An investigation of condensation from steam-gas mixtures flowing downward inside a vertical tube

Review of vapor condensation heat and mass transfer in the presence of non-condensable gas

“…They considered the features of NCG accumulation, coupled cooling water heat transfer, and simulated the condenser tube inside and outside (in particular, the mass fraction distribution of the vapor caused by NCG accumulation near the liquidegas interface). The model was validated using the data reported by Ambrosini et al [153] and Kuhn et al [107]. Fig.…”

“…Kuhn [97] experimentally studied FWC in presence of air/helium inside a vertical tube and developed the degradation factor correlation with the function of the ratio of film thickness of FWC in the presence of NCG to pure steam, using the Reynolds number of film thickness and mass fraction of NCG. After, Kuhn [107] built a small but accurate experimental device to measure the local heat flux and compiled a lot of FWC heat transfer data for pure steam, air-steam mixed gas, and helium-steam mixed gas that have been referenced by multiple researchers.…”

“…After, Kuhn [107] built a small but accurate experimental device to measure the local heat flux and compiled a lot of FWC heat transfer data for pure steam, air-steam mixed gas, and helium-steam mixed gas that have been referenced by multiple researchers. He compared the threeparameter model, the degradation factor method, the diffusion layer theory, and the mass transfer conductance model to the experiment data.…”

Experimental investigation on steam flow condensation in the presence of noncondensable gas inside horizontal multi-head spiral channels

“…Park and No [3] performed a condensation experiment in the presence of NC in a vertical tube of a passive containment cooling system, and the local coolant bulk temperatures were calculated numerically by measuring temperatures at the inner and outer walls of the annulus; however, this method required extra effort to perform the numerical calculations and the data reduction process was quite complicated. Kuhn et al [4] investigated the condensation from steam-gas mixtures flowing downward inside a vertical tube, where a new and more accurate method in measuring the coolant bulk temperature along the tube was presented. Kim and No [5] performed experimental studies on the turbulent film condensation of high pressure steam in a http://dx.doi.org/10.1016/j.expthermflusci.2015.08.023 0894-1777/Ó 2015 Elsevier Inc. All rights reserved.…”

Condensation of a hydrocarbon in the presence of a non-condensable gas: Heat and mass transfer

“…Kuhn et al [12] obtained a large amount of experimental data of local heat transfer for condensation in the presence of non-condensable gas inside a vertical tube. Authors presented three different correlations, implementing the degradation factor method, diffusion layer theory, and the mass transfer conductance model.…”