Relevant bibliographies by topics / Heat mass transfers

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

Academic literature on the topic 'Heat mass transfers'

Author: Grafiati
Published: 4 June 2021
Last updated: 28 January 2023

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Journal articles on the topic "Heat mass transfers"

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Abidi, Awatef, Zehba Raizah, and Jamel Madiouli. "Magnetic Field Effect on the Double Diffusive Natural Convection in Three-Dimensional Cavity Filled with Micropolar Nanofluid." Applied Sciences 8, no. 12 (November 22, 2018): 2342. http://dx.doi.org/10.3390/app8122342.

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This article presents a three-dimensional numerical investigation of heat and mass transfers and fluid flow in a cavity filled with an Al2O3/water micropolar fluid under uniform magnetic field. To solve the governing non-dimensional equations, Finite Volume Method (FVM) based on 3-D vorticity-vector potential formulation has been employed. The effects of various parameters such as buoyancy ratio (−2 ≤ N ≤ 0), Rayleigh number (103 ≤ Ra ≤ 105), Hartmann number (0≤ Ha≤ 60), nanoparticles volume fraction (0 ≤ φ ≤ 0.06) and micropolar material parameter (0≤ K≤ 5) on flow structure and on heat and mass transfers are presented. The results illustrate that for the micropolar nanofluid model, both heat and mass transfer rates and three-dimensional character of the flow are smaller when compared with the pure nanofluid model. It is also observed that increase and decrease in heat and mass transfer rates is experienced due to increase in Rayleigh number and Hartmann number, respectively. It is also noted that increase in vortex viscosity parameter reduces the average heat and mass transfer rates and is more evident when the magnetic field is imposed. Combined effects of magnetic field and nanoparticles volume fraction on heat and mass transfers are also explored.
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PORCHERON, Emmanuel, Pascal LEMAITRE, Denis MARCHAND, Amandine NUBOER, and Jacques VENDEL. "ICONE15-10328 HEAT, MASS AND AEROSOLS TRANSFERS IN SPRAY CONDITIONS FOR CONTAINMENT APPLICATION." Proceedings of the International Conference on Nuclear Engineering (ICONE) 2007.15 (2007): _ICONE1510. http://dx.doi.org/10.1299/jsmeicone.2007.15._icone1510_166.

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Amari, Imen, and M. H. Chahbani. "Modeling and Simulation of Combined Heat and Mass Transfer in Zeolite SAPO-34 Coating for an Adsorption Heat Pump." Advances in Materials Science and Engineering 2021 (September 30, 2021): 1–11. http://dx.doi.org/10.1155/2021/3706981.

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Heat and mass transfers inside an adsorbent bed of an adsorption heat pump (AHP) are considered poor; consequently, they can cause low system performance. They should be enhanced so as to increase the coefficient of performance of the cooling machine. The aim of this work is to study an adsorbent bed coated with the zeolite SAPO-34. A simulation model based on governing equations for energy, mass, and momentum transfers is developed using COMSOL Multiphysics software. The system zeolite SAPO-34/water has been considered. Modeling results are validated by experimental database available at the Institute for Advanced Energy Technologies “Nicola Giordano,” Italy. It has been shown that the adsorption heat pump performance is affected by both heat and mass transfer. The enhancement of heat transfer solely is not sufficient to attain high values of specific cooling power. In the case of water vapor/SAPO-34 pair, mass transfer has a significant impact on the duration of the cooling step which should be shortened if one would want to increase the specific cooling power. The sole way to do it is to enhance mass transfer inside porous adsorbent.
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Min, J. C., and M. Su. "Heat and Mass Transfers and their Mutual Effects in Membrane Processes." Defect and Diffusion Forum 297-301 (April 2010): 676–81. http://dx.doi.org/10.4028/www.scientific.net/ddf.297-301.676.

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A mathematical model was developed to describe the coupled heat and mass transfers in membrane processes. Equations for the heat and mass transfer resistances were derived and the coupling effects of the heat and mass transfer were analyzed. With taking the membrane separation process of moist air as an example, the effects of air temperature and water vapor concentration on the heat and moisture transfer process were investigated. The results show that neither the thermal resistance nor the moisture resistance are constant, they are affected by not only the membrane parameters but also the air state. As the temperature difference between the two airstreams separated by the membrane increases, both the thermal and moisture resistances decrease, causing an improved heat and mass transfer. As the average temperature of the two airstreams increases, the thermal resistance remains almost constant while the moisture resistance decreases significantly. Further, as the water vapor concentration difference between the two airstreams increases, both the thermal and moisture resistances increase. As the average water vapor concentration of the two airstreams increases, the thermal resistance remains unchanged while the moisture resistance decreases.
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Seth, G. S., R. Kumar, and R. Tripathi. "Thermo-diffusion effects on the magnetohydrodynamic natural convection flow of a chemically reactive Brinkman type nanofluid in a porous medium." Bulgarian Chemical Communications 51, no. 2 (2019): 168–79. http://dx.doi.org/10.34049/bcc.51.2.4577.

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An investigation on the unsteady MHD natural convection heat and mass transfer flow of an electrically conducting, viscous, incompressible, chemically reactive and heat-absorbing nanofluid of Brinkman type past an exponentially accelerated moving vertical plate with ramped wall temperature and ramped surface concentration is carried out. Governing equations are non-dimensionalized and Laplace Transform Technique is used to find the exact solutions for fluid velocity, fluid temperature and species concentration. The quantities of physical interest, i.e. skin friction, rates of heat and mass transfers at the plate are also calculated. Numerical results for the velocity, temperature and species concentration of the fluid are demonstrated with the help of graphs whereas those of skin friction, rate of heat and mass transfers at the plate are displayed in tables for various flow parameters.
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Rahman, MS, R. Nasrin, and MI Hoque. "Heat-Mass Transfer of Nanofluid in Lid-Driven Enclosure under three Convective Modes." GANIT: Journal of Bangladesh Mathematical Society 38 (January 14, 2019): 73–83. http://dx.doi.org/10.3329/ganit.v38i0.39787.

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Heat is a form of energy which transfers between bodies which are kept under thermal interactions. When a temperature difference occurs between two bodies or a body with its surroundings, heat transfer occurs. Heat transfer occurs in three modes. Three modes of heat transfer are conduction, convection and radiation. Convection is a very important phenomenon in heat transfer applications and it occurs due to two different gradients, such as, temperature and concentration. This paper reports a numerical study on forced-mixed-natural convections within a lid-driven square enclosure, filled with a mixture of water and 2% concentrated Cu nanoparticles. It is assumed that the temperature difference driving the convection comes from the side moving walls, when both horizontal walls are kept insulated. In order to solve general coupled equations, a code based on the Galerkin's finite element method is used. To make clear the effect of using nanofluid on heat and mass transfers inside the enclosure, a wide range of the Richardson number, taken from 0.1 to 10 is studied. A fair degree of precision can be found between the present and previously published works. The phenomenon is analyzed through streamlines, isotherm and iso-concentration plots, with special attention to the Nusselt number and Sherwood number. The larger heat and mass transfer rates can be achieved with nanofluid than the base fluid for all conditions at Richardson number, Ri = 0.1 to 10. It has been found that the heat and mass transfer rate increase approximately 6% for water with the increase of Ri = 0.1 to 10, whereas these increase about 34% for nanofluid. GANIT J. Bangladesh Math. Soc.Vol. 38 (2018) 73-83
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Farhangmehr, Vahid, Hesam Moghadasi, and Sasan Asiaei. "A nanofluid MHD flow with heat and mass transfers over a sheet by nonlinear boundary conditions: Heat and mass transfers enhancement." Journal of Central South University 26, no. 5 (May 2019): 1205–17. http://dx.doi.org/10.1007/s11771-019-4081-z.

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Stabat, Pascal, and Dominique Marchio. "Heat-and-mass transfers modelled for rotary desiccant dehumidifiers." Applied Energy 85, no. 2-3 (February 2008): 128–42. http://dx.doi.org/10.1016/j.apenergy.2007.06.017.

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Zhang, Jianhua, Stephen Gray, and Jun-De Li. "Modelling heat and mass transfers in DCMD using compressible membranes." Journal of Membrane Science 387-388 (January 2012): 7–16. http://dx.doi.org/10.1016/j.memsci.2011.08.034.

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Hammami, Youness El, Kaoutar Zine-Dine, Rachid Mir, Touria Midiouni, and Mustapha Ait Hssain. "Numerical Simulation of Volatile Organic Compounds during Condensation in a Vertical Tube." Proceedings 38, no. 1 (December 26, 2020): 21. http://dx.doi.org/10.3390/proceedings2019038021.

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The purpose of this study is to analyze the combined heat and mass transfer through condensation of volatile organic compounds (VOCs), particularly alcohol (n-butanol-propanol) in the presence of non-condensable gas inside a vertical tube. An implicit finite difference method is employed to solve the coupled governing equations for liquid film and gas flow together with the interfacial matching conditions. The numerical results indicate that the Transfers are more intense at the entrance of the tube for the ternary mixture and promote heat and mass exchanges.
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Dissertations / Theses on the topic "Heat mass transfers"

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Gondre, Damien. "Numerical modeling and analysis of heat and mass transfers in an adsorption heat storage tank : Influences of material properties, operating conditions and system design on storage performances." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI022/document.

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Le développement de solutions de stockage de l'énergie est un défi majeur pour permettre la transition énergétique d'un mix énergétique fortement carboné vers une part plus importante des énergies renouvelables. La nécessité de stocker de l'énergie vient de la dissociation, spatiale et temporelle, entre la source et la demande d'énergie. Stocker de l'énergie répond à deux besoins principaux : disposer d'énergie à l'endroit et au moment où on en a besoin. La consommation de chaleur à basse température (pour le chauffage des logements et des bureaux) représente une part importante de la consommation totale d'énergie (environ 35 % en France en 2010). Le développement de solutions de stockage de chaleur est donc d'une grande importance, d'autant plus avec la montée en puissance des énergies renouvelables. Parmi les technologies de stockage envisageables, le stockage par adsorption semble être le meilleur compromis en termes de densité de stockage et de maintient des performances sur plusieurs cycles de charge-décharge. Cette thèse se focalise donc sur le stockage de chaleur par adsorption, et traite de l'amélioration des performances du stockage et de l'intégration du système au bâtiment. L'approche développée pour répondre à ces questions est numérique. L'influence des propriétés thermophysiques de l'adsorbant et du fluide sur la densité de puissance d'une part, mais aussi sur la densité de stockage et l'autonomie du système, est étudiée. L'analyse des résultats permet de sélectionner les propriétés des matériaux les plus influentes et de mieux comprendre les transferts de chaleur et de masse au sein du réacteur. L'influence des conditions opératoires est aussi mise en avant. Enfin, il est montré que la capacité de stockage est linéairement dépendante du volume de matériau, tandis que la puissance dépend de la surface de section et que l'autonomie dépend de la longueur du lit d'adsorbant. Par ailleurs, le rapport entre l'énergie absorbée (charge) et relâchée (décharge) est d'environ 70 %. Mais pendant la phase de charge, environ 60 % de la chaleur entrant dans le réacteur n'est pas absorbée et est directement relâchée à la sortie. La conversion globale entre l'énergie récupérable et l'énergie fournie n'est donc que de 25 %. Cela montre qu'un système de stockage de chaleur par adsorption ne peut pas être pensé comme un système autonome mais doit être intégré aux autres systèmes de chauffage du bâtiment et aux lois de commande qui les régissent. Utiliser la ressource solaire pour le préchauffage du réacteur est une idée intéressante car elle améliore l’efficacité de la charge et permet une réutilisation de la part récupérée en sortie pour le chauffage direct du bâtiment. La part stockée sous forme sensible peut être récupérée plusieurs heures plus tard. Le système est ainsi transformé en un stockage combiné sensible/adsorption, avec une solution pour du stockage à long terme et pour du stockage à court terme
The development of energy storage solutions is a key challenge to enable the energy transition from fossil resources to renewable energies. The need to store energy actually comes from a dissociation between energy sources and energy demand. Storing energy meets two principal expectations: have energy available where and when it is required. Low temperature heat, for dwellings and offices heating, represents a high share of overall energy consumption (i.e. about 35 %). The development of heat storage solutions is then of great importance for energy management, especially in the context of the growing part of renewable energies. Adsorption heat storage appears to be the best trade off among available storage technologies in terms of heat storage density and performances over several cycles. Then, this PhD thesis focuses on adsorption heat storage and addresses the enhancement of storage performances and system integration. The approach developed to address these issues is numerical. Then, a model of an adsorption heat storage tank is developed, and validated using experimental data. The influence of material thermophysical properties on output power but also on storage density and system autonomy is investigated. This analysis enables a selection of particularly influencing material properties and a better understanding of heat and mass transfers. The influence of operating conditions is also underlined. It shows the importance of inlet humidity on both storage capacity and outlet power and the great influence of discharge flowrate on outlet power. Finally, it is shown heat storage capacity depends on the storage tank volume, while outlet power depends on cross section area and system autonomy on bed length. Besides, the conversion efficiency from absorbed energy (charge) to released energy (discharge) is 70 %. But during the charging process, about 60 % of incoming heat is not absorbed by the material and directly released. The overall conversion efficiency from energy provided to energy released is as low as 25 %. This demonstrates that an adsorption heat storage system cannot be thought of as a self-standing component but must be integrated into the building systems and control strategy. A clever use of heat losses for heating applications (in winter) or inlet fluid preheating (in summer) enhances global performances. Using available solar heat for system preheating is an interesting option since a part is instantly retrieved at the outlet of the storage tank and can be used for direct heating. Another part is stored as sensible heat and can be retrieved a few hours later. At least, it has the advantage of turning the adsorption storage tank into a combined sensible-adsorption storage tank that offers short-term and long-term storage solutions. Then, it may differ avoidable discharges of the sorption potential and increase the overall autonomy (or coverage fraction), in addition to optimizing chances of partial system recharge
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Ben, Hassine Nidhal. "Etude numérique d'un écoulement forcé dans un canal horizontal dont la partie inférieure est constituée de boues assimilées à un matériau poreux." Thesis, Perpignan, 2017. http://www.theses.fr/2017PERP0021/document.

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Le séchage des boues d'épuration est un problème environnemental actuel, qui n'est pas suffisamment décrit dans la littérature. Par conséquent, ce travail représente une étude numérique des transferts de chaleur et de masse lors du séchage solaire des boues d’épuration. Cette boue est assimilée à un milieu poreux et exposée à un écoulement laminaire de convection forcée à l'intérieur d'un canal horizontal. Les transferts dans le canal et le milieu poreux sont décrits respectivement par les équations classiques de la convection forcée et par le modèle de Darcy-Brinkman-Forchheimer. Une méthode implicite aux différences finies est utilisée pour discrétiser le système d'équations différentielles régissant les transferts. Les systèmes algébriques obtenus sont résolus en utilisant les algorithmes de Gauss, Thomas et Gauss-Seidel. Afin de déterminer la vitesse de séchage, nous associons à ces équations un modèle de cinétique de séchage. Ce modèle est basé sur le concept de la courbe caractéristique. Nous avons particulièrement étudié les effets des conditions climatiques et des conditions relatives à la boue sur les évolutions spatio-temporelles des nombres caractéristiques des transferts ainsi que sur la cinétique de séchage. Le travail est complété par des simulations en utilisant des données météorologiques réelles de la région de Tataouine au sud de la Tunisie. Ces données ont subi un traitement statistique à l’aide de la méthode de Liu et Jordan afin de déterminer la journée type de chaque mois. L’étude de rentabilité du séchoir a montré que la période estivale est la période optimale pour le séchage
The drying of sewage sludge is a current environmental problem, not sufficiently described in the literature. Hence, the aim of this work is a numerical study of heat and mass transfers during solar drying of residual sludge. This sludge is assimilated to a porous medium and exposed to a forced convection laminar flow within a horizontal channel. The transfers in the channel and the porous medium are respectively described by the classic equations of forced convection and the Darcy-Brinkman-Forchheimer model. The implicit finite difference method is used to discretize the governing differential equation system. The algebraic systems obtained are solved using the Gauss, Thomas and Gauss-Seidel algorithms. To determine the drying rate, we associate a drying kinetics model. This model is based on the concept of the characteristic curve. We particularly studied the effects of climatic conditions (temperature, velocity and relative humidity of the ambient air as well as the solar radiation intensity) and the conditions relating to the sludge on the spatio-temporal evolutions of the transfers characteristic numbers as well as on drying kinetics. This work is completed by simulations using meteorological data from the Tataouine region in southern Tunisia. These data were statistically processed using the Liu and Jordan method to determine the typical day of each month. The rentability study of the dryer show that the summer period is the optimum period for drying
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Alzahrani, Faris. "3D modelling by computational fluid dynamics of local interactions of momentum, mass and heat transfers with catalyst deactivation in gas-solid catalytic reactors of low aspect ratios." Thesis, Lancaster University, 2016. http://eprints.lancs.ac.uk/82666/.

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Packed beds of gas-solid systems are extensively used as reactors, separators, dryers, filters, heat exchangers and combustors. The design of packed beds requires a detailed knowledge of local dynamics of flow, composition and temperature. Unfortunately, investigations for the development of 3D modelling codes by computational fluid dynamics are still not sufficiently mature compared with those relying on 2D modelling or simplified pseudo-homogenous models. This project investigates non-uniform catalyst deactivation in packed bed reactors of low aspect ratios under steady-state and dynamic operations. Low aspect ratio packed beds were selected as they are known to generate non-uniform distribution of local flow. Detailed knowledge of flow dynamics in terms of local structure of the packed bed, pressure drops, interstitial flow, heat and mass rate distributions was examined. The discrete element method was used to generate various packing configurations and the results of profiles of porosity were in a good agreement with the semi-analytical models, especially, in the vicinity of the wall. Similar oscillation trends with damping profiles towards the centre of the packed beds were observed. Flow heterogeneity was assessed by tests of mass transfer dispersion through a Lagrangian approach. Interactions of fluid flow, mass and heat transfers, and local deactivation of alumina catalyst Al2O3 of CO oxidation were investigated under design and operating conditions. An increase in the activation energy of deactivation promoted the deactivation by accelerating the reaction rate and releasing additional thermal energy, which in turn accelerated the deactivation. The 3D modelling allowed observation of local catalyst deactivation at packing pore level which is typically not accessible by the 2D modelling or pseudo-homogeneous models. In addition, the deactivation was quite asymmetrical along axial and radial directions, leading to uneven rates of thermal expansion and contraction and causing local deactivation associated with temperature runaways.
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Busser, Thomas. "Etude des transferts hygrothermiques dans les matériaux à base de bois et leurs contributions à l'ambiance intérieure des bâtiments." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAA010/document.

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L’objectif général de la thèse est de progresser dans la compréhension du comportement multi-physique des bâtiments en bois et d’améliorer l’évaluation de leur performance énergétique associée au confort hygrothermique. Les professionnels du secteur, ainsi que des études scientifiques, montrent des écarts entre les calculs et les mesures de performance (consommations, confort) de ces bâtiments. Les raisons de ces écarts ne sont pas encore bien élucidées : l’impact de l’humidité et de la chaleur latente dans ces constructions sont souvent mis en avant comme explication probable, bien que cela reste encore du domaine de la recherche. Les travaux les plus récents montrent que les fondements se situent probablement au niveau du comportement hygrothermique des matériaux à la base de bois en régime instationnaire. Ce travail de thèse se focalisera principalement sur deux échelles d’études : échelle matériau et échelle bâtiment. L’un des axes de travail de la thèse portera sur la caractérisation expérimentale des propriétés hygroscopiques de matériaux à base de bois et sur leur modélisation. Le second axe de travail portera sur l’intégration à l’échelle bâtiment de ces matériaux : en modélisation, intégrer l’impact des propriétés spécifiques de ces matériaux dans les assemblages constituants les parois, puis dans les bilans complexes à l’échelle du bâtiment. Une étude expérimentale portera sur une pièce de vie avec une forte présence de bois dans l’enveloppe du bâtiment pour caractériser le confort hygrothermique, et quantifier l’apport de l’inertie hygrique de l’enveloppe sur la performance de l’ambiance en termes de confort. Le cas échéant, des mesures seront également réalisées à l’échelle « paroi » d’une part, sur des constructions réelles d’autre part
The general aim of the thesis is to advance the understanding of multi-physical behavior of wooden buildings and improving the assessment of their energy performance with comfort hygrothermal. Sector professionals and scientific studies show the differences between the calculations and performance measures (consumption, comfort) of these buildings. The reasons for these differences are not yet well understood: the impact of moisture and latent heat in these constructions are often put forward as a likely explanation, although this is still research. The most recent studies show that the foundations are likely to fall at the hygrothermal behavior of materials at the base of wooden unsteady. This work will focus primarily on two studies scales: scale and scale building material. One of the lines of work of the thesis will focus on the experimental characterization of hygroscopic properties of wood-based materials and their modeling. The second strand of work will focus on building wide integration of these materials in modeling, integrating the impact of specific properties of these materials in the walls constituent assemblies and in complex balance sheets at the building scale . An experimental study will focus on a living room with a large presence of wood in the building envelope to characterize the hygrothermal comfort, and quantify the contribution of Hygric inertia of the envelope on performance in terms of the atmosphere comfort. If necessary, measures will also be drawn to scale "wall" on one hand, on real structures on the other
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Soares, Cintia. "Avaliação experimental dos coeficientes de transferencia de massa e calor em uma coluna com pratos perfurados." [s.n.], 2000. http://repositorio.unicamp.br/jspui/handle/REPOSIP/267657.

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Orientadores: Maria Regina Wolf Maciel, Antonio Andre Chivanga Barros
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica
Made available in DSpace on 2018-07-27T23:52:32Z (GMT). No. of bitstreams: 1 Soares_Cintia_M.pdf: 6610044 bytes, checksum: 4b52b82aa749a3987b506a6240f74361 (MD5) Previous issue date: 2000
Resumo: Devido à sua abrangência com os fenômenos de transferência de massa, calor e quantidade de movimento, capacidade e características operacionais, relações termodinâmicas e o amplo envolvimento com outros equipamentos industriais, o estudo dos processos de separação por destilação toma-se muito complexo, apesar de sua extensiva utilização nas indústrias químicas e petroquímicas. Por isto, trabalhos de grande relevância científica são ainda desenvolvidos para melhor entender os fenômenos relacionados e que permitem melhorar a sua operacionalidade. Assim, este trabalho teve como objetivo a avaliação experimental de uma coluna de destilação com pratos perfurados, permitindo averiguar o comportamento das eficiências de Murphree, O'Connell e da correlação de Barros & Wolf, além da avaliação dos perfis dos coeficientes de transferência de massa e calor ao longo do equipamento. Os dados experimentais obtidos foram utilizados para a validação dos modelos de estágios de equilíbrio e de não equilíbrio e da correlação de eficiência desenvolvida por Barros & Wolf. Para a realização deste trabalho, uma coluna de destilação, em aço inoxidável, contendo 8 pratos perfurados com vertedor e um sistema para controle da potência foram projetados e construídos. A coluna contém 8 pontos para a coleta de amostras de líquido e termopares acoplados em cada prato para a leitura de temperatura. Para cada experimento foram variadas as composições do etanol na alimentação e a potência fomecida ao refervedor para avaliar a influência da carga térmica sobre o comportamento das frações molares e da temperatura em uma coluna operada a refluxo total. Nos ensaios, trabalhou-se com o sistema etanolágua por ser de fácil determinação analítica e por existirem dados de equilíbrio precisos e alguns valores de eficiência. Após o alcance do estado estacionário, determinado a partir de leituras periódicas de temperatura ao longo do equipamento, foram feitas coletas de amostras de líquido em cada estágio da coluna, as quais foram analisadas empregando a técnica de cromatografia à gás. Com os dados da temperatura, composição do etanol e da água em cada estágio e da potência fomecida ao refervedor, foram calculadas as eficiências de Murphree e de O'Connell. Com a utilização de programas computacionais envolvendo a modelagem de estágios de equilíbrio (com a correlação de Barros & Wolf) e de não equilíbrio, desenvolvidos no Laboratório de Desenvolvimento de Processos de Separação da UNICAMP, foram realizadas simulações nas condições de operação dos experimentos, cujos dados obtidos foram utilizados para comparação com dados experimentais de forma a corroborar tais modelos. Os resultados obtidos mostraram que as modelagens de estágios de equil íbrio e de não equilíbrio reproduzem, com grande fidelidade, as condições reais do processo e representam o comportamento real dos coeficientes de transferência de massa e calor ao longo da coluna de destilação. Os resultados obtidos mostraram-se compatíveis com os dados da literatura
Abstract: Due to the relation with the mass, heat and momentum transfer phenomena, capacity and operational characteristics, thermodynamic properties and the wide relationship with other industrial equipment, the study of the separation processes by distillation becomes very complex, in spite of its extensive use in the chemical and petrochemical industries. For this reason, researches of great scientific relevance are still being developed for better understanding the related phenomena and for allowing the improvement of the operation. Thus, this work presents as objective the experimental study of a distillation column with sieve plates to evaluate the behaviour of the Murphree efficiency, Q'Connell and Barros & Wolf correlations and the mass and heat transfer coefficients along the equipment. The experimental data were obtained used for the validation of the equilibrium and nonequilibrium stage models and of the new efficiency correlation developed by Barros & Wolf. For these purposes, a stainless steel distillation column with eight sieve plates with down comer and a system for the power measuring were designed and built. The column contains eight spaced temperature/sample points. For each experiment, the ethanol feed composition and the heat duty were changed to evaluate the influence of the heat duty on the behaviour of the mole fractions and on the temperature profiles in the column operating at total reflux. After established the steady state, the liquid samples and the temperature were taken in each stage of the column, and the samples were analyzed using the gas chromatography technique. Using the temperature and ethanol and water compositions in each stage and the heat duty supplied to the reboiler, Murphree and Q'Connell efficiency were calculated. The programs involving the equilibrium stage model (with Barros & Wolf correlation) and the nonequilibrium stage model developed in the Laboratory of Separation Process Development (UNICAMP) were used in the simulations at the same conditions of the experiments. The data obtained with simulations were compared with experimental data to corroborate such models. The obtained results showed that the equilibrium stage model and the nonequilibrium stage model reproduce, with great fidelity, the real conditions of the process and they can be used to represent the real behaviour of the mass and heat transfer coefficients along the distillation column
Mestrado
Desenvolvimento de Processos Químicos
Mestre em Engenharia Química
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Gudmundsson, Yngvi. "Performance evaluation of wet-cooling tower fills with computational fluid dynamics." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/19908.

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Thesis (MScEng)--Stellenbosch University, 2012.
ENGLISH ABSTRACT: A wet-cooling tower fill performance evaluation model developed by Reuter is derived in Cartesian coordinates for a rectangular cooling tower and compared to cross- and counterflow Merkel, e-NTU and Poppe models. The models are compared by applying them to a range of experimental data measured in the cross- and counterflow wet-cooling tower test facility at Stellenbosch University. The Reuter model is found to effectively give the same results as the Poppe method for cross- and counterflow fill configuration as well as the Merkel and e-NTU method if the assumptions as made by Merkel are implemented. A second order upwind discretization method is applied to the Reuter model for increased accuracy and compared to solution methods generally used to solve cross- and counterflow Merkel and Poppe models. First order methods used to solve the Reuter model and crossflow Merkel and Poppe models are found to need cell sizes four times smaller than the second order method to obtain the same results. The Reuter model is successfully implemented in two- and three-dimensional ANSYS-Fluent® CFD models for under- and supersaturated air. Heat and mass transfer in the fill area is simulated with a user defined function that employs a second order upwind method. The two dimensional ANSYS-Fluent® model is verified by means of a programmed numerical model for crossflow, counterflow and cross-counterflow.
AFRIKAANSE OPSOMMING: ‘n Natkoeltoring model vir die evaluering van pakkings werkverrigting, wat deur Reuter ontwikkel is, word in Kartesiese koördinate afgelei vir ‘n reghoekige koeltoring en word vergelyk met kruis- en teenvloei Merkel, e-NTU en Poppe modelle. Die verskillende modelle word vergelyk deur hulle op ‘n reeks eksperimentele data toe te pas wat in die kruis- en teenvloei natkoeltoring toetsfasiliteit by die Universiteit van Stellenbosch gemeet is. Dit is bevind dat die Reuter model effektief dieselfde resultate gee as die Poppe model vir kruis- en teenvloei pakkingskonfigurasies sowel as die Merkel en e-NTU metode, indien dieselfde aannames wat deur Merkel gemaak is geїmplementeer word. ‘n Tweede orde “upwind” metode word op die Reuter model toegepas vir hoër akkuraatheid en word vergelyk met oplossingsmetodes wat gewoonlik gebruik word om kruis- en teenvloei Merkel en Poppe modelle op te los. Eerste orde metodes wat gebruik is om die Reuter model en kruisvloei Merkel en Poppe modelle op te los benodig rooster selle wat vier keer kleiner is as vir tweede orde metodes om dieselfde resultaat te verkry. Die Reuter model is suksesvol in twee- en driedimensionele ANSYS-Fluent® BVD (“CFD”) modelle geїmplementeer vir on- en oorversadigde lug. Warmte- en massaoordrag in die pakkingsgebied word gesimuleer mbv ‘n gebruiker gedefinieerde funksie (“user defined function”) wat van ‘n tweede orde numeriese metode gebruik maak. Die tweedimensionele ANSYS-Fluent® model word m.b.v. ‘n geprogrameerde numeriese model bevestig vir kruis-, teen- en kruis-teenvloei.
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Bouzarour, Amina. "Auto-échauffement d'un lit ventilé de matériaux carbonés : cas du bois torréfié Experimental study of torrefied wood fixed bed: Thermal analysis and source term identification." Thesis, Ecole nationale des Mines d'Albi-Carmaux, 2019. http://www.theses.fr/2019EMAC0012.

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La torréfaction est l'un des procédés de prétraitement thermochimique de la biomasse lignocellulosique qui permet de faciliter le stockage et le transport du matériau, mais aussi d'augmenter la densité énergétique du produit. Néanmoins, le substrat torréfié étant plus réactif, il est plus sujet à des mécanismes exothermiques spontanés pouvant entraîner un auto-échauffement de la matière. Dans le cadre de cette thèse, cette problématique a été étudiée pour le cas du bois torréfié. En effet, il a été question de comprendre les phénomènes responsables de l'auto-échauffement d'un lit de biomasse ventilé par un gaz oxydant à basse température. Pour ce faire, des scenarii d'auto-échauffement de plaquettes de bois torréfié ont été créés sous une atmosphère oxydante. Des expérimentations ont été conduites à l'échelle pilote dans un réacteur à lit fixe de 12 L. Au cours de ces essais, nous avons démontré que l'auto-échauffement est intensifié lorsque le débit du gaz oxydant est faible et sous une fraction d'oxygène élevée. Par ailleurs, la chaleur produite au cours de l'auto-échauffement du lit de bois a été estimée sur la base d'un bilan de chaleur et des données thermiques. Des paramètres cinétiques apparents et une chaleur de réaction associés à l'auto-échauffement ont été déduits. D'autre part, dans le but d'appréhender les phénomènes exothermiques caractérisant l'auto-échauffement, des essais d'oxydation à basse température sont réalisés à petite échelle (en ATG/ATD). Des modèles cinétiques ont ensuite été mis en œuvre pour distinguer et quantifier les mécanismes repérés expérimentalement. Ces deux approches ont permis de mettre en avant trois principaux mécanismes intervenant lors de l'oxydation à basse température : l'adsorption chimique de l'oxygène sur le réactif, la décomposition des complexes oxygénés formés à l'adsorption et une réaction d'oxydation directe. Dans une approche plus orientée vers des problématiques à l'échelle industrielle de l'auto-échauffement, un modèle numérique couplant cinétique chimique et transferts de matière et de chaleur a été conçu, à l'échelle du lit de particules. Ce modèle a permis de prédire de façon raisonnable la thermique du lit de bois torréfié à fort débit de ventilation. Il a été ensuite extrapolé à l'échelle industrielle pour simuler le comportement thermique d'un silo de stockage subissant un auto-échauffement
Torrefaction is one of the thermo-chemical pretreatment processes of lignocellulosic biomass that facilitates both the storage and transport of the material and increases the energy value of the product. However, as the torrefied substrate is more reactive, it is more prone to spontaneous exothermic mechanisms that can lead to self-heating of the material. This issue is not well investigated in the case of torrefied wood since its industrial application is mainly in the test phase. For this reason, this topic is further studied throughout this thesis. Indeed, the aim was to understand the phenomena responsible for the self-heating of a bed of biomass ventilated with oxidizing gas at low temperature. To do this, self-heating scenarios of torrefied wood chips were created under an oxidizing atmosphere. Pilot-scale experiments were conducted in a 12 L fixed-bed reactor. During these tests, we demonstrated that self-heating is intensified when the oxidizing gas flow rate is low and under a high oxygen fraction. In addition, the heat produced during the self-heating of the wooden bed was estimated on the basis of a heat balance and thermal data. Then, the source term was correlated to the oxygen fraction and temperature in a simplified model. The apparent kinetic parameters and heat of reaction associated with self-heating were derived from this. On the other hand, in order to understand the exothermic phenomena characterizing self-heating, low temperature oxidation tests are carried out on a small scale (ATG/ATD). On the basis of these analyses, kinetic models were developed to distinguish and quantify the mechanisms identified experimentally. These two approaches have made it possible to highlight three main mechanisms involved in low-temperature oxidation: chemical adsorption of oxygen on the reagent, decomposition of the oxygen complexes formed during adsorption and a direct oxidation reaction. In a more problem-oriented approach to industrial-scale self-heating, a numerical model coupling chemical kinetics and mass and heat transfers was designed at the scale of the particle bed. This model provided a reasonable prediction of the thermal performance of the torrefied wood bed under high ventilation flow. It was then extrapolated to an industrial scale to simulate the thermal behaviour of a storage silo undergoing self-heating
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Mahdhaoui, Hamza. "Etude numérique des transferts de masse et de chaleur dans un canal contenant un matériau poreux de section carrée." Thesis, Perpignan, 2018. http://www.theses.fr/2018PERP0037/document.

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Les caractéristiques des transferts de masse et de chaleur par convection forcée lors de l'évaporation du film liquide dans le canal en présence d'un cylindre carré poreux parcouru par un écoulement transversal sont étudiées numériquement. L'objectif principal de la présente étude est d'évaluer l'effet de l'introduction d'un cylindre carré poreux sur le transfert de chaleur et de masse. Plus précisément, cette étude examine l'influence de paramètres tels que l'humidité relative de l'air ambiant, la température de l'air à l'entrée, le flux de chaleur imposé, la position du cylindre, le taux de blocage et le nombre de Reynolds. Une comparaison entre les deux configurations, avec et sans cylindre carré poreux a été réalisée pour mettre en évidence l'effet de son ajout. Pour modéliser ce phénomène nous avons résolu l'équation classique de convection forcée et le modèle de Darcy-Brinkman-Forchheimer dans les milieux poreux. Nous avons trouvé que l'insertion d'un cylindre carré poreux dans le canal pourrait perturber l'écoulement et améliorer de manière significative les taux de transfert de masse et de chaleur au niveau des parois du canal. Les transferts de chaleur et de masse deviennent plus importants avec la diminution du nombre de Darcy et lorsque l'obstacle poreux est placé au milieu du canal. Par contre, l'augmentation de l’humidité relative de l’air ambiant et de la température d'entrée réduit le transfert de masse. A Da = 10-6, l'écoulement ne pénètre plus à travers le cylindre poreux, la structure de l'écoulement est similaire à celui d'un cylindre carré plein. Enfin, nous proposons des lois de corrélations qui permettent de prédire les valeurs des nombres de Sherwood et de Nusselt en fonction des nombres de Reynolds, de Biot et du taux de blocage
The characteristics of mass and heat transfers by forced convection during liquid film evaporation in the channel with a built in porous square cylinder in a cross flow are investigated numerically. The main objective of the present study is to evaluate the effect of introducing a porous square cylinder on the heat and mass transfer. Specifically, this study examines the influence of parameters such as the relative humidity of the ambient air, the air inlet temperature, the imposed heat flux, the variation of the cylinder position, blockage ratio and Reynolds number on the performance of the evaporation at the channel wall. A comparison between the two configurations, with and without, porous square cylinder has been performed to highlight the effect of its addition. To achieve this, we solved the classic equation of forced convection and the Darcy-Brinkman-Forchheimer model in the porous media. We find that the insertion of a porous square cylinder in the channel could make the flow more disturbed and significantly improve mass and heat transfer rates at the channel walls. The heat and mass transfer enhancements is greater with a decrease of the Darcy number and for γ=1 when the porous obstacle is placed in the middle of the channel. It is also greater with a decrease of the temperature and relative humidity of the air at the inlet. At Da = 10-6, the flow does not penetrate through the porous cylinder, the flow pattern is similar to that of a solid square cylinder. Finally, we propose correlations that allow us to define the Sherwood and Nusselt numbers based on the Reynolds, Biot numbers and the blockage ratio
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Nadim, Pedram. "Irreversibility of combustion, heat and mass transfer." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13651.

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Combustion is by far the most commonly used technology for energy conversion. The analysis of entropy generation and exergy loss is normally used to optimize thermal energy technologies such as gas turbines. The loss of exergy in the combustor is the largest of all component losses in gas turbine systems. The exergy efficiency of gas turbine combustors is typically 20-30%. In recent years the focus on reduction of climate gas and pollutant emissions from combustion has been a driving factor for research on combustion efficiency. The emphasis on fuel economy and pollution reduction from combustion motivates a study of the exergy efficiency of a combustion process. A bulk exergy analysis of the combustor does not take into account the complexity of the combustion process. The spatial dimensions of the flame must be accounted for in order gain detailed information about the entropy generation. This motivates a study of the local entropy production in a flame and quantifying the mechanisms that reduce the exergetic efficiency. The entropy production in combustion is also believed to have an effect on the stability of the flame. As most combustors operate with turbulent flow the emphasis of this report is on turbulent combustion.The source of exergy destruction or irreversibility in combustion is generally attributed to four different mechanisms: chemical reaction, internal heat transfer, mass diffusion of species, and viscous dissipation. The irreversibilities from the first three sources have been computed for a turbulent hydrogen H2 jet diffusion flame using prescribed probability density functions and data from experiments. The contribution of each source of exergy destruction is locally quantifed in the flame. Two different modeling assumptions are made, one based on a fast chemistry assumption and the other based on curve fitted relations from experimental data. The second law efficiency of the flame was found to be 98.7% when assuming fast chemistry, and 76.0% when curve fits from experimental data where used.The contribution from viscous dissipation has in previous studies been found to be negligible, and in order to simplify the modeling of the turbulent flow its contribution to the total entropy production has not been studied in this report.
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Keyhani, Alireza. "Heat and mass transfer in layered seedbed." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq23997.pdf.

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Books on the topic "Heat mass transfers"

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Mills, Anthony F. Heat and mass transfer. Burr Ridge, Ill: Irwin, 1995.

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White, Frank M. Heat and mass transfer. Reading, Mass: Addison-Wesley, 1988.

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Baehr, H. D. Heat and mass transfer. Berlin: Springer, 1998.

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Baehr, H. D. Heat and Mass Transfer. Berlin, Heidelberg: Springer-Verlag Berlin Heidelberg, 2011.

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Baehr, Hans Dieter, and Karl Stephan. Heat and Mass Transfer. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/3-540-29527-5.

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Karwa, Rajendra. Heat and Mass Transfer. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3988-6.

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Baehr, Hans Dieter, and Karl Stephan. Heat and Mass Transfer. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-20021-2.

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Karwa, Rajendra. Heat and Mass Transfer. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-1557-1.

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Baehr, Hans Dieter, and Karl Stephan. Heat and Mass Transfer. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-662-03659-4.

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Basic heat and mass transfer. 2nd ed. Upper Saddle River, N.J: Prentice Hall, 1999.

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Book chapters on the topic "Heat mass transfers"

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Morel, Christophe. "Interfacial Heat and Mass Transfers." In Mathematical Modeling of Disperse Two-Phase Flows, 193–203. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-20104-7_9.

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Zili-Ghedira, Leila, Hana Gouider, and Sassi Ben Nasrallah. "Mathematical Modeling of Heat and Mass Transfers in Humidifiers." In Exergy for A Better Environment and Improved Sustainability 1, 473–88. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-62572-0_32.

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Dhiman, S. K., and Om Prakash Pandey. "Effect of Blanching on Drying Kinetics during Drying the Banana Slices: A Heat-Mass Transfers Study." In Advances in Mechanical and Industrial Engineering, 35–40. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003216742-6.

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Karwa, Rajendra. "Heat Exchangers." In Heat and Mass Transfer, 865–928. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1557-1_14.

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Karwa, Rajendra. "Heat Exchangers." In Heat and Mass Transfer, 967–1039. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3988-6_14.

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Karwa, Rajendra. "Mass Transfer." In Heat and Mass Transfer, 929–48. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1557-1_15.

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Karwa, Rajendra. "Mass Transfer." In Heat and Mass Transfer, 1041–66. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3988-6_15.

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Karwa, Rajendra. "Convective Heat Transfer." In Heat and Mass Transfer, 381–538. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1557-1_7.

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Karwa, Rajendra. "Convective Heat Transfer." In Heat and Mass Transfer, 413–563. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3988-6_7.

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Karwa, Rajendra. "Conduction with Heat Generation." In Heat and Mass Transfer, 197–246. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1557-1_4.

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Conference papers on the topic "Heat mass transfers"

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Chounet, L. M., D. Hilhorst, C. Jouron, Y. Kelanemer, and P. Nicolas. "COUPLED HEAT AND MASS TRANSFERS IN POROUS MEDIA: NUMERICAL SIMULATION FOR SOIL-BUILDING TRANSFERS." In International Heat Transfer Conference 10. Connecticut: Begellhouse, 1994. http://dx.doi.org/10.1615/ihtc10.3850.

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Chesneau, X., L. Pietri, J. Bresson, and B. Zeghmati. "Convection heat and mass transfers in a vertical duct." In 2000 Quantitative InfraRed Thermography. QIRT Council, 2000. http://dx.doi.org/10.21611/qirt.2000.016.

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Schneider, P. S., Jean-Jacques Roux, and J. Brau. "HEAT AND MASS TRANSFERS IN MULTIROOM BUILDINGS: STRATEGIES FOR SOLVING THE COUPLED PROBLEM." In International Heat Transfer Conference 10. Connecticut: Begellhouse, 1994. http://dx.doi.org/10.1615/ihtc10.320.

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Aloui, F., F. Rehimi, M. S. Dhouaieb, Sassi Ben Nasrallah, M. Pavageau, and Jack Legrand. "Synchronization of PIV and electrochemical measurements of transfers: application to a wall bounded wake flow downstream of an cylinder." 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.1710.

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Amara, M., M. El Ganaoui, and D. Hourlier. "A Computational Heat and Mass Transfers Model for a Laser Pyrolysis Reactor." In ITSC2005, edited by E. Lugscheider. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2005. http://dx.doi.org/10.31399/asm.cp.itsc2005p0535.

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Abstract Recently the research about technical ceramics knows a renewed interest. The synthesis process of nanopowders plays a significant role in the production of such materials. This work, concerns particularly the synthesis of the nanopowders by laser pyrolysis. A numerical model is developed in order to understand the influence of the heat transfers occurring in the reactor and around the reaction zone, for a better control of the process. The study highlights the importance of the thermal transfer in the cell. A simple one dimensional analysis enabled us to define a stability condition of the flame function of the precursor flow rate and the cell pressure. The extended 3D calculations underline the complex fluid flow and heat transfer developing in the synthesis reactor.
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BIASI, Valentin, Gillian Leplat, Frédéric Feyel, and Pierre Beauchene. "Heat and mass transfers within decomposing carbon fibers/epoxy resin composite materials." In 11th AIAA/ASME Joint Thermophysics and Heat Transfer Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2014. http://dx.doi.org/10.2514/6.2014-2678.

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Qu, Wei, Yantao Qu, and Tongze Ma. "Mechanisms of Coupled Heat Transfer and Flow of High Heat Flux Pulsating Heat Pipe." In ASME 2004 2nd International Conference on Microchannels and Minichannels. ASMEDC, 2004. http://dx.doi.org/10.1115/icmm2004-2425.

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The mechanisms of coupled heat transfer and flow are modeled to describe the looped pulsating heat pipe of high heat flux. The latent heat transfer produces the pressure difference between the heating section and cooling section. This can provide the operational driving force to overcome the total flow resistances. While the sensible heat transfer contributes more to the transferred power. The results demonstrate that the circulation flow velocity can balance the heat and mass transfers automatically. And the ratio of latent heat transfer to sensible heat transfer is within 30 percent.
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Noumowe, A., M. V. G. de Morais, M. Kanema, J. L. Gallias, and R. Cabrillac. "Heat and Mass Transfers in a Heated Concrete Element: 20 to 600°C." In ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/fedsm2006-98264.

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The aim of this work is to carry out a numerical study on the coupled heat and mass transfers in a concrete element exposed to elevated temperature in order to explain the behaviour observed during experimental studies. Comparisons were drawn on numerical and experimental results on the thermo-hydrous behavior of a concrete element. Parametric analyses were carried out in order to underline main parameters involved in concrete behavior at high temperature. The numerical and experimental results included thermal gradient, water vapor pressure, relative humidity, concrete mass losses due to dehydration, water content for a concrete element heated from 20 to 600 °C. The results show high thermal gradients and high vapor pressure in the concrete element in addition to the damage due to concrete chemical transformations at high temperature.
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Bouali, Zakaria, Bruno Delhom, Karine Truffin, Hicham Meftah, and Julien Reveillon. "DNS ANALYSIS OF HEAT AND MASS TRANSFERS IN A DROPLET-LADEN TURBULENT JET." In Proceedings of CHT-08 ICHMT International Symposium on Advances in Computational Heat Transfer. Connecticut: Begellhouse, 2008. http://dx.doi.org/10.1615/ichmt.2008.cht.1690.

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Lemaitre, P., E. Porcheron, L. Bouilloux, and G. Grehan. "GLOBAL RAINBOW REFRACTOMETRY DEVELOPMENT TO CHARACTERIZE HEAT AND MASS TRANSFERS IN A TWO PHASE FLOW." In Annals of the Assembly for International Heat Transfer Conference 13. Begell House Inc., 2006. http://dx.doi.org/10.1615/ihtc13.p4.90.

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Reports on the topic "Heat mass transfers"

1

Zyvoloski, G., Z. Dash, and S. Kelkar. FEHM: finite element heat and mass transfer code. Office of Scientific and Technical Information (OSTI), March 1988. http://dx.doi.org/10.2172/5495517.

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Zyvoloski, G., Z. Dash, and S. Kelkar. FEHMN 1.0: Finite element heat and mass transfer code. Office of Scientific and Technical Information (OSTI), April 1991. http://dx.doi.org/10.2172/138080.

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Goldstein, R. J., and M. Y. Jabbari. The impact of separated flow on heat and mass transfer. Office of Scientific and Technical Information (OSTI), January 1990. http://dx.doi.org/10.2172/6546146.

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Pesaran, A. A. Heat and mass transfer analysis of a desiccant dehumidifier matrix. Office of Scientific and Technical Information (OSTI), July 1986. http://dx.doi.org/10.2172/5438707.

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Bell, J., and L. Hand. Calculation of Mass Transfer Coefficients in a Crystal Growth Chamber through Heat Transfer Measurements. Office of Scientific and Technical Information (OSTI), April 2005. http://dx.doi.org/10.2172/918405.

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Maclaine-Cross, I. L., and A. A. Pesaran. Heat and Mass Transfer Analysis of Dehumidifiers Using Adiabatic Transient Tests. Office of Scientific and Technical Information (OSTI), April 1986. http://dx.doi.org/10.2172/1129251.

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Drost, Kevin, Goran Jovanovic, and Brian Paul. Microscale Enhancement of Heat and Mass Transfer for Hydrogen Energy Storage. Office of Scientific and Technical Information (OSTI), September 2015. http://dx.doi.org/10.2172/1225296.

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Zyvoloski, G., Z. Dash, and S. Kelkar. FEHMN 1.0: Finite element heat and mass transfer code; Revision 1. Office of Scientific and Technical Information (OSTI), May 1992. http://dx.doi.org/10.2172/138419.

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Kukuck, S. Heat and mass transfer through gypsum partitions subjected to fire exposures. Gaithersburg, MD: National Institute of Standards and Technology, 2009. http://dx.doi.org/10.6028/nist.ir.7461.

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Prucha, R. H. Heat and mass transfer in the Klamath Falls, Oregon, geothermal system. Office of Scientific and Technical Information (OSTI), May 1987. http://dx.doi.org/10.2172/6247658.

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