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Development of optical digital interferometry for visualizing and modelling the mass diffusion of ammonia in water in an absorption process

  • Datos identificativos

    Identificador: imarina:9229552
    Autores:
    Rives, RonnySalavera, DanielCampos, JuanCoronas, Alberto
    Resumen:
    This study reports the development and implementation of Optical Digital Interferometry for visualizing and modelling mass diffusion in the absorption process of ammonia in water. Absorption experiments were performed at infinite dilution of ammonia and at 293 K, 303 K, and 313 K. The method developed makes it possible to visualize the development of the mass diffusion layer and determine the evolution of concentration profiles in the ammonia/water mixture, providing new spatio-temporal data on the absorption process. A non-equilibrium model based on Fick's Second Law was used to describe the mass diffusion process. It was found that the model can successfully reproduce the experimental profiles of the ammonia concentration. The method developed also allows the simultaneous determination of mass diffusivity and mass transfer coefficients from a single experimental test. The values obtained for the mass diffusivity of ammonia in water vary from 1.54 x 10-9 m2 s-1 at 293.1 K to 2.50 x 10-9 m2 s- 1 at 313.1 K. The relative deviations between the experimental mass diffusivity and literature values did not exceed 6.0%. The mass transfer coefficient ranges from 2.12 x 10-5 m s- 1 at 293.1 K to 4.19 x 10-5 m s- 1 at 313.1 K. The results show the potential of Optical Digital Interferometry for the development and validation of heat and mass transfer models used to design components in absorption refrigeration systems.
  • Otros:

    Autor según el artículo: Rives, Ronny; Salavera, Daniel; Campos, Juan; Coronas, Alberto;
    Departamento: Enginyeria Mecànica
    Autor/es de la URV: Coronas Salcedo, Alberto / Rives Sanz, Ronny / Salavera Muñoz, Daniel
    Palabras clave: Water mixture Water absorption Visualization Simultaneous determinations Optical digital interferometry Non-equilibrium modeling Modelling Mixtures Mass diffusion Marangoni convection Interferometry Heat-transfer Heat and mass transfer models Digital interferometries Diffusion in solids Concentration profiles Coefficients Ammonia/water mixture Ammonia concentrations Ammonia Absorption refrigeration system Absorption refrigeration Absorption experiments
    Resumen: This study reports the development and implementation of Optical Digital Interferometry for visualizing and modelling mass diffusion in the absorption process of ammonia in water. Absorption experiments were performed at infinite dilution of ammonia and at 293 K, 303 K, and 313 K. The method developed makes it possible to visualize the development of the mass diffusion layer and determine the evolution of concentration profiles in the ammonia/water mixture, providing new spatio-temporal data on the absorption process. A non-equilibrium model based on Fick's Second Law was used to describe the mass diffusion process. It was found that the model can successfully reproduce the experimental profiles of the ammonia concentration. The method developed also allows the simultaneous determination of mass diffusivity and mass transfer coefficients from a single experimental test. The values obtained for the mass diffusivity of ammonia in water vary from 1.54 x 10-9 m2 s-1 at 293.1 K to 2.50 x 10-9 m2 s- 1 at 313.1 K. The relative deviations between the experimental mass diffusivity and literature values did not exceed 6.0%. The mass transfer coefficient ranges from 2.12 x 10-5 m s- 1 at 293.1 K to 4.19 x 10-5 m s- 1 at 313.1 K. The results show the potential of Optical Digital Interferometry for the development and validation of heat and mass transfer models used to design components in absorption refrigeration systems.
    Áreas temáticas: Thermodynamics Physics, fluids & plasmas Nuclear energy and engineering Mechanical engineering Materiais General chemical engineering Fluid flow and transfer processes Engineering, mechanical Engenharias iv Engenharias iii Engenharias ii Chemical engineering (miscellaneous) Chemical engineering (all) Astronomia / física Aerospace engineering
    Direcció de correo del autor: alberto.coronas@urv.cat daniel.salavera@urv.cat
    Identificador del autor: 0000-0002-6109-3680 0000-0003-0061-0581
    Fecha de alta del registro: 2024-09-07
    Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
    Enlace a la fuente original: https://www.sciencedirect.com/science/article/abs/pii/S0894177721001539
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Experimental Thermal And Fluid Science. 130
    Referencia de l'ítem segons les normes APA: Rives, Ronny; Salavera, Daniel; Campos, Juan; Coronas, Alberto; (2022). Development of optical digital interferometry for visualizing and modelling the mass diffusion of ammonia in water in an absorption process. Experimental Thermal And Fluid Science, 130(), -. DOI: 10.1016/j.expthermflusci.2021.110509
    DOI del artículo: 10.1016/j.expthermflusci.2021.110509
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2022
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Aerospace Engineering,Chemical Engineering (Miscellaneous),Engineering, Mechanical,Fluid Flow and Transfer Processes,Mechanical Engineering,Nuclear Energy and Engineering,Physics, Fluids & Plasmas,Thermodynamics
    Water mixture
    Water absorption
    Visualization
    Simultaneous determinations
    Optical digital interferometry
    Non-equilibrium modeling
    Modelling
    Mixtures
    Mass diffusion
    Marangoni convection
    Interferometry
    Heat-transfer
    Heat and mass transfer models
    Digital interferometries
    Diffusion in solids
    Concentration profiles
    Coefficients
    Ammonia/water mixture
    Ammonia concentrations
    Ammonia
    Absorption refrigeration system
    Absorption refrigeration
    Absorption experiments
    Thermodynamics
    Physics, fluids & plasmas
    Nuclear energy and engineering
    Mechanical engineering
    Materiais
    General chemical engineering
    Fluid flow and transfer processes
    Engineering, mechanical
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Chemical engineering (miscellaneous)
    Chemical engineering (all)
    Astronomia / física
    Aerospace engineering
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