Importance

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Abstract

A radiant heat transfer system for heating or cooling a room, has at least one heat exchange element in the form of a panel formed by a first plate and a second plate, the first and second plates being symmetrically profiled to form a flow channel arranged in a serpentine manner between the first and second plates for passage of a heat transfer fluid, wherein the first and second plates are pressed steel plates and are connected to each other by welding over the entire surface of the contact areas between the first and second plates, wherein the connection between the plates is made by laser welding, and wherein a surface texture obtained by laser treatment is present on the surface in contact with the heat transfer liquid of at least one of the first and second plates to increase the heat transfer.

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First Claim