Modeling of dry pressure drop for fully developed gas flow in structured packing using CFD simulations

Said, Walid; Nemer, Maroun; Clodic, Denis

doi:10.1016/j.ces.2011.02.011

Cited by 63 publications

(52 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The choice of the REU was further discussed by Raynal et al (2004), who proposed considering the flow domain between two consecutive plates for gas flow calculations, or preferentially the smallest periodic element. More recently, Said et al (2011) show that the pressure drop per unit length for a small number of REU is the same as for the entire column, which simplifies its computational modeling. Nikou and Ehsani (2008) tested different turbulence models to study wet and dry pressure drop and investigated heat and mass transfer in structured packings.…”

Section: Structured Packing Characterisation By Using Cfdmentioning

confidence: 99%

“…The purpose of this section is to present an appropriate approach to simulate dry pressure drop and thus to validate the straightforward CFD method to simulate gas flow in structured packing. As discussed in Petre et al (2003) and Said et al (2011), the dry pressure drop is an important design parameter, since it gives insight into the trend of the wet pressure drop performance. It thus leads to a first evaluation of the capacity of the packing.…”

Section: Pressure Dropmentioning

confidence: 99%

“…Petre et al (2003) suggested a criss-crossing channel element. Raynal and Royon-Lebeaud (2007) and Said et al (2011) proposed a geometry with periodic conditions at all cut boundaries. In this work, the second type of REU was considered.…”

Section: Pressure Dropmentioning

confidence: 99%

See 2 more Smart Citations

Use of Computational Fluid Dynamics for Absorption Packed Column Design

Haroun

Raynal

2015

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

View full text Add to dashboard Cite

-Computational Fluid Dynamics (CFD) is today commonly used in a wide variety of process industries and disciplines for the development of innovative technologies. The present article aims to show how CFD can be used as an effective analysis and design tool for the development and design of packed gas/liquid absorption columns. It is first shown how CFD can be used for the characterisation of packings. The different hydrodynamic and mass transfer design parameters are investigated and adapted CFD methods are suggested. Secondly, column distribution internal development is discussed to show how CFD simulations should be performed to improve the design of gas and liquid distributors. An example of the development of new distribution technologies for floating installation of a reactive absorption column is also presented.Résumé -Utilisation de la dynamique des fluides numérique pour le design des colonnes d'absorption à garnissages -La dynamique des fluides numérique (Computational Fluid Dynamics, CFD) est aujourd'hui couramment utilisée pour le développement de technologies innovantes dans de nombreux domaines et procédés industriels. Cet article a pour objectif de montrer comment la CFD peut être utilisée comme outil d'analyse et de dimensionnement pour le développement des colonnes d'absorption gaz-liquide à garnissages. En premier, il est présenté comment la CFD peut être utilisée pour caractériser les différents paramètres de dimensionnement d'un garnissage (hydrodynamique et transfert). Les méthodes CFD appropriées sont suggérées et discutées. En second, l'utilisation de la CFD pour le développement et l'optimisation des internes de distribution gaz-liquide est exposée. Un exemple de développement par CFD d'une nouvelle technologie de distribution pour une colonne d'absorption réactive sur une installation flottante offshore est présenté.

show abstract

Section: Structured Packing Characterisation By Using Cfdmentioning

confidence: 99%

Section: Pressure Dropmentioning

confidence: 99%

See 1 more Smart Citation

Use of Computational Fluid Dynamics for Absorption Packed Column Design

Haroun

Raynal

2015

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

View full text Add to dashboard Cite

show abstract

“…Adicionalmente, é necessário construir uma malha computacional adequada que cubra todo o espaço computacional do fluido para garantir cálculos precisos (Nikou e Ehsani, 2008). As simulações em leitos empacotados estruturados sugerem que o modelo k-ω SST é o mais adequado para prever o comportamento fluidodinâmico e da perda de carga em leitos empacotados estruturados dentre os diferentes modelos de turbulência RANS (Said et al, 2011). A fim de entender o comportamento fluidodinâmico ao longo das células da espuma estrutura, um modelo tetradecaédrico (também conhecido como o modelo de célula Kelvin) foi utilizado para representar a estrutura das espumas na geração do domínio computacional.…”

Section: Simulação Cfd Em Leitos Empacotados Estruturadosunclassified

“…As principais vantagens do reator empacotado estruturado são: uma grande área de superfície externa; uma elevada resistência mecânica; uma elevada porosidade e uma baixa perda de carga resultante. A melhor compreensão da fluidodinâmica nos recheios de espuma estruturada é importante para o projeto e investigação de novas configurações com objetivo de se obter a mínima perda de carga no leito catalítico, enquanto se alcança uma alta eficiência em conversão (Said et al, 2011). A determinação da perda de carga através de um leito empacotado é uma função da vazão, restrições geométricas e das propriedades físicas do material do leito.…”

Section: Introductionunclassified

Avaliação De Modelos De Turbulência Rans Na Previsão Da Perda De Carga Em Reatores De Leito Poroso Preenchido Com Espuma Estruturada Utilizando a Fluidodinâmica Computacional (Cfd).

Fontoura¹,

Cárdenas²,

Nunhez³

2015

Anais Do XX Congresso Brasileiro De Engenharia Química

View full text Add to dashboard Cite

RESUMO -A utilização de espumas estruturadas de células abertas de elevada área superficial ganha importância em aplicações industriais como, por exemplo, no recheio de reatores de leito poroso. A espuma fornece maior eficiência energética e menor perda de carga ao se comparar com outros recheios. Este trabalho consiste em simular através da fluidodinâmica computacional (CFD) o escoamento através de um volume da espuma aplicando diferentes modelos de turbulência baseados nas equações médias de Reynolds (RANS) a fim de obter uma previsão para a perda de carga ao longo do reator. Ao simular detalhadamente as características do recheio, pretende-se em uma etapa futura incorporar a influência do escoamento externo ao recheio ao reator completo proporcionando, desta forma, uma descrição muito mais pormenorizada do que acontece no recheio deste tipo de reator. Os resultados numéricos obtidos através da simulação com CFD são comparados com a queda de pressão prevista por correlações empíricas.

show abstract

Absorption

Karayiannis

Laso

2018

Kirk-Othmer Encyclopedia of Chemical Technology

View full text Add to dashboard Cite

Absorption, or gas absorption, is a unit operation used in the chemical industry to separate gases by washing or scrubbing a gas mixture with a suitable liquid. One or more of the gas components dissolves or is absorbed in the liquid and is thus removed from the mixture. Absorption is currently one of the most important processes in chemical engineering not only for product recovery but also, and perhaps mainly, for pollutant removal. Intense industrial and academic effort is focused on optimizing the process, in terms process efficiency as well as commercial aspects. In this article, the fundamental principles of gas solubility and mass transfer, design and operation of industrial equipment with relevant examples of typical commercial gas absorption processes are discussed, including recent developments in these areas.

show abstract

Modeling of dry pressure drop for fully developed gas flow in structured packing using CFD simulations

Cited by 63 publications

References 17 publications

Use of Computational Fluid Dynamics for Absorption Packed Column Design

Use of Computational Fluid Dynamics for Absorption Packed Column Design

Avaliação De Modelos De Turbulência Rans Na Previsão Da Perda De Carga Em Reatores De Leito Poroso Preenchido Com Espuma Estruturada Utilizando a Fluidodinâmica Computacional (Cfd).

Absorption

Contact Info

Product

Resources

About