Method and apparatus for converting dissipated heat to work energy

• US 20030098588A1
• Filed: 11/26/2001
• Published: 05/29/2003
• Est. Priority Date: 11/26/2001
• Status: Active Grant

• Current Assignee: Avram Bar-Cohen, Sony Corporation (Sony Group Corp.)
• Original Assignee: Avram Bar-Cohen, Sony Corporation (Sony Group Corp.)
• Inventors: Bar-Cohen, Avram, Yazawa, Kazuaki
• Granted Patent: US 6,856,037 B2
• Time in Patent Office: Days
• US Class Current: 290/43
• CPC Class Codes: F03G 7/00 Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
• CPC Class Codes: F28D 15/00 Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies F28D17/00, F28D19/00, F28D20/00 take precedence
• CPC Class Codes: F28D 15/0266 with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers F28D15/043 takes precedence
• CPC Class Codes: F28F 2250/08 Fluid driving means, e.g. pumps, fans
• CPC Class Codes: F28F 23/00 Features relating to the use of intermediate heat-exchange materials, e.g. selection of compositions heat-transfer, heat-exchange or heat-storage materials C09K5/00
• CPC Class Codes: H01L 23/4275 by melting or evaporation of solids
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

A method for converting lower temperature dissipated heat to other useful energy and apparatus therefor. Heat energy is transferred to a fluid contained within a conduit, and natural convection of the fluid is utilized to transfer kinetic energy of the heat to another type of energy such as electrical energy.

Claims

1. A heat dissipating device, comprising:

a fluid conduit, the fluid conduit configured to channel an fluid therethrough, the fluid conduit being thermally connected to a electrical component capable of generating heat to cause a fluid flow of the fluid through the fluid conduit;

a heat exchanger, the heat exchanger operatively positioned between the electrical component and the fluid conduit to transfer heat out of the fluid to enhance the fluid flow; and

a energy converter, the energy converter operatively coupled to the fluid conduit to generate energy in response to the fluid flow.

2. The heat dissipating device of claim 1, wherein the fluid conduit includes a first column and a second column parallel to each other, a first connective portion connecting the first column and the second column, a second connective portion connecting the second column to the first column wherein the first column being thermally connected to the electrical component.

3. The heat dissipating device of claim 1, wherein the fluid is an electrically conductive fluid.

4. The heat dissipating device of claim 1, wherein the fluid is a liquid metal.

5. The heat dissipating device of claim 1, wherein the energy generated is electrical energy.

6. The heat dissipating device of claim 1, wherein the energy converter is a liquid magneto hydro generator.

7. The heat dissipating device of claim 1, wherein the energy converter includes a first electrode, a second electrode and a permanent magnet centrally displaced between them, the permanent magnet configured to create a magnetic field across the fluid whereby an electric potential is raised between the first electrode and the second electrode.

8. The heat dissipating device of claim 1, wherein the electrical component is adapted to generate heat at less than or equal to 150°

C.

9. The heat dissipating device of claim 1, wherein a volatile fluid is immersed in the fluid, the volatile fluid having a lower boiling point than the fluid.

10. The heat dissipating device of claim 9, wherein the volatile fluid evaporates due to the heat transferred to the fluid to create gas bubbles in the fluid to further increase fluid flow of the fluid through the energy converter.

11. The heat dissipating device of claim 10, wherein the gas bubbles have diameters less than half a smallest diameter of the fluid conduit.

12. The heat dissipating device of claim 1, wherein the heat exchanger is thermally coupled to the second column and configured to extract heat from the fluid and dissipate the extracted heat.

13. The heat dissipating device of claim 1, wherein the heat exchanger dissipates the heat across a plurality of heat fins into a heat reservoir.

14. A closed loop heat dissipating device for dissipating waste heat within an electrical environment to produce energy, comprising:

a fluid conduit, the fluid conduit configured to channel an fluid therethrough, the fluid conduit being thermally connected to a electrical component capable of generating heat to cause a fluid flow of the fluid through the fluid conduit;

a volatile fluid, the volatile fluid being immersed in the fluid wherein the volatile fluid has a lower boiling point than the fluid; and

a energy converter, the energy converter operatively coupled to the fluid conduit to generate energy in response to the fluid flow, the energy converter positioned downstream of the electrical component.

15. The closed loop heat dissipating device of claim 14, wherein the fluid conduit comprises a closed conduit having a first column, a second column and at least one connective portion connecting the first column to the second column.

16. The closed loop heat dissipating device of claim 14, further comprising a heat exchanger thermally connected to the fluid conduit.

17. The closed loop heat dissipating device of claim 16, wherein the heat exchanger is operatively positioned opposite the electrical component on the closed conduit, the heat exchanger is thermally connected to the closed conduit to draw heat out of the fluid to enhance the fluid flow.

18. The closed loop heat dissipating device of claim 14, wherein the electrical component is adapted to generate heat at less than or equal to 150°

C.

19. The closed loop heat dissipating device of claim 14, wherein the volatile fluid evaporates due to the heat transferred to the fluid to create gas bubbles in the fluid to further increase fluid flow through the energy converter.

20. The closed loop heat dissipating device of claim 14, wherein the energy converter comprises a first electrode, a second electrode and a permanent magnet centrally displaced therebetween, the permanent magnet creating a magnetic field across the fluid whereby an electric potential is raised between the first electrode and the second electrode, each electrode deriving electricity across the electric potential.

21. The closed loop heat dissipating device of claim 14, wherein the fluid is a liquid metal.

22. The closed loop heat dissipating device of claim 14, wherein the heat exchanger is positioned on the fluid conduit to downwardably flow the fluid therethrough.

23. The closed loop heat dissipating device of claim 22, wherein the heat exchanger dissipates the heat across a plurality of heat fins into a heat reservoir.

24. A closed loop heat dissipating device for dissipating waste heat within an electrical environment to produce electrical energy, comprising:

at least one fluid conduit, the least one fluid conduit configured to channel a fluid therethrough, the at least one fluid conduit having a first column, a second column oppositely positioned from the first column, the at least one fluid conduit thermally connected to at least one electrical component, each electrical component capable of generating heat at less than or equal to 150°

C.;

at least one energy converter, the at least one energy converter operatively associated with the at least one fluid conduit to generate electricity from the fluid flow, the at least one energy converter coupled to the at least one fluid conduit downstream from the electrical component, the at least one energy converter comprising a first electrode, a second electrode and a permanent magnet centrally displaced therebetween; and

a heat exchanger, the heat exchanger operatively positioned on the second column, the heat exchanger thermally connected to the second column to transfer heat out of the fluid across heat fins into a heat reservoir.

25. The closed loop heat dissipating device of claim 24, further comprising a plurality of electrical leads coupled to the first electrode and the second electrode, the plurality of electrical leads transferring the electricity to an electrical storage.

26. The closed loop heat dissipating device of claim 24, wherein the permanent magnet is configured to create a magnetic field across the fluid whereby an electric potential is raised between the first electrode and the second electrode, each electrode deriving electricity across the electric potential.

27. The closed loop heat dissipating device of claim 24, wherein a volatile fluid is immersed in the fluid, the volatile fluid having a lower boiling point than the fluid.

28. The closed loop heat dissipating device of claim 27, wherein the volatile fluid heatably evaporates by the heat creating gas bubbles, the gas bubbles configured to enhance the fluid flow to increase the fluid flow through the energy converter.

29. The closed loop heat dissipating device of claim 28, wherein the gas bubbles have diameters less than half a smallest diameter of the fluid conduit.

30. A method of dissipating waste heat from an electrical environment to produce electricity, comprising:

a. channeling an fluid through a fluid conduit;

b. differentiating the density of the fluid by thermally connecting the fluid conduit to a electrical component generating heat causing the fluid to flow by convection through the fluid conduit;

c. dissipating heat from the fluid for maintaining the differential of the density;

d. transferring the energy to an electrical storage; and

e. generating energy by directing the fluid through an energy converter.

31. The method according to claim 30, further including increasing the flow by immersing a volatile fluid in the fluid.

32. The method according to claim 30, wherein the volatile fluid has a lower boiling point than the fluid, the volatile fluid evaporating when passing the electrical component to further increase the fluid flow therein by creating gas bubbles within the fluid.

33. The method according to claim 30, wherein the gas bubbles have diameters less than one half a smallest diameter of the fluid conduit.

34. The method according to claim 30, wherein the energy converter comprises a first electrode, a second electrode and a permanent magnet centrally displaced therebetween, the permanent magnet creating a magnetic field across the fluid whereby an electric potential is raised between the first electrode and the second electrode, each electrode deriving electricity across the electric potential.

35. The method according to claim 30, wherein a heat exchanger dissipates the heat to a heat reservoir.

36. The method according to claim 30, wherein the energy is electrical energy.