Abstract: A heat exchanger for transferring heat between two fluids with different temperature includes a first heat exchange element having at least one core extending longitudinally through the heat exchange element. The at least one core defines a core cavity that is configured with an inlet port and an outlet port to receive a first fluid flowing therethrough. The heat exchange element includes ribs extending continuously substantially in parallel with the at least one core along the whole length of the core. The ribs extend radially outwardly from the core and are exposed to contact with a second fluid that flows along said ribs. Each rib is divided into at least two radially extending fins at a radial distance from the core. Each fin extends to a proximity of an outer casing surrounding the first heat exchanger element or a proximity of fins of an adjacent heat exchanger element.

Abstract: The invention relates to a heat exchanger for transferring heat between two fluids with different temperature, said heat exchanger comprises a first heat exchange element (10, 11), said first heat exchange element (10, 11) having at least one core (20, 21) extending longitudinally through the heat exchange element, said at least one core (20, 21) defining a core cavity, said cavity being configured with an inlet port 22a and an outlet port 22b to receive a first fluid flowing there through, said heat exchange element (10, 11) having ribs (30) extending continuously substantially in parallel with the at least one core (20, 21) along the whole length of said core (20, 21), said ribs (30) extending radially outwardly from the core (20, 21) and being exposed to contact with a second fluid, flowing along said ribs (30).