Abstract: A heat exchanger comprising at least one fluid tube configured to extend substantially orthogonally to a wind direction, the fluid tube having a first wall and a second wall, and the fluid tube comprising: a first tube section and a second tube section each extending along the fluid tube, arranged such that each tube section is in fluid communication with a pair of manifolds and configured to contain a cooling fluid, wherein the first tube section is formed by the first wall, the second wall, a first outer wall and a first inner wall and the second tube section is formed by the first wall, the second wall, a second outer wall and a second inner wall, the first inner wall, the second inner wall, the first outer wall and the second outer wall extending substantially parallel along the fluid tube in fluid-tight contact with the first wall and the second wall, wherein the heat exchanger is configured to lead the cooling fluid in a first direction in the first tube section and in a second direction in the second t

Abstract: An integrally supported cooling device for mounting to a wind turbine nacelle having a first face with a longitudinal extension in a wind direction. The cooling device has at least one heat exchanger core configured to extend across the wind direction and to define a cooling area of the cooling device, the heat exchanger core having a first side and a second side arranged opposite the first side in relation to the heat exchanger core, a first manifold being arranged along the first side and a second manifold being arranged along the second side, each in fluid communication with the at least one heat exchanger core. The pair of manifolds extend parallel along the cooling area, whereby the second manifold has a suspension and the cooling device is configured to be mounted to the wind turbine nacelle by suspension of the second manifold to the first face of the wind turbine nacelle via the suspension.