Academic literature on the topic 'Mass transfer – Mathematical models'
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Journal articles on the topic "Mass transfer – Mathematical models"
Dyachok, Vasyl, Roman Dyachok, and Nataliy Ilkiv. "Mathematical Model of Mass Transfer from Lamina of the Leaf into Extractant." Chemistry & Chemical Technology 9, no. 1 (March 15, 2015): 107–10. http://dx.doi.org/10.23939/chcht09.01.107.
Full textQuezada-García, S., G. Espinosa-Paredes, M. A. Polo-Labarrios, E. G. Espinosa-Martínez, and M. A. Escobedo-Izquierdo. "Green roof heat and mass transfer mathematical models: A review." Building and Environment 170 (March 2020): 106634. http://dx.doi.org/10.1016/j.buildenv.2019.106634.
Full textZhang, Tongwang, Bin Zhao, and Jinfu Wang. "Mathematical models for macro-scale mass transfer in airlift loop reactors." Chemical Engineering Journal 119, no. 1 (June 2006): 19–26. http://dx.doi.org/10.1016/j.cej.2006.03.005.
Full textFernàndez-Garcia, D., and X. Sanchez-Vila. "Mathematical equivalence between time-dependent single-rate and multirate mass transfer models." Water Resources Research 51, no. 5 (May 2015): 3166–80. http://dx.doi.org/10.1002/2014wr016348.
Full textKudinov, I. V., and V. A. Kudinov. "Mathematical Models For Meso- And Nano-Domain Heat, Mass, Pulse Transfer Processes." Journal of Physics: Conference Series 891 (November 10, 2017): 012351. http://dx.doi.org/10.1088/1742-6596/891/1/012351.
Full textAssis, Fernanda R., Rui M. S. C. Morais, and Alcina M. M. B. Morais. "Mass Transfer in Osmotic Dehydration of Food Products: Comparison Between Mathematical Models." Food Engineering Reviews 8, no. 2 (May 19, 2015): 116–33. http://dx.doi.org/10.1007/s12393-015-9123-1.
Full textPyatkov, S. G. "On Evolutionary Inverse Problems for Mathematical Models of Heat and Mass Transfer." Bulletin of the South Ural State University. Series "Mathematical Modelling, Programming and Computer Software" 14, no. 1 (2021): 5–25. http://dx.doi.org/10.14529/mmp210101.
Full textBlynskaya, E. V., S. V. Tishkov, K. V. Alekseyev, and S. V. Minaev. "Mathematical models of the process of submlimationand optimization of lyophilization modes." Russian Journal of Biotherapy 17, no. 3 (November 25, 2018): 20–28. http://dx.doi.org/10.17650/1726-9784-2018-17-3-20-28.
Full textHernandez-Morales, B., and A. Mitchell. "Review of mathematical models of fluid flow, heat transfer, and mass transfer in electroslag remelting process." Ironmaking & Steelmaking 26, no. 6 (December 1999): 423–38. http://dx.doi.org/10.1179/030192399677275.
Full textGamayunov, N. I., R. A. Ispiryan, and A. V. Klinger. "Construction and identification of mathematical models of heat transfer and mass transfer in capillary-porous bodies." Journal of Engineering Physics 50, no. 2 (February 1986): 224–27. http://dx.doi.org/10.1007/bf00870093.
Full textDissertations / Theses on the topic "Mass transfer – Mathematical models"
Subramaniam, Vishwanath. "Computational analysis of binary-fluid heat and mass transfer in falling films and droplets." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26485.
Full textCommittee Chair: Garimella, Srinivas; Committee Member: Fuller, Tom; Committee Member: Jeter, Sheldon; Committee Member: Lieuwen, Tim; Committee Member: Wepfer, William. Part of the SMARTech Electronic Thesis and Dissertation Collection.
Silva, Luiz Paulo Sales 1987. "Modelagem matemática da transferência de massa no processo de extração supercrítica de pimenta vermelha." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/254628.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos
Made available in DSpace on 2018-08-21T22:31:55Z (GMT). No. of bitstreams: 1 Silva_LuizPauloSales_M.pdf: 5215588 bytes, checksum: cb283a60a47e8463b3ab4b9e87526e92 (MD5) Previous issue date: 2013
Resumo: Este projeto utilizou a tecnologia supercrítica no processo de extração, usando o dióxido de carbono como solvente. Esta tecnologia apresenta-se como uma alternativa para processos que usam solventes orgânicos tóxicos, além de respeitar os princípios da química verde, pautada nos conceitos de desenvolvimento sustentável. Com o objetivo de compreender melhor todos os mecanismos fenomenológicos envolvidos neste processo, bem como poder controlá-los visando à sua otimização, a modelagem matemática é uma opção bastante atrativa. As substâncias capsaicinoides, presente em grandes quantidades em várias espécies de pimenta, responsáveis pela sensação pungente e que, no entanto, possuem comprovadas ações benéficas ao organismo, foram definidas como substâncias alvo. Desta forma, para os estudos dos fenômenos de transferência de massa, três espécies de pimentas, Capsicum frutescens, Capsicum chinense, Capsicum boccatum, foram analisadas quanto aos seus teores de capsaicinoides. A espécie Capsicum frutescens apresentou o maior concentração destas substâncias e foi escolhida como a matéria-prima para etapas posteriores. Um planejamento experimental de extração supercrítica desta espécie de pimenta foi realizado variando a pressão e a temperatura. A partir destas extrações foi observado que a condição de extração de 15MPa e 313 K apresentou a melhor combinação entre rendimento e concentração de capsaicina. Cinéticas de extração realizadas nesta condição, porém variando a vazão de solvente, o diâmetro de partícula e o volume de extração, foram estudadas. Maiores taxas de extração foram obtidas nas maiores vazões e nos menores diâmetros de partícula e volume de leito de extração devido à maior importância do fenômeno convectivo. O modelo de partículas intactas e rompidas de Sovová (1994) foi usado para ajustar os dados experimentais das curvas e obter os parâmetros do modelo. Três tipos de modelagem foram realizadas: ajuste de cada curva individualmente; ajuste simultâneo gerando um conjunto de parâmetros para os pares das duplicatas; ajuste múltiplo que ajustou um valor único do parâmetro XK para cada conjunto de curvas com o mesmo diâmetro de partícula. Com os ajustes foi possível calcular o coeficiente convectivo de transferência de massa de cada condição e o respectivo valor do número de Sherwood experimental. Com os dados experimentais de cada condição foram calculados os números adimensionais de Reynolds e Schimdt. Com estes novos conjuntos de dados de números adimensionais foram realizadas novas modelagens matemáticas e, através destas, propostas novas correlações. Estas novas equações foram baseadas tanto na existência única da convecção forçada quanto na existência, mesmo que pouco significativa, da convecção natural. A eficácia destes novos modelos foi avaliada com a comparação dos coeficientes de transferência de massa convectivos calculados com aqueles ajustados das curvas experimentais, apresentando, em geral, boa similaridade. Por fim, uma extração em escala piloto realizada deu indícios, através dos resultados calculados das novas correlações, que a convecção natural nestas escalas não pode ser desprezada
Abstract: This workt used the supercritical technology in the process of extraction, using carbon dioxide as solvent. This technology is based on concepts of sustainable development and respects the principals of green chemistry. It appears as an alternative to processes that use toxic organic solvents. Mathematical modeling is an interesting tool to understand better all phenomenological mechanisms involved in this process and to be able to control and optimize them. Capsaicinoids, which are responsible for the pungent sensation caused by peppers, have well-known beneficial properties for human organism. These substances are present in large quantities in several pepper species. Capsaicinoids were chosen as target substances for the study of mass transfer phenomena. Capsaicinoid contents were analyzed for three pepper species: Capsicum frutescens, Capsicum chinense, Capsicum boccatum. The species Capsicum frutescens showed higher concentration of these substances and was chosen as raw material for further steps. An experimental design of supercritical extraction from this pepper species was carried out varying pressure and temperature. These extractions showed that the extraction condition of 15 MPa and 313 K gave the best combination of yield and capsaicin concentration. Therefore, extraction kinetics was studied under this condition, varying solvent flow rate, particle diameter and extraction bed volume. The highest extraction rates were obtained for high solvent flow rates, low particle diameters and low extraction bed volume. This can be explained by the greater importance of the convective phenomenon under these conditions. The Sovová¿s model (1994) for intact and broken particles was used to fit experimental data to curves and obtain model parameters. Three types of mathematical modeling were established: (1) fitting of each individual curve, (2) simultaneous fitting creating a set of parameters for pairs of duplicates, (3) multiple fitting that adjsuts a single value for the parameter XK for each set of curves with the same particle diameter. These fits allowed calculating the convective mass transfer coefficient for each condition and the respective values of the experimental Sherwood number. Experimental data was used to calculate dimensionless numbers of Reynolds and Schmidt for of each condition. Other mathematical modelings were performed using these new data sets of dimensionless numbers, which allowed proposing new correlations. These new equations were based on the existence of forced and free convection, even though the importance of the second phenomenon was considered small. The efficiency of these new models was assessed with a comparison of calculated convective mass transfer coefficients to those fitted from experimental curves. A good coherence was found between both. Finally, a pilot scale extraction was performed and the results obtained using the proposed correlations suggested that free convection cannot be neglected at such scales
Mestrado
Engenharia de Alimentos
Mestra em Engenharia de Alimentos
Fimbres, Weihs Gustavo Adolfo UNESCO Centre for Membrane Science & Technology Faculty of Engineering UNSW. "Numerical simulation studies of mass transfer under steady and unsteady fluid flow in two- and three-dimensional spacer-filled channels." Publisher:University of New South Wales. UNESCO Centre for Membrane Science & Technology, 2008. http://handle.unsw.edu.au/1959.4/41453.
Full textMitra, Biswajit. "Supercritical gas cooling and condensation of refrigerant R410A at near-critical pressures." Diss., Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-06142005-232427/.
Full textGarimella, Srinivas, Committee Chair ; Ghiaasiaan, S. Mostafa, Committee Member ; Graham, Samuel, Committee Member ; Breedveld, Victor, Committee Member ; Fuller,Tom, Committee Member.
Raymond, Alexander William. "Investigation of microparticle to system level phenomena in thermally activated adsorption heat pumps." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34682.
Full textCraft, Kathleen L. "Boundary layer models of hydrothermal circulation on Earth and Mars." Thesis, Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26574.
Full textNganhou, Jean. "Etude des transferts de chaleur et de matiere en convection forcee dans une operation de sechage en lit epais de produits agricoles tropicaux : application aux feves de cacao." Poitiers, 1987. http://www.theses.fr/1987POIT2268.
Full textGrouhel, Marie-Christine. "Evolution de l'etat hygrothermique d'un toit experimental de tuiles de terre cuite durant son sechage." Paris 6, 1988. http://www.theses.fr/1988PA066273.
Full textGans, Luiz Henrique Accorsi. "Modelo de predição para o crescimento de hidratos em paredes de tubulações." Universidade Tecnológica Federal do Paraná, 2016. http://repositorio.utfpr.edu.br/jspui/handle/1/1884.
Full textNa indústria do petróleo existe um grande interesse no entendimento dos fenômenos de formação de hidratos já que eles podem danificar a tubulação, colocar vidas em risco e diminuir a produção de óleo e gás pelo bloqueio da linha. Ou seja, conhecer os fenômenos associados à formação de hidratos reflete diretamente no custo operacional da indústria petrolífera. Diversos grupos de pesquisa já propuseram diferentes modelos para predizer o crescimento de hidratos na interface líquido-gás e na parede das tubulações de produção de petróleo em águas profundas. Entretanto, os modelos baseados unicamente na transferência de calor não foram adequados para explicar os dados experimentais pois os consumos de água e gás não eram considerados. Assim, esta dissertação tem como objetivo desenvolver um modelo, matemático e numérico, que permita prever o crescimento dos hidratos de metano e de dióxido de carbono na parede da tubulação por meio das equações de conservação de massa e energia de forma acoplada. Como nenhuma solução analítica é possível, foi utilizado o método numérico dos volumes finitos com o esquema totalmente implícito. A verificação da implementação computacional foi realizada utilizando um modelo de dissociação de hidratos existente na literatura. A partir dos resultados numéricos, foi avaliado como as condições termodinâmicas, a porosidade e a condutividade térmica do hidrato, o diâmetro da tubulação e a disponibilidade de gás influenciam na taxa de crescimento de hidrato. Como principais resultados, verificou-se que a porosidade e a disponibilidade de gás representaram grande importância no cálculo da taxa de crescimento da camada de hidrato.
The study of the clathrate-hydrate formation processes in pipelines is very important to the oil and gas industry because these structures can stop production and it represents a safety risk due to the pressure build-up in the pipelines. Several research groups have proposed different models to predict how a hydrate film grows. However, the models based only on heat transfer could not explain satisfactorily the experimental data because the water and gas consumption were disregarded. So, in order to predict the hydrate growth phenomenon in tube wall, the current work presents a mathematical and numerical model for the coupled mass and energy balance problem for CO2 and CH4 hydrates. As a result of the coupling equations, no analytical solution is possible. So, a computational algorithm has been proposed based on the finite volume method and fully implicit scheme. The verification of the code was conducted through a dissociation model which has been presented by the literature. Although, its validation was not possible since no experimental data is currently available. The hydrate growth rate was evaluated by studying the influence of the thermodynamic conditions, the hydrate porosity and thermal conductivity, the pipe diameter and the gas availability. As a result, it has been noticed that the hydrate porosity and the gas availability had great influence in the hydrate growth rate.
Lund, I. D. "Hydrodynamics and mass transfer problems in wet spinning." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370283.
Full textBooks on the topic "Mass transfer – Mathematical models"
Danilov, V. G. Mathematical modelling of heat and mass transfer processes. Dordrecht: Kluwer Academic Publishers, 1995.
Find full textLaari, Arto. Gas-liquid mass transfer in bubbly flow: Estimation of mass transfer, bubble size and reactor performance in various applications. Lappeenranta: Lappeenranta University of Technology, 2005.
Find full textHeat and mass transfer in building services design. London: E & FN Spon, 1998.
Find full textAnalytic Combustion: With Thermodynamics, Chemical Kinetics and Mass Transfer. Cambridge: Cambridge University Press, 2011.
Find full textAcosta, Jose Luis. Porous media: Heat & mass transfer, transport & mechanics. Hauppauge: Nova Science Publishers, 2009.
Find full textZhukov, M. I︠U︡. Massoperenos ėlektricheskim polem. Rostov-na-Donu: Izd-vo Rostovskogo universiteta, 2005.
Find full textModelling heat and mass transfer in freezing porous media. Hauppauge, N.Y., USA: Nova Science Publishers, 2012.
Find full textG, Danilov V., Volosov K. A, and Kolobov N. A, eds. Matematicheskoe modelirovanie prot͡s︡essov teplomassoperenosa: Ėvoli͡u︡t͡s︡ii͡a︡ dissipativnykh struktur. Moskva: "Nauka," Glav. red. fiziko-matematicheskoĭ litry, 1987.
Find full textI͡Unusov, M. Optimalʹnoe upravlenie v nekotorykh prot͡sessakh teplomassoperenosa. Dushanbe: Izd-vo "Donish", 1987.
Find full textPavlov, A. P. Matematicheskoe modelirovanie prot︠s︡essov teplomassoperenosa i temperaturnykh deformat︠s︡iĭ v stroitelʹnykh materialakh pri fazovykh perekhodakh. Novosibirsk: "Nauka", 2001.
Find full textBook chapters on the topic "Mass transfer – Mathematical models"
Danilov, Vladimir, Roman Gaydukov, and Vadim Kretov. "Mathematical Model." In Heat and Mass Transfer, 59–130. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0195-1_3.
Full textDanilov, V. G., V. P. Maslov, and K. A. Volosov. "Models for Mass Transfer Processes." In Mathematical Modelling of Heat and Mass Transfer Processes, 235–53. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0409-8_7.
Full textShang, De-Yi. "Complete Mathematical Models of Laminar Free Convection Film Boiling of Liquid." In Heat and Mass Transfer, 215–37. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-28983-5_11.
Full textShang, De-Yi. "Complete Similarity Mathematical Models on Laminar Free Convection Film Condensation from Vapor–Gas Mixture." In Heat and Mass Transfer, 367–97. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-28983-5_18.
Full textShang, De-Yi, and Liang-Cai Zhong. "Mathematical Model of Variable Physical Properties of Nanofluids." In Heat and Mass Transfer, 61–70. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-94403-6_5.
Full textShang, De-Yi. "Complete Mathematical Model of Laminar Free Convection Film Condensation of Pure Vapour." In Heat and Mass Transfer, 279–300. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-28983-5_14.
Full textPerktold, Karl, Martin Prosi, and Paolo Zunino. "Mathematical models of mass transfer in the vascular walls." In Cardiovascular Mathematics, 243–78. Milano: Springer Milan, 2009. http://dx.doi.org/10.1007/978-88-470-1152-6_7.
Full textSmagin, Sergey, Polina Vinoogradova, Ilya Manzhula, and Alber Livashvili. "Mathematical Model of Heat and Mass Transfer in a Colloidal Suspension with Nanoparticles." In Software Engineering Perspectives in Intelligent Systems, 382–92. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-63322-6_31.
Full textPetry, V. J., A. L. Bortoli, and O. Khatchatourian. "Development of a Mathematical Model for Heat and Mass Transfer Inside a Granular Medium." In Computational Methods in Engineering & Science, 243. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/978-3-540-48260-4_89.
Full textUvarova, Ludmila A. "Mathematical Model for Heat and Mass Transfer in the Systems with the Nonlinear Properties Induced by the Electromagnetic Radiation." In Mathematical Models of Non-Linear Excitations, Transfer, Dynamics, and Control in Condensed Systems and Other Media, 121–28. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-4799-0_9.
Full textConference papers on the topic "Mass transfer – Mathematical models"
Kharin, S. N. "Mathematical models of heat and mass transfer in electrical contacts." In 2015 IEEE 61st Holm Conference on Electrical Contacts (Holm). IEEE, 2015. http://dx.doi.org/10.1109/holm.2015.7354949.
Full textVai Yee, H., S. Zainal, J. Jelani, and I. M. Saaid. "Mathematical Workflow Incorporating PVT/Mass Transfer Rate Models for Subsurface Data Determination." In 11th European Conference on the Mathematics of Oil Recovery. Netherlands: EAGE Publications BV, 2008. http://dx.doi.org/10.3997/2214-4609.20146456.
Full textProstomolotov, Anatoliy, and Natalia Verezub. "HYDRODYNAMICS AND MASS TRANSFER IN SPECIAL CRYSTALLIZER DESIGNS." In Mathematical modeling in materials science of electronic component. LLC MAKS Press, 2020. http://dx.doi.org/10.29003/m1524.mmmsec-2020/78-82.
Full textKonovalov, Sergey V., Vladimir D. Sarychev, Sergey A. Nevskii, Tatyana Yu Kobzareva, Victor E. Gromov, and Alexander P. Semin. "Mathematical model of mass transfer at electron beam treatment." In THE 6TH INTERNATIONAL CONFERENCE ON THEORETICAL AND APPLIED PHYSICS (THE 6th ICTAP). Author(s), 2017. http://dx.doi.org/10.1063/1.4973041.
Full textZaichik, Leonid I., and V. A. Pershukov. "MATHEMATICAL MODELS FOR SIMULATION OF DYNAMICS, HEAT AND MASS TRANSFER AND COMBUSTION IN TWO-PHASE TURBULENT FLOWS." In International Heat Transfer Conference 10. Connecticut: Begellhouse, 1994. http://dx.doi.org/10.1615/ihtc10.5140.
Full textPorcaro, R. Rangel, G. Hubert, Eduardo Bauzer Medeiros, and Eliana Ferreira Rodrigues. "Mathematical model for the evaluation of refractory wear in the open-hearth blast furnace." In Turbulence, Heat and Mass Transfer 6. Proceedings of the Sixth International Symposium On Turbulence, Heat and Mass Transfer. Connecticut: Begellhouse, 2009. http://dx.doi.org/10.1615/ichmt.2009.turbulheatmasstransf.1030.
Full textJha, Ashutosh, Sultan Alimuddin, and Shafauddin. "A mathematical model of fractured porous media including mass transfer process." In 2011 National Postgraduate Conference (NPC 2011). Energy & Sustainability: Exploring the Innovative Minds. IEEE, 2011. http://dx.doi.org/10.1109/natpc.2011.6136465.
Full textKonovalova, Anastasiya V., and Liudmila A. Uvarova. "The mathematical model of effect of mass transfer on deformation in nanostructures." In INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS ICNAAM 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0027313.
Full textYang, Yuelei, and Dan Zhang. "Mathematical Modeling of Capillary Pumping Within Micron Sized Channels." 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/mnhmt2013-22111.
Full textXing, Zhixiang, and Juncheng Jiang. "The Model of Mass and Heat Transfer in LPG Tanks Partially Exposed to Jet Fire." In ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47036.
Full textReports on the topic "Mass transfer – Mathematical models"
Eldridge, Robert, B. Final Report - Advanced Hydraulic and Mass Transfer Models for Distillation Column Optimization and Design. Office of Scientific and Technical Information (OSTI), October 2005. http://dx.doi.org/10.2172/881299.
Full textGeorge A. Zyvoloski, Bruce A. Robinson, Zora V. Dash, and Lynn L. Trease. Summary of the Models and Methods for the FEHM Application-A Finite-Element Heat- and Mass-Transfer Code. Office of Scientific and Technical Information (OSTI), July 1997. http://dx.doi.org/10.2172/14903.
Full textZyvoloski, G. A., B. A. Robinson, Z. V. Dash, and L. L. Trease. Summary of the models and methods for the FEHM application - a finite-element heat- and mass-transfer code. Office of Scientific and Technical Information (OSTI), July 1997. http://dx.doi.org/10.2172/565545.
Full textPavlyuk, Ihor. MEDIACULTURE AS A NECESSARY FACTOR OF THE CONSERVATION, DEVELOPMENT AND TRANSFORMATION OF ETHNIC AND NATIONAL IDENTITY. Ivan Franko National University of Lviv, February 2021. http://dx.doi.org/10.30970/vjo.2021.49.11071.
Full text