Articles producció científica> Enginyeria Mecànica

Assessment of boiling heat transfer and pressure drop correlations of ammonia/water mixture in a plate heat exchanger

  • Identification data

    Identifier: imarina:5125403
    Handle: https://hdl.handle.net/20.500.11797/imarina5125403
    Authors:
    Taboas, FranciscoValles, ManelBourouis, MahmoudCoronas, Alberto
    Abstract:
    Plate heat exchangers are gaining acceptance in absorption refrigeration systems due to their high transfer rates, compactness, and low refrigerant charge. Nevertheless, boiling heat transfer and pressure drop studies with mixtures in plate heat exchangers (PHEs) are scarce. In this study, the experimental data of Táboas et al. (2010) on flow boiling of ammonia/water in a plate heat exchanger are compared with the predicted values using the correlations available in the open literature for the boiling heat transfer coefficient and pressure drop. In addition, this study proposes a new correlation based on a separate model by which to obtain the boiling coefficient. The new correlation uses a transition criterion, divided into an apparent nucleate boiling region where pure convective boiling cannot appear, and a region with competition between convective and apparent nucleate boiling. The correlation proposed can predict 98% of data from Táboas et al. (2010) within 20% error.

  • Others:

    Author, as appears in the article.: Taboas, Francisco; Valles, Manel; Bourouis, Mahmoud; Coronas, Alberto
    Department: Enginyeria Mecànica
    URV's Author/s: Bourouis Chebata, Mahmoud / Coronas Salcedo, Alberto / Vallès Rasquera, Joan Manel
    Keywords: Pressure drop Plate exchanger Heat transfer Boiling Ammonia-water Absorption cycle
    Abstract: Plate heat exchangers are gaining acceptance in absorption refrigeration systems due to their high transfer rates, compactness, and low refrigerant charge. Nevertheless, boiling heat transfer and pressure drop studies with mixtures in plate heat exchangers (PHEs) are scarce. In this study, the experimental data of Táboas et al. (2010) on flow boiling of ammonia/water in a plate heat exchanger are compared with the predicted values using the correlations available in the open literature for the boiling heat transfer coefficient and pressure drop. In addition, this study proposes a new correlation based on a separate model by which to obtain the boiling coefficient. The new correlation uses a transition criterion, divided into an apparent nucleate boiling region where pure convective boiling cannot appear, and a region with competition between convective and apparent nucleate boiling. The correlation proposed can predict 98% of data from Táboas et al. (2010) within 20% error.
    Thematic Areas: Thermodynamics Química Mechanical engineering Materiais Interdisciplinar Engineering, mechanical Engenharias iv Engenharias iii Engenharias ii Ciência de alimentos Building and construction Astronomia / física
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: alberto.coronas@urv.cat manel.valles@urv.cat mahmoud.bourouis@urv.cat
    Author identifier: 0000-0002-6109-3680 0000-0002-0748-1287 0000-0003-2476-5967
    Record's date: 2023-05-21
    Papper version: info:eu-repo/semantics/acceptedVersion
    Papper original source: International Journal Of Refrigeration-Revue Internationale Du Froid. 35 (3): 633-644
    APA: Taboas, Francisco; Valles, Manel; Bourouis, Mahmoud; Coronas, Alberto (2012). Assessment of boiling heat transfer and pressure drop correlations of ammonia/water mixture in a plate heat exchanger. International Journal Of Refrigeration-Revue Internationale Du Froid, 35(3), 633-644. DOI: 10.1016/j.ijrefrig.2011.10.003
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2012
    Publication Type: Journal Publications

  • Keywords:

    Building and Construction,Engineering, Mechanical,Mechanical Engineering,Thermodynamics
    Pressure drop
    Plate exchanger
    Heat transfer
    Boiling
    Ammonia-water
    Absorption cycle
    Thermodynamics
    Química
    Mechanical engineering
    Materiais
    Interdisciplinar
    Engineering, mechanical
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Ciência de alimentos
    Building and construction
    Astronomia / física

  • Documents:

    DocumentPrincipal

  • Cerca a google

    Search to google scholar