Energy generating apparatus

• US 5,488,828 A
• Filed: 05/14/1993
• Issued: 02/06/1996
• Est. Priority Date: 05/14/1993
• Status: Expired due to Fees

• Current Assignee: Pierre Brossard
• Original Assignee: Pierre Brossard
• Inventors: Brossard, Pierre
• Primary Examiner(s): Lazarus, Ira S.
• Assistant Examiner(s): HEYMAN, LEONARD
• Application Number:
  US08/061,679
• Time in Patent Office: 998 Days
• Field of Search: 60/675, 60/641.6, 60/656, 60/641.1
• US Class Current: 60/675
• CPC Class Codes: F03G 3/096 adapted for pumping or conveying fluids
• CPC Class Codes: F03G 7/04 using pressure differences or thermal differences occurring in nature F03G7/06 takes precedence

Abstract

An apparatus and method for obtaining energy is disclosed. The method includes heating a fluid in a liquid state by heat exchange with a heat source to generate a vapor of the fluid at a first elevation. The vapor of the fluid is caused to rise to a second elevation within an enclosed space and is condensed at the second elevation by heat exchange with a cold source. The liquid obtained by condensing the vapor is caused to fall from the second elevation and the energy of the falling liquid is converted to another form of energy, which is preferably electricity. The apparatus of the invention includes structure for vaporizing a liquid to form a vapor, a vapor tower for increasing the potential energy of the vapor by causing the vapor to rise along an upwardly-extending path. Structure is also provided for condensing the vapor by heat exchange with a cold source and recovering the increase in potential energy from the vapor, preferably in the form of electric power.

Claims

1. A method of generating energy with an apparatus, said method comprising the steps of:

(a) heating a fluid, contained in a vessel in a liquid state, by heat exchange with a heat source to generate a vapor of said fluid at a first elevation;

(b) causing the vapor of the fluid to rise to a second elevation within an enclosed space;

(c) condensing the vapor of the fluid at said second elevation by h at exchange with a cold source;

(d) causing the condensed fluid to fall from said second elevation;

(e) converting the energy of the falling fluid to another form of energy

(f) returning the fallen fluid to the vessel; and

wherein steps (a), (b) and (c) occur at a pressure wherein said fluid vaporizes at a temperature substantially equal to the temperature of the exterior environment;

and a regulator controls the rate of heating, condensing and energy conversion, said regulator receiving inputs from temperature, pressure and fluid flow sensors positioned within the apparatus and at least one temperature sensor outside the apparatus and, based on input data provided by said sensors, regulates the rate of heating, condensing and energy conversion.

21. The method according to claim 1, wherein said heating comprises exchanging heat with atmospheric air;

and said condensing comprising exchanging heat with at least one member of a group consisting of a subterranean water source and seawater.

22. The method according to claim 21, wherein said heating comprises forcing the atmospheric air into a heat exchanger which is in contact with the fluid to thereby transfer heat from the atmospheric air to the fluid.

23. The method according to claim 1, wherein said condensing comprises exchanging heat with said cold source by operating a heat pump.

24. The method according to claim 1, wherein said controlling rates of heating, condensing and energy conversion comprises sensing pressure within the apparatus.

25. The method according to claim 1, further comprising controlling vapor pressure by adjusting a rate of heating and condensing.

26. The method according to claim 1, wherein said heating comprises exchanging heat with at least one member of a group consisting of a subterranean water source and seawater;

and said condensing comprising exchanging heat with atmospheric air.

27. The method according to claim 26, wherein said heating comprises operating the heat pump to transfer heat from the heat source to the fluid.

28. The method according to claim 1, wherein said heating comprises exchanging heat with a first member of a group consisting of atmospheric air, a subterranean water source and sea water;

and

said condensing comprises exchanging heat with a second member of the group consisting of atmospheric air, a subterranean water source and sea water, wherein said first member is not the same as said second member.

29. The method according to claim 28, wherein said heating comprises regulating flow of atmospheric air through a heat exchanger;

and said condensing comprises regulating flow of refrigerant in a heat pump.

30. The method according to claim 28, wherein said heating comprises regulating flow of refrigerant in a heat pump;

and said condensing comprises regulating flow of atmospheric air through a heat exchanger.

2. An apparatus for generating energy, said apparatus comprising:

vaporizing means for applying a vaporization energy to a liquid to form a vapor from said liquid, said vaporization energy being provided by a naturally-occurring heat source;

vapor tower means for increasing the potential energy of said vapor by causing said vapor to rise along an upwardly-extending path under a pressure differential;

means for condensing said vapor by heat exchange with a naturally-occurring cold source;

means for recovering said increase in potential energy from said vapor, and converting said energy increase into electric power;

pressure, temperature and flow sensors positioned inside the apparatus, and at least one temperature sensor positioned outside the apparatus;

regulator means for controlling the rate of vapor production in said vaporizing means, the rate of vapor condensation in said means for condensing, and the rate of potential energy conversion into electric power in said means for recovering said increase in potential energy, said regulator means receiving input data from said temperature, pressure and flow sensors.

wherein said vaporizing means, said vapor tower means and said means for condensing maintain the vapor at a pressure sufficient to allow said liquid to vaporize at a temperature substantially equal to an environmental temperature outside the apparatus.

3. The apparatus of claim 2, wherein said heat source is atmospheric air and said cold source is selected from at least one of a group consisting of subterranean water source and seawater.

4. The apparatus of claim 3, wherein said liquid is contained in a boiler, the vaporizing means being comprised of atmospheric air forced over a boiler heat exchanger for transferring heat to said boiler.

5. The apparatus of claim 3, wherein the vaporizing means is comprised of at least one heat transfer conduit passing through a boiler containing said liquid, said conduit containing atmospheric air forced through said conduit by at least one fan.

6. The apparatus according to claim 3, wherein said means for condensing vapor comprises a heat pump system.

7. The apparatus according to claim 6, wherein said heat pump system includes:

a heat exchanger immersed in at least one of the group consisting of said seawater and said subterranean water source;

an evaporator;

and heat transfer means for transferring heat from said evaporator to said heat exchanger.

8. The apparatus according to claim 7, wherein said heat transfer means includes a first conduit for permitting refrigerant to pass from said heat exchanger to said evaporator, an expansion valve placed between said first conduit and said evaporator, a second conduit for passing refrigerant from said evaporator to said heat exchanger and a compressor for compressing said refrigerant as it passes from said evaporator to said heat exchanger.

9. The apparatus according to claim 2, wherein said vapor tower means is comprised of an upwardly extending chamber attached at a lower end to a boiler in a gas tight manner and attached at an upper end to a condenser in a gas-tight manner.

10. The apparatus according to claim 2, wherein said means for recovering said increase in energy from said vapor and converting said energy increase into electric power is comprised of:

a primary reservoir for receiving condensed liquid from said means for condensing said vapor;

a liquid tower attached in a liquid-tight manner to an opening in a lower portion of said primary reservoir, said liquid tower extending downwardly from said primary reservoir;

turbine means mounted at a lower end of said liquid tower for receiving liquid exiting said liquid tower;

a generator operatively associated with said turbine means, said generator being caused to produce energy when said liquid passes through said turbine means; and

a collector reservoir for receiving said liquid after said liquid has passed through said turbine means.

11. The apparatus according to claim 10, wherein conduit means are provided to permit said liquid to flow from said collector reservoir to said vaporizing means, a servo-valve being provided for controlling said flow.

12. The apparatus according to claim 10, further comprising a vacuum pump connected to an upper portion of said primary reservoir through a servo-valve, said vacuum pump provided for removing air from the apparatus upon initiation.

13. The apparatus according to claim 2, wherein vapor pressure in the vaporizing means and condensing means is controlled by said regulator means by varying the rate of heating and condensing.

14. The apparatus according to claim 2, wherein said heat source is selected from at least one of a group consisting of a subterranean ground water source and the sea, and said cold source is atmospheric air surrounding the apparatus.

15. The apparatus according to claim 14, further comprising a heat pump, wherein heat from said heat source is applied to said liquid by means of said heat pump.

16. The apparatus according to claim 14, further comprising air ducts passing through the interior of said means for condensing said vapor, and wherein said cold source is used to condense said vapor by forcing atmospheric air through said air ducts for receiving heat from said vapor contained within said means for condensing.

17. The apparatus according to claim 2 wherein said heat source and said cold source can each be selected from a group consisting of atmospheric air, seawater and a subterranean water source whereby a naturally occurring temperature differential may be realized.

18. The apparatus according to claim 17, wherein a flow of atmospheric air and a flow of a refrigerant associated with a heat pump may be selectively controlled depending on the temperature of the atmospheric air relative to at least one of said subterranean water source and said seawater.

19. The apparatus according to claim 18, further comprising refrigerant valves, wherein said flow of refrigerant is selectively controlled by said refrigerant valves so it may be used to condense said vapor in said means for condensing, and the flow of atmospheric air is selectively gated to said vaporizing means for vaporizing said liquid.

20. The apparatus according to claim 18, further comprising refrigerant valves, wherein said flow of refrigerant is selectively controlled by said refrigerant valves so said flow can be used to vaporize said liquid in said vaporizing means, and the flow of atmospheric air is selectively gated to said means for condensing said vapor for absorbing heat from said vapor.