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US 11,898,807 B2Granted
Single and multi-layer mesh structures for enhanced thermal transport
AssigneeThe Regents of the University of Colorado, a body corporate
InventorsRonggui Yang, Rongfu Wen, Shanshan Xu, Yung-Cheng Lee
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Abstract
This disclosure describes single and multi-layer woven meshes designed to enable sucking flow condensation and capillary-driven liquid film boiling, respectively, for instance, in use in heat spreaders. The single-layer woven meshes can include a nanostructure coating and a hydrophobic coating, while the multi-layer meshes can include a microcavity coating and optionally a hydrophilic coating.
Claims6
A mesh system with gradient channels, the system comprising:
- a multi-layer woven mesh with increasing mesh pore size bonded to a thermally conducting substrate and having a plurality of nano or microstructured features to increase boiling nucleation sites;
- multi-layer interconnected microchannels formed within the mesh and between the mesh d the substrate for capillary liquid wicking;
- and
- self-aligned gradient microchannels, each self-aligned gradient microchannel comprising mesh pores of increasing size extending away from the substrate to promote vapor and liquid to escape from the mesh system;
- whereby a critical heat flux and a heat transfer coefficient are increased via capillary liquid film boiling enhancement with accelerated vapor escape for delaying surface dry out.
2 more elements
Dependencies are inferred from the claim text.