Turbulent film condensation in a vertical tube in presence of non condensable gas
Journal: Journal of Advances in Physics (Vol.6, No. 3)Publication Date: 2014-12-09
Authors : Belgassmi Youssef; K. Gueraoui; N. Hassanain; A. Elbouzidi;
Page : 1282-1290
Keywords : Condensation; Heat and mass transfers; mixed convection; turbulent flow; Vertical tube; Methanol vapour.;
- Turbulent film condensation in a vertical tube in presence of non condensable gas
- Film Condensation Behaviour of Steam on Isothermal Walls in Presence of Non-Condensable Gases -A Numerical Investigation
- Effect of Porous Layer on the Condensation of Falling Liquid Film on a Vertical Channel
- TURBULENT CONVECTIVE HEAT TRANSFER OF GRAPHENE OXIDE NANOFLUID THROUGH HORIZONTAL TUBE
- DISPERSED MIXTURE FLOW IN A CHANNEL WITH A SUDDEN ENLARGEMENT IN PRESENCE OF THE COAGULATION AND CONDENSATION PROCESSES
Abstract
This paper presents the simulation of the condensation of methanol vapour in the presence of non-condensable gas in turbulent flows in a vertical tube. The liquid and gas stream are approached by two coupled turbulent boundary layer. For solving the coupled governing equations for liquid film and gas flow together with the interfacial matching conditions an implicit finite difference method is employed. The effect of the influencing parameters are studied so the effect of inlet Reynolds number, the effect of temperature gradient, mass fraction are illustrated. The numerical results demonstrate that an important concentration of no-condensable gas reduces the heat transfer coefficient and film thickness considerably. The local heat flux and film thickness increase as tube surface temperature decreases at any bulk concentration of non-condensable gas. Moreover, inlet velocity increases as film thickness decreases and heat flux increases.
Other Latest Articles
- Image comparisons among analysis, simulation and experimental solutions about stress distribution in rings loaded by multiple symmetrical radial forces
- Search of Astrophysical results with LIGO from the Science runs S1 to S5
- Boson peak and nanostructure of chalcogenide glass-like semiconductors
- Theoretical Determination of Level Spins of Superdeformed Bands for Nuclei in the Mass Region A = 80 ? 104
- Broad Band Electromagnetic Interference (EMI) Shielding Properties of Polyaniline/ Polyvinyl Alcohal/ Fly Ash/ MnO2 Free Standing Films
Last modified: 2015-01-17 16:43:48