A HEAT EXCHANGER

The invention relates to a heat exchanger (1) comprising a heat input section (2) and a heat output section (3a-b). The heat input section (2) and the heat output section (3a-b) containing a working fluid (5) in a plurality of channels (4). The plurality of channels (4) providing a flow path for the working fluid (5) to move between the heat input section (2) and the heat output section (3a-b). The plurality of channels (4) being capillary dimensioned for the working fluid (5). The heat output section (3a-b) comprises a cooling liquid chamber (6) and an inlet (7) and an outlet (8) for cooling liquid (10). The heat exchanger (1) comprises two heat output sections (3a-b) arranged on the first end (9a) and the second end (9b) of the heat input section (2). The plurality of channels (4) extend from the first heat output section (3a) through the heat input section (2) to the second heat output section (3b).