Thermal exchange device with increased thermal exchange coefficient and method for production of such a device
AssigneeCommissariat A L'energie Atomique Et Aux Ene Alt
InventorsHai Trieu Phan, Jerome Gavillet
Life of this patent
Estimating the term…
Abstract
A heat exchange device including a first surface configured to be in contact with a source of heat to be discharged and a second surface configured to be in contact with a coolant. The device includes a plurality of recesses fluidically insulated from one another, each recess leading onto the second surface via at least one channel, each channel having a length and a transverse size that prevents the coolant from entering the recess. The second surface has better wettability properties with respect to the coolant and the inner surfaces of the channels and the recesses have wettability properties less than or equal to those of the second surface.
Claims18
1-17. (canceled)
A thermal exchange device comprising:
- a first face configured to be in contact with a source of heat to be dissipated;
- and
- a second face configured to be in contact with a cooling liquid;
- wherein the device further comprises, all the way through it, between the first and second faces, multiple cavities of average radius, in which:
- the cavities are isolated from one another in a fluid manner by walls, wherein each cavity emerges in the second face through at least one duct, wherein a length of each duct is greater than the average radius of the ducts, wherein the transverse dimension of the duct in an area of the connection with the cavity is such that it forms a restriction between the cavity and the duct, and wherein the second face is pierced with apertures formed by the ducts;
- and in which
- the second face has properties of better wettability in relation to the cooling liquid, such that a contact angle of the liquid is less than 90° and a contact angle between the liquid and the inner surfaces of the ducts and cavities is greater than or equal to that between the liquid and the second face.
Dependencies are inferred from the claim text.