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: Plate exchanger Heat transfer Heat exchanger Experiment Boiling Ammonia-water Absorption system
Abstract: The objective of this work is to contribute to the development of plate heat exchangers as desorbers for ammonia/water absorption refrigeration machines driven by waste heat or solar energy. In this study, saturated flow boiling heat transfer and the associated frictional pressure drop of ammonia/water mixture flowing in a vertical plate heat exchanger is experimentally investigated. Experimental data is presented to show the effects of heat flux between 20 and 50 kW m-2, mass flux between 70 and 140 kg m-2 s-1, mean vapour quality from 0.0 to 0.22 and pressure between 7 and 15 bar, for ammonia concentration between 0.42 and 0.62. The results show that for the selected operating conditions, the boiling heat transfer coefficient is highly dependent on the mass flux, whereas the influence of heat flux and pressure are negligible mainly at higher vapour qualities. The pressure drop increases with increasing mass flux and quality. However, the pressure drop is independent of the imposed heat flux. © 2009 Elsevier Ltd and IIR.
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
Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0140700709002825
Papper original source: International Journal Of Refrigeration-Revue Internationale Du Froid. 33 (4): 695-705
APA: Taboas, Francisco; Valles, Manel; Bourouis, Mahmoud; Coronas, Alberto (2010). Flow boiling heat transfer of ammonia/water mixture in a plate heat exchanger. International Journal Of Refrigeration-Revue Internationale Du Froid, 33(4), 695-705. DOI: 10.1016/j.ijrefrig.2009.12.005
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Article's DOI: 10.1016/j.ijrefrig.2009.12.005
Entity: Universitat Rovira i Virgili
Journal publication year: 2010
Publication Type: Journal Publications
Repositori URV