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

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

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

Article's DOI: 10.2298/TSCI100601002B

Entity: Universitat Rovira i Virgili

Journal publication year: 2011

Publication Type: Journal Publications