Author, as appears in the article.: Taboas, Francisco; Bourouis, Mahmoud; Valles, Manel
Department: Enginyeria Mecànica
URV's Author/s: Bourouis Chebata, Mahmoud / Vallès Rasquera, Joan Manel
Keywords: Plate heat exchanger Lithium nitrate Flow boiling Ammonia Absorption refrigeration
Abstract: This paper presents the experiments carried out to determine the flow boiling heat transfer coefficient and associated frictional pressure drop in a plate heat exchanger which uses the binary fluid mixture ammonia/lithium nitrate and the ternary fluid mixture ammonia/(lithium nitrate þ water) with a water content in the absorbent of 20% by weight. The effects on the flow boiling heat transfer coefficient and two phase frictional pressure drop are analysed with a heat flux range of 5e20 kW m2, a mass flux of 50 e100 kg m2 s1 and a mean vapour quality of 0e0.2. The mass flux greatly influenced the flow boiling heat transfer coefficient, whereas the addition of water only produced a slight increase. The measurements taken experimentally indicated that the parameters with a pronounced effect on the frictional pressure drop were vapour quality followed by mass flux. Finally, the correlations proposed in Taboas et al. [1] used to predict the flow boiling heat transfer coefficient and frictional pressure drop were well in agreement with the experimental results.
Thematic Areas: Thermodynamics Matemática / probabilidade e estatística Interdisciplinar General engineering Engineering, mechanical Engineering (miscellaneous) Engineering (all) Engenharias iii Engenharias ii Engenharias i Condensed matter physics Ciências ambientais Astronomia / física Arquitetura e urbanismo
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: mahmoud.bourouis@urv.cat manel.valles@urv.cat
Author identifier: 0000-0003-2476-5967 0000-0002-0748-1287
Record's date: 2024-09-07
Papper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S129007291600051X
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: International Journal Of Thermal Sciences. 105 182-194
APA: Taboas, Francisco; Bourouis, Mahmoud; Valles, Manel (2016). Boiling heat transfer and pressure drop of NH3/LiNO3 and NH3/(LiNO3 þ H2O) in a plate heat exchanger. International Journal Of Thermal Sciences, 105(), 182-194. DOI: 10.1016/j.ijthermalsci.2016.02.003
Article's DOI: 10.1016/j.ijthermalsci.2016.02.003
Entity: Universitat Rovira i Virgili
Journal publication year: 2016
Publication Type: Journal Publications