An investigation of compounds promoting the dropwise condensation of steam

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Abstract
The modes of condensation of steam on a cooled metal surface are discussed, and an apparatus for studying them is described. With this the effect of a number of promoters of dropwise condensation has been studied. Conclusions are drawn concerning the relation between the activity and chemical constitution of promoters. Active promoters have in the molecule an unhindered hydrocarbon chain which confers water‐repellency on the compound and an ‘anchoring’ group which is usually a divalent sulphur atom.

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