Abstract: The present disclosure generally relates to a heat exchanger (50) and a heat exchange unit (100) for the heat exchanger (50). The heat exchange unit (100) comprises: a plurality of plain fins (102) stacked perpendicularly to a first plane, such that a first fluid (104) is communicable through the first plane between the fins (102); and a plurality of tubes (112) for communicating a second fluid (110) therethrough for heat exchange with the first fluid (104), the tubes (112) extending perpendicularly through the fins (102), each tube (112) comprising an oblique cross-section (114) having a pair of opposing first sides (114a) and a pair of opposing second sides (114b). For each oblique cross-section (114), the first sides (114a) are perpendicular to the first plane and the second sides (114b) are angled approximately 60° to the first plane, the first sides (114a) being longer than the second sides (114b).

Abstract: The present disclosure generally relates to a heat exchanger (50) and a heat exchange unit (100) for the heat exchanger (50). The heat exchange unit (100) comprises: a plurality of plain fins (102) stacked perpendicularly to a first plane, such that a first fluid (104) is communicable through the first plane between the fins (102); and a plurality of tubes (112) for communicating a second fluid (110) therethrough for heat exchange with the first fluid (104), the tubes (112) extending perpendicularly through the fins (102), each tube (112) comprising an oblique cross-section (114) having a pair of opposing first sides (114a) and a pair of opposing second sides (114b). For each oblique cross-section (114), the first sides (114a) are perpendicular to the first plane and the second sides (114b) are angled approximately 60° to the first plane, the first sides (114a) being longer than the second sides (114b).