Articles producció científica> Enginyeria Mecànica

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

  • Dades identificatives

    Identificador: imarina:5127574
    Handle: https://hdl.handle.net/20.500.11797/imarina5127574
    Autors:
    Benhmidene, AliChaouachi, BechirBourouis, MahmoudGabsi, Slimane
    Resum:
    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.

  • Altres:

    Autor segons l'article: Benhmidene, Ali; Chaouachi, Bechir; Bourouis, Mahmoud; Gabsi, Slimane
    Departament: Enginyeria Mecànica
    Autor/s de la URV: Bourouis Chebata, Mahmoud
    Paraules clau: Simulation Operating conditions Heat flux Bubble pump Awo-fluid model
    Resum: 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.
    Àrees temàtiques: Thermodynamics Renewable energy, sustainability and the environment Interdisciplinar Engenharias iii Engenharias ii Astronomia / física
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 03549836
    Adreça de correu electrònic de l'autor: mahmoud.bourouis@urv.cat
    Identificador de l'autor: 0000-0003-2476-5967
    Data d'alta del registre: 2023-05-13
    Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
    Referència a l'article segons font original: Thermal Science. 15 (3): 793-806
    Referència de l'ítem segons les normes 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
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2011
    Tipus de publicació: Journal Publications

  • Paraules clau:

    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

  • Documents:

    DocumentPrincipal

  • Cerca a google

    Search to google scholar