Articles producció científica> Enginyeria Mecànica

Effect of operating conditions on the performance of the bubble pump of absorption-diffusion refrigeration cycles

  • Identification data

    Identifier: imarina:5127574
    Handle: https://hdl.handle.net/20.500.11797/imarina5127574
    Authors:
    Benhmidene, AliChaouachi, BechirBourouis, MahmoudGabsi, Slimane
    Abstract:
    The mathematical model will be able to predict the operated condition (required tube diameters, heat input. and submergence ratio....). That will result in a successful bubble pump design and hence a refrigeration unit In the present work a one-dimensional two-fluid model of boiling mixing ammonia-water under constant heat flux is developed. The present model is used to predict the outlet liquid and vapor velocities and pumping ratio for different heat flux input to pump. The influence of operated conditions such as: ammonia fraction in inlet solution and tube diameter on the functioning of the bubble pump is presented and discussed. It was found that, the liquid velocity and pumping ratio increase with increasing heat flux, and then it decreases. Optimal heat flux depends namely on tube diameter variations. Vapor velocity increases linearly with increasing heat flux under designed conditions.

  • Others:

    Author, as appears in the article.: Benhmidene, Ali; Chaouachi, Bechir; Bourouis, Mahmoud; Gabsi, Slimane
    Department: Enginyeria Mecànica
    URV's Author/s: Bourouis Chebata, Mahmoud
    Keywords: Simulation Operating conditions Heat flux Bubble pump Awo-fluid model
    Abstract: The mathematical model will be able to predict the operated condition (required tube diameters, heat input. and submergence ratio....). That will result in a successful bubble pump design and hence a refrigeration unit In the present work a one-dimensional two-fluid model of boiling mixing ammonia-water under constant heat flux is developed. The present model is used to predict the outlet liquid and vapor velocities and pumping ratio for different heat flux input to pump. The influence of operated conditions such as: ammonia fraction in inlet solution and tube diameter on the functioning of the bubble pump is presented and discussed. It was found that, the liquid velocity and pumping ratio increase with increasing heat flux, and then it decreases. Optimal heat flux depends namely on tube diameter variations. Vapor velocity increases linearly with increasing heat flux under designed conditions.
    Thematic Areas: Thermodynamics Renewable energy, sustainability and the environment Interdisciplinar Engenharias iii Engenharias ii Astronomia / física
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 03549836
    Author's mail: mahmoud.bourouis@urv.cat
    Author identifier: 0000-0003-2476-5967
    Record's date: 2023-05-13
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: http://www.doiserbia.nb.rs/Article.aspx?ID=0354-98361100002B#.X3bem2gzY2w
    Papper original source: Thermal Science. 15 (3): 793-806
    APA: Benhmidene, Ali; Chaouachi, Bechir; Bourouis, Mahmoud; Gabsi, Slimane (2011). Effect of operating conditions on the performance of the bubble pump of absorption-diffusion refrigeration cycles. Thermal Science, 15(3), 793-806. DOI: 10.2298/TSCI100601002B
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Article's DOI: 10.2298/TSCI100601002B
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2011
    Publication Type: Journal Publications

  • Keywords:

    Renewable Energy, Sustainability and the Environment,Thermodynamics
    Simulation
    Operating conditions
    Heat flux
    Bubble pump
    Awo-fluid model
    Thermodynamics
    Renewable energy, sustainability and the environment
    Interdisciplinar
    Engenharias iii
    Engenharias ii
    Astronomia / física

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