Characteristics of heat and mass transfer in vapor absorption of falling film flow on a horizontal tube

A critical review of heat and mass transfer correlations for LiBr-H 2 O and NH 3 -H 2 O absorption refrigeration machines using falling liquid film technology

“…Analytical and numerical works using lithium bromide: configuration of study Babadi and Farhanieh [59] Horizontal tube D ¼ 20 Â 10 À3 m Method: finite difference method. Assumes the total wettability of the tube Jani et al [30] Tube…”

Irreversibility analysis of falling film absorption over a cooled horizontal tube

“…8. Body fitted coordinates (x along the tube surface and y normal to it at any point) are used because the film thickness is small if compared to the tube circumference [5].…”

“…(5) and (6), respectively in the circumferential and radial directions) and is parallel to that of [12].…”

“…However, the attempt to experimentally and theoretically describe the complex heat and mass transfer mechanism occurring inside these devices is still incomplete and has not led to conclusive approaches. In terms of modelling efforts, [1][2][3][4][5] presented simplified models for falling film absorption of water vapour over a horizontal tube. Similarly, they solved the problem with a finite difference method and studied the effect of different parameters on the coupled heat and mass transfer processes.…”

Mathematical modelling of a LiBr–H2O absorption chiller including two-dimensional distributions of temperature and concentration fields for heat and mass exchangers

“…The driving force for mass transfer DW ¼ ðW eq À WÞ is identified as a mass ratio difference between the external surface of the solution film and solution film interior (radial distribution of LiBr concentration is assumed uniform except the mass transfer layer [9], modelled by using the mass transfer coefficient [2,3,13], see Figs. 3 and 4).…”