and Mass Transfer Modelling During Drying. CRC Press, 2021. http://dx.doi.org/10.1201/9780429461040-4.

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Wu), Honda Wu (Hung-Ta, and Tsair-Wang Chung. "Discussions of Effects of Surface Tension on Water Vapor Absorbed by Triethylene Glycol Solution Films." In Heat and Mass Transfer - Advances in Modelling and Experimental Study for Industrial Applications. InTech, 2018. http://dx.doi.org/10.5772/intechopen.76148.

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Conference papers on the topic "Mass transfer-solution modelling"

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Maier, Christine, Karen S. Schmid, Mohamed Ahmed, and Sebastian Geiger. "Multi-Rate Mass-Transfer Dual-Porosity Modelling Using the Exact Analytical Solution for Spontaneous Imbibition." In EAGE Annual Conference & Exhibition incorporating SPE Europec. Society of Petroleum Engineers, 2013. http://dx.doi.org/10.2118/164926-ms.

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Maier, C., K. S. Schmid, M. Ahmed Elfeel, and S. Geiger. "Multi-rate Mass-transfer Dual-porosity Modelling Using the Exact Analytical Solution for Spontaneous Imbibition - (SPE-164926)." In 75th EAGE Conference and Exhibition incorporating SPE EUROPEC 2013. EAGE Publications BV, 2013. http://dx.doi.org/10.3997/2214-4609.20130869.

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Volpi, Andrea, and Eleonora Bottani. "A simulation tool for mass transfer inside compressed air vessel for water networks pressurisation." In The 19th International Conference on Modelling and Applied Simulation. CAL-TEK srl, 2019. http://dx.doi.org/10.46354/i3m.2019.mas.015.

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Feeding a water distribution network with the correct pressure is a fundamental requirement for its proper operation; to this end, a simple and reliable solution commonly adopted in small and medium industrial plants is the adoption of a pressure vessel. For small systems, a membrane seals the system water from the gas compartment, anyway, as the size of the vessel increases, the adoption of sealing diaphragm or bladder is no longer feasible, and thus there is a direct contact between air and water. The high pressure of the vessel, combined with the cyclic loading and unloading phases, which r
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Sokolov, K. Y., A. G. Tumanovskiy, M. N. Gutnik, A. V. Sudarev, Y. I. Zakharov, and E. D. Winogradov. "Mathematical Modelling of an Annular Gas Turbine Combustor." In ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/93-gt-339.

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Mathematical model for description of axisymmetric swirled flow with diffusion combustion is based on numerical solution of Reynolds equation with k-W modell of turbulence. The results of numerical and experimental investigations of local and general characteristicse of flow, heat and mass transfer, combustion and NOx formation in annular combustor with opposite swirled air jets are presented. Satisfactory agreement between calculations and experiments is obtained. The dependences of combustor characteristics vs geometric and operational parameters are generalized.
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Fackrell, John E., Richard J. Tabberer, John B. Young, and Ian R. Fantom. "Modelling Alkali Salt Vapour Deposition in the British Coal Topping Cycle System." In ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/94-gt-177.

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The British Coal Topping Cycle is a proposed advanced coal-fired power generation system in which gases derived from the coal and containing low levels of alkali vapours are passed to a gas turbine. The deposition of these vapours onto the turbine blades needs to be assessed because deposited alkali salts may accelerate corrosion and hence reduce blade lifetimes. A model for the thermochemical behaviour was derived by assuming frozen chemistry in the external and boundary layer flows, but equilibrium at the surface and within the deposit, including an allowance for non-ideal behaviour in the d
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Giuntini, Sabrina, Antonio Andreini, and Bruno Facchini. "Finite Element Transient Modelling for Aero-Thermo-Mechanical Analysis of Whole Gas Turbine Engine." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-91278.

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Abstract It is here proposed a numerical procedure aimed to perform transient aero-thermo-mechanical calculations of large power generation gas turbines. Due to the frequent startups and shutdowns that nowadays these engines encounter, procedures for multi-physics simulations have to take into account the complex coupled interactions related to inertial and thermal loads, and seal running clearances. In order to develop suitable secondary air system configurations, guarantee structural integrity and maintain actual clearances and temperature peaks in pre-established ranges, the overall complex
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Hee, Jee Loong, Kathy Simmons, Bruce Kakimpa, and David Hann. "Computationally Efficient Modelling of Oil Jet-Breakup and Film Formation for Bearing Chamber Applications." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-76172.

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In previously published experimental work completed at the Gas Turbine and Transmissions Research Centre (G2TRC), oil fed to an aeroengine location bearing via underrace feed was seen to shed from the cage, forming a film on static surfaces near the bearing and subsequently shedding into the bearing chamber. A high-fidelity computational model of the two-phase flow in an aeroengine bearing chamber must adequately reproduce such behaviour but there are significant challenges in modelling both the oil breakup after shedding and the subsequent film formation. It is very computationally costly to
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Tonini, Simona, and Gianpietro Elvio Cossali. "General Solution of Drop Evaporation Modelling in Non-Viscous Steady-State Gaseous Environment." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22637.

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The problem of steady-state mass transport from a spherical mono-component droplet immersed in gaseous environment is addressed to find a solution for the expected vaporisation rate under general ambient conditions. The continuity, momentum and energy equations are written on a radial coordinate system. The effect of thermal gradient in the vapour phase is taken into account, while the viscous and dissipation terms in the momentum and energy equations are neglected. The model yields a non-linear second order ODE that is numerically and analytically solved to calculate the steady-state vaporisa
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Mazzei, L., A. Picchi, A. Andreini, B. Facchini, and I. Vitale. "Unsteady CFD Investigation of Effusion Cooling Process in a Lean Burn Aero-Engine Combustor." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-56603.

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The use of lean burning flames stabilized by highly swirling flows represents the most effective technology to limit NOx emissions in modern aeroengine combustors. In these devices up to 70% of compressed air is admitted in the combustor through the injection system, which is usually designed to give strong swirling components to air flow. Complex fluidynamics is observed with large flow recirculations due to vortex breakdown and precessing vortex core, that may result in a not trivial interaction with liner cooling flows close to combustor walls. This interaction and its effects on the local
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Yang, Zhuo, Tariq Amin Khan, Wei Li, et al. "Thermal-Hydraulic Performance and Optimization of Tube Ellipticity in a Plate Fin-and-Tube Heat Exchanger." In ASME 2018 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/ipack2018-8448.

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The flow field inside the heat exchangers is associated with maximum heat transfer and minimum pressure drop. Designing a compact heat exchanger and employing various techniques to enhance its overall performance has been widely investigated and still an active research field. However, few researches deal with thermal optimization. The application of elliptic tube is an effective alternative to circular tube which can reduce the pressure drop significantly. In this study, numerical simulation and optimization of variable tube ellipticity is studied at low Reynolds numbers. The three-dimensiona
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