Advanced designs of one of the simplest and reliable heat-exchange apparatuses for processing of various liquid and gaseous environments – heat exchangers "tube-in-tube" are considered. New designs in the majority a case eliminate the main defect of classical heat exchangers "tube-in-tube" – a small surface of a heat transfer. However increase in a heat exchange surface usually significantly complicates production and/or operation (including repair) heat exchangers. Classification of the heat exchange devices "tube-in-tube" is proposed: The following signs are the basis for classification: assembly level, quantity of streams in channels, the design material nature, degree of mobility of heat exchange tubes, existence of vortex generators in channels, a form of external and/or internal tubes. The critical analysis of the most characteristic designs of the heat exchangers "tube-in-tube" developed by domestic and foreign designers and inventors is made. Bibl. 17, Fig. 21.
Development of Compact Heat Exchangers According to the Results Study of the Regularities of Heat Exchange Enhancement Energy Saving
