ICAME 2021, İstanbul, Turkey, 20 - 22 October 2021, pp.1547
In this study, a brief review of the studies in the literature conducted for boiling in double-pipe heat exchangers at horizontal, vertical and different angles of inclination is presented. There are lots of studies in the literature for optimum heat transfer performance in double-pipe heat exchangers. Although there are many theoretical and experimental studies on double-pipe heat exchangers that involves with single and/or two-phase flow studies, almost all of them investigated the horizontal or vertical positions of the testing section. In addition, although there are studies conducted with enhanced (corrugated inner surface, micro-finned, insert, curved, etc.) tubes in the literature, the effect of inclination angle on heat transfer and pressure drop was not taken into account in most of these studies. Therefore, within the scope of this study, a summary has been done on the basis of boiling in inclined double-pipe heat exchangers with smooth and corrugated inner surface using different refrigerants.