Degradation of condensation heat transfer on a vertical ...
The proposed degradation factor to account for the effect of a light gas is: (11) f = h s. a. h h s. a = ρ w − ρ b s. a. h ρ w − ρ b s · a 0.323 where subscripts s.a.h and s.a denote the steam–air–helium mixture and steam–air mixture. In calculating the density of the ternary mixture at the wall, the helium-to-noncondensable gas ...
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