Turbulent film condensation in a vertical tube in presence of non condensable gas
Journal Title: JOURNAL OF ADVANCES IN PHYSICS - Year 0, Vol 6, Issue 3
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.
Authors and Affiliations
Belgassmi Youssef, K. Gueraoui, N. Hassanain, A. Elbouzidi
Keywords
Related Articles
- EP ID EP653596
- DOI 10.24297/jap.v6i3.1775
- Views 81
- Downloads 0
Adaptive Statistical Iterative Reconstructions Technique (ASIR) Impact on Both Image Quality and Dose in CT Chest Examination
The main objective of the presented study was to estimate the influence of Adaptive Statistical Iterative Reconstruction (ASIR) algorithm on image and dose Image Quality in Chest CT (Computed tomography) examination comp...
ZnS/Cu2ZnSnS4/CdTe/In Thin Film Structure for Solar Cells
A solar cell with glass/ITO/ZnS/Cu2ZnSnS4/CdTe/In structure has been fabricated using all-electrodeposited ZnS, Cu2ZnSnS4 and CdTe thin films. The three semiconductor layers were electrodeposited using a two-electrode sy...
Metallographic study of Sn-Bi-Sb-In alloy prepared by rapid solidification
Sn70-X at.% -Bi15 at.% -Sb15 at.%- Inx at.% alloy ribbons were produced using melt-spinning technique. The surfaces were characterized with Optical Microscopy. Also, scanning electron microscopy combined with energ...
Entanglement Explained by Sequencing Satisfies Lack of Trajectory and The Holographic Principle
The implications of entanglement have scared many, but if we use all we understand about existence sequencing is probably the answer given probable experiments that we should have the technology to do within the next 5 y...
Discrete Time Flowing and A Contradiction to Einsteins Assumptions
Due to the limited velocity of light, there is a time duration to propagate a light ray between any two distinct spacetime points in the universe. Upon that argument, authors attempt is to obtain a very specific result t...