Radiant cooling devices and methods of forming the same

Patent metadata

Field	Value
Publication number	US-11788800-B2
Application number	US-201816629899-A
Country	US
Kind code	B2
Filing date	Jul 10, 2018
Priority date	Jul 10, 2017
Publication date	Oct 17, 2023
Grant date	Oct 17, 2023

Abstract

A radiant cooling device comprises at least one fluidic layer including one or more micro-channel liquid-circuits and at least one structural layer coupled to the at least one fluidic layer. The device further includes a plurality of folds such that the device has a three-dimensional surface geometry having a plurality of inclined surfaces.

First claim

What we claim is:

1. A radiant cooling device comprising:
a plurality of generally planar panels, each of the plurality of panels including
a fluidic layer including one or more micro-channel liquid-circuits, at least one of the one or more micro-channel liquid-circuits having an internal channel configured for fluid flow within the at least one of the one or more micro-channel liquid-circuits, and
a structural layer coupled to the fluidic layer,

wherein the device further includes a plurality of folds separating each of the plurality of panels such that the device has a three-dimensional surface geometry having a plurality of inclined surfaces, wherein each of the plurality of folds has a generally zigzag shape.

2. The device of claim 1 , wherein the fluidic layer is generally flexible.

3. The device of claim 1 , wherein the one or more micro-channel liquid-circuits includes a fluid, the fluid including water, alcohol, oil, or any combination thereof.

4. The device of claim 1 , wherein each of the plurality of folds is generally linear.

5. The device of claim 1 , wherein the plurality of folds extends from a first end of the device to an opposing second end of the device, the plurality of folds including a first set of folds and a second set of folds, each of the folds of the first set of folds being arranged in an alternating manner with each of the second set of folds, each of the folds in the first set of folds being generally coplanar in a first plane, and each of the folds in the second set of folds being generally coplanar in a second plane.

6. The device of claim 1 , wherein each of the one or more micro-channel liquid-circuits has a networked channel geometry.

7. The device of claim 1 , wherein the structural layer includes a first structural layer and a second structural layer, the fluidic layer being sandwiched between the first structural layer and the second structural layer.

8. The device of claim 1 , wherein each of the one or more micro-channel liquid-circuits includes a fluid having particulates therein, the particulates including nanoparticles, microparticles, dyes, pigments, magnetic materials, electrically conducting materials, liquid crystals, or any combination thereof.

9. A method of forming a radiant cooling device, the method comprising:
providing at least one fluidic layer including one or more micro-channel liquid-circuits;
coupling at least one structural layer to the at least one fluidic layer to form a laminated structure;
folding or bending the laminated structure to form a plurality of folds thereon, wherein each of the plurality of folds has a generally zigzag shape, each of the plurality of folds separating the device into a plurality of generally planar panels having a respective plurality of inclined surfaces, the plurality of inclined surfaces forming a three-dimensional surface geometry.

10. The method of claim 9 , wherein the fluidic layer is generally flexible.

11. The method of claim 9 , further comprising cutting one or more of the fluidic or structural layers using a bulk machining process.

12. The method of claim 9 , wherein each of the plurality of folds is generally linear.

13. The method of claim 9 , wherein the plurality of folds extends from a first end of the laminated structure to an opposing second end of the laminated structure, the plurality of folds including a first set of folds and a second set of folds, each of the folds of the first set of folds being arranged in an alternating manner with each of the second set of folds, each of the folds in the first set of folds being generally coplanar in a first plane, and each of the folds in the second set of folds being generally coplanar in a second plane.

14. The method of claim 9 , wherein each of the one or more micro-channel liquid-circuits has a networked channel geometry.

15. The method of claim 9 , wherein the at least one structural layer is at least two structural layers, the fluidic layer being sandwiched between the at least two structural layer.

16. The method of claim 9 , wherein the at least one fluidic layer includes a first fluidic layer and a second fluidic layer, the one or more micro-channel liquid-circuits of the first fluidic layer being fluidly coupled to the one or more micro-channel liquid-circuits of the second fluidic layer via one or more through-holes.

17. The method of claim 9 , wherein each of the one or more micro-channel liquid-circuits includes a liquid having particulates therein, the particulates including nanoparticles, microparticles, dyes, pigments, magnetic materials, electrically conducting materials, liquid crystals, or any combination thereof.

18. The device of claim 1 , wherein the micro-channel liquid-circuits have dimensions ranging from about 1000 nm to about 1000 μm.

19. The device of claim 1 , wherein each of the one or more micro-channel liquid-circuits of each of the plurality of panels is generally independent of the one or more micro-channel liquid-circuits of the other of the plurality of panels.

20. The method of claim 9 , wherein the micro-channel liquid-circuits have dimensions ranging from about 1000 nm to about 1000 μm.

21. The method of claim 9 , wherein each of the plurality of generally planar panels includes at least one of the one or more micro-channel liquid-circuits, the at least one of the one or more micro-channel liquid-circuits of each of the plurality of generally planar panels being generally independent.

Assignees

• Harvard College

Inventors

• Grinham Jonathan
• Bechthold Martin
• Craig Salmaan
• Ingber Donald

Classifications

• F28F3/12 Primary

  Elements constructed in the shape of a hollow panel, e.g. with channels {(F28D1/02, F28D1/03 take precedence)} · CPC title

• F28D9/0025

  the conduits being formed by zig-zag bend plates · CPC title

• F28D9/0087

  with flexible plates · CPC title

• F28F21/065

  the heat-exchange apparatus employing plate-like or laminated conduits · CPC title

• F28F2210/02

  with particular branching, e.g. fractal conduit arrangements · CPC title