HEAT EXCHANGER WITH IMPROVED THERMAL EFFICIENCY

摘要

A heat exchanger (1) with improved thermal efficiency comprising a container body (2) crossed by a forced flow of hot fluid (7) and at least one coiled duct (3) crossed internally by at least one fluid to be heated (6), the coiled duct (3) being accommodated inside the container body (2) and being struck by the hot fluid (7) in order to heat the fluid to be heated (6), the heat exchanger comprising a plurality of fms (30) which are formed on the outer surface of the coiled duct (3) and which run substantially along the entire longitudinal length of the coiled duct (3) in order to guide the hot fluid (7) along the coiled duct (3) so as to increase the heat exchange between the hot fluid (7) and the fluid to be heated (6).