Gas Absorption Into Wavy and Turbulent Falling Liquid Films in a Wetted-Wall Column

Texture influence on liquid-side mass transfer

“…Fitting the mass transfer results for silicone oil with well established semi-empirical correlations derived for water in the form Sh = a Re b Sc 0.5 (Yih and Chen, 1982;Kraume, 2004) it can be seen that experimentally determined Sh for all used silicone oils are in the same range despite different Re (Kohrt et al, in press). The reasons for this disagreement may be founded in the big differences of surface tension between water and silicone oil.…”

“…to different liquid properties, countercurrent flow and wave characteristics (Won and Mills, 1982;Yih and Chen, 1982;Alekseenko et al, 1994;Roberts and Chang, 2000;Park and Nosoko, 2003;Yu et al, 2006;Xu et al, 2008;Paschke et al, 2009), but mass transfer experiments for film flow on grooved surfaces are published less often.…”

“…This assumption is reasonable for the flat plate due to the fact that the low surface tension and contact angle of silicone oil ensures complete wetting in the operating range. In fact, the occurring waves increase the gas liquid interface only by a few percent (Yih and Chen, 1982). …”

Analysis of a counter-current vapor flow absorber

“…Yih and Chen [19] developed the liquid-side mass transfer correlations for laminar, wavy and turbulent falling films. Their model was based on the motion of eddies near the liquid-vapor interface, and the values of constants were obtained by fitting their own experimental data and data provided by ten other researchers.…”

Modeling heat and mass transfer in wavy and turbulent falling liquid films

“…Assuming Hikita et al [18] Banerjee et al [19] Johannisbauer [20] Lamourelle and Sandal1 [7] Carrubba [21] 1,600 < Re 30 < Re < 150 150<Re< 2,000 340 < Re < 10,900 60 < Re < 300 300<Re< 1,600 1,600 < Re < 10,800 1,300 < Re < 8,300 48 < Re < 280 48 < Re < 280 280<Re< 1,600 280<Re< 1,600 1,600 < Re 1,600 < Re Bakopoulos [22] same as Carrubba except that at t,600 < Re and for Sc > 4.59 [23] 170 < Re < 335 1.668 335 < Re < 1,080 3.882 1,080 < Re < 2,513 0.0008923 Yih and Chen [24] 49 < Re < 300 0.01099 300 < Re < 1,600 0.02995 1,600 < Re < 10,500 0.0009777 (14)- (18), (5) and (7) …”