|
Title:
|
Simulaton of absorption of H2O in falling film of LiBr aqueous in vertical tubes in wavy regime
|
|
Author:
|
García-Rivera, Eduardo; Castro González, Jesús; Farnós Baulenas, Joan; Oliva Llena, Asensio
|
|
Other authors:
|
Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics; Universitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor |
|
Abstract:
|
A mathematical model of falling film absorption of H2O by LiBr aqueous solutions which considers
wavy regimes has been implemented. The model is semi-empirical, based on Navier Stokes
equations together with energy and mass species simplified under the boundary layer hypotheses.
The coupled equations are solved by means of finite difference method in a step by step procedure.
The wavy profile is introduced by solving Free Surface Deflection Equation in each grid step, the
smooth film thickness is recalculated in function of the amplitude value of the wave profile and the
mass absorbed. In order to validate the model developed, a comparison is performed with a simple
model based on empirical information for heat and mass transfer coefficients for laminar smooth a
wavy regimes. Numerical results are compared between smooth thickness film and wavy profile. |
|
Abstract:
|
Peer Reviewed |
|
Subject(s):
|
-Àrees temàtiques de la UPC::Física::Termodinàmica
-Steam
-Absorption--Mathematical models
-Vapor -- Absorció
-Absorció -- Models matemàtics |
|
Rights:
|
|
|
Document type:
|
Article - Published version
Conference Object |
|
Share:
|
|
