Abstract: The invention relates to a heat exchanger cooled by air (1) comprising a plurality of ventilation modules (104) arranged in several parallel rows, adjacent to one another and placed in the same horizontal plane to form a ventilation structure (100) which is spaced from the ground (S) so as to promote circulation of air under the ventilation structure. Each ventilation module comprises a fan (106) directed to suction air present below the ventilation structure and blow it vertically through heat exchange elements (204). The exchanger further comprises at least one rigid panel (300) forming a windscreen which extends vertically from a lateral edge of the ventilation structure to the ground at a height (h) between 5 and 50% of the distance separating the ventilation structure from the ground.

Abstract: The invention relates to a heat exchanger cooled by air (1) comprising a plurality of ventilation modules (104) arranged in several parallel rows, adjacent to one another and placed in the same horizontal plane to form a ventilation structure (100) which is spaced from the ground (S) so as to promote circulation of air under the ventilation structure. Each ventilation module comprises a fan (106) directed to suction air present below the ventilation structure and blow it vertically through heat exchange elements (204). The exchanger further comprises at least one rigid panel (300) forming a windscreen which extends vertically from a lateral edge of the ventilation structure to the ground at a height (h) between 5 and 50% of the distance separating the ventilation structure from the ground.