Heat and mass transfer during droplet condensation of water vapor from a stream of rarefied humid air in narrow rectangular channels

A numerical study of boundary-layer heat and mass transfer in a forced flow of humid air with surface steam condensation

“…For instance, the data of [1][2][3] show the heat-and mass-transfer processes to be similar with the criterial relations for them being identical to the regularities observed for flows without phase transitions. On the other hand, the data of [4,5] show the analogy to be violated, the heat-transfer rate being well in excess of that in the case of a flow over a ''dry wall''.…”

“…Prandtl number, v=a r phase-transition heat (J/kg) q k , q dif , q R , q H , q j , q w wall heat flux components defined by formulas (3,4,5) and (11) (3) and (4)) s friction rate…”

Convective condensation of vapor in the presence of a non-condensable gas of high concentration in laminar flow in a vertical pipe

“…They observed an increase in condensation heat transfer with an increase in the relative humidity and velocity of the air. Smol'skii et al [25] and Novikov and Shcherbakov [26] conducted experiments to find heat and mass transfer during condensation of water vapor from humid air in narrow channels. Smol'skii et al [27] performed experiments and found that, the pressure drop during condensation of vapor from humid air is much higher than that in a one-phase stream.…”