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
Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0140700711002477
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/
Article's DOI: 10.1016/j.ijrefrig.2011.10.003
Entity: Universitat Rovira i Virgili
Journal publication year: 2012
Publication Type: Journal Publications
Repositori URV