scholarly journals Effects of Falling Liquid Film Concentration on Heat and Mass Transfer in Ammonia Gas Absorption

2012 ◽  
Vol 47 (5) ◽  
pp. 735-741
Author(s):  
Norihiro Inoue ◽  
Hisaya Omote ◽  
Kazuhide Watanabe
Keyword(s):  
Mass Transfer ◽  
Liquid Film ◽  
Heat And Mass Transfer ◽  
Gas Absorption ◽  
Ammonia Gas ◽  
Falling Liquid Film

scholarly journals Modeling of conjugated heat and mass transfer in the entrance region of falling liquid film at various values of the Froude number

2018 ◽  
Vol 194 ◽  
pp. 01007
Author(s):  
Maria V. Bartashevich
Keyword(s):  
Heat Transfer ◽  
Mass Transfer ◽  
Liquid Film ◽  
Froude Number ◽  
Heat And Mass Transfer ◽  
Water Solution ◽  
Lithium Bromide ◽  
Entrance Region ◽  
Falling Film ◽  
Falling Liquid Film

Mathematical model of conjugated heat and mass transfer in absorption on the entrance region of the semi-infinite liquid film of lithium bromide water solution is investigated for different values of Froude number. The calculations shown that larger values of Froude number corresponds to a smaller thickness of the falling film. It was demonstrated that for large values of the Froude number the heat transfer from the surface is greater than for smaller values.

Analogy-Based Evaluation of Heat and Mass Transfer Characteristics in a Falling Liquid Film along a Vertical Absorber with Spirally Wound Fir-Finned Tube

2006 ◽  
Vol 32 (1) ◽  
pp. 48-58 ◽  
Author(s):  
Kazushige Nakao ◽  
Eiichi Ozaki ◽  
Tsuneo Yumikura ◽  
Masaki Ikeuchi ◽  
Goro Yamanaka ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Liquid Film ◽  
Heat And Mass Transfer ◽  
Finned Tube ◽  
Transfer Characteristics ◽  
Falling Liquid Film

scholarly journals Second Law Analysis of a Gas-Liquid Absorption Film

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Nejib Hidouri ◽  
Imen Chermiti ◽  
Ammar Ben Brahim
Keyword(s):  
Mass Transfer ◽  
Film Thickness ◽  
Liquid Film ◽  
Heat And Mass Transfer ◽  
Entropy Generation ◽  
Gas Absorption ◽  
Heat Transfer Fluid ◽  
Second Law ◽  
Coupling Effects ◽  
Liquid Absorption

This paper reports an analytical study of the second law in the case of gas absorption into a laminar falling viscous incompressible liquid film. Velocity, temperature, and concentration profiles are determined and used for the entropy generation calculation. Irreversibilities due to heat transfer, fluid friction, and coupling effects between heat and mass transfer are derived. The obtained results show that entropy generation is mainly due to coupling effects between heat and mass transfer near the gas-liquid interface. Total irreversibility is minimum at the diffusion film thickness. On approaching the liquid film thickness, entropy generation is mainly due to viscous irreversibility.

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