In this thesis,film condensation heat transfer is studied for a stagnant saturated vapor on a smooth and enhanced tube,and tube bundles in the presence of a noncondensable gas(air).

• 本文研究有不凝气体（空气）存在情况下，饱和静止蒸气在水平光滑单管，强化管以及管束上的膜状凝结换热问题。