Enhancement of condensation heat transfer by means of passive and active condensate drainage techniques

A short state-of-the-art review on the passive and active enhancement of condensation heat transfer techniques developed recently is presented in the paper. The particular attention is paid to the methods involving the augmentation of the condensate drainage. As an example of the passive technique the method of condensate drainage enhancement by using the drainage strip is presented. For an active method of heat transfer enhancement a novel EHD technique is described. For both methods the own experimental results as well as theoretical models are provided.