Cooling apparatus for cooling a fluid by means of surface water

A cooling apparatus for cooling a fluid by means of surface water, comprising:

• a plurality of tubes for containing and transporting the fluid to be cooled in their interior, the tubes being intended to be at least partially exposed to the surface water during operation of the cooling apparatus, and
• a plurality of light sources for producing light that hinders fouling of the exterior of the tubes, the light sources being dimensioned and positioned with respect to the tubes so as to cast anti-fouling light over the exterior of the tubes,
• wherein the light sources have a generally elongated shape,
• wherein the light sources are arranged in at least two mutually different orientations in the cooling apparatus, and
• wherein at least a part of the cooling apparatus has a layered structure in which the tubes are arranged in tube layers, each tube layer including at least one tube, wherein light sources of a first group of the light sources are arranged in an orientation for intersecting at least two adjacent tube layers, and wherein light sources of a second group of the light sources are arranged between at least one pair of two adjacent tube layers without intersecting the at least one pair of two adjacent tube layers.