Solar to electric system

• US 20100288322A1
• Filed: 05/18/2009
• Published: 11/18/2010
• Est. Priority Date: 05/18/2009
• Status: Abandoned Application

• Current Assignee: Jon Murray Schroeder
• Original Assignee: Jon Murray Schroeder
• Inventors: Schroeder, Jon Murray, Hirsch, Gerald Philip
• Application Number:
  US12/454,376
• Publication Number:
  US 20100288322A1
• Time in Patent Office: Days
• US Class Current: 136/201
• CPC Class Codes: F02C 1/05 characterised by the type or source of heat, e.g. using nuclear or solar energy
• CPC Class Codes: F02C 3/305 Increasing the power, speed, torque or efficiency of a gas turbine or the thrust of a turbojet engine by injecting or adding water, steam or other fluids F01K21/04 takes precedence
• CPC Class Codes: F03G 6/064 having a gas turbine cycle, i.e. compressor and gas turbine combination
• CPC Class Codes: F03G 6/065 having a Rankine cycle
• CPC Class Codes: F24S 23/71 with parabolic reflective surfaces with cylindro-parabolic reflective surfaces F24S23/74
• CPC Class Codes: F24S 30/428 with inclined axis
• CPC Class Codes: F24S 90/00 Solar heat systems not otherwise provided for
• CPC Class Codes: F28D 20/0056 using solid heat storage material F28D20/0052 takes precedence
• CPC Class Codes: F28D 2020/0026 the heat storage material being enclosed in mobile containers for transporting thermal energy
• CPC Class Codes: H10N 10/13 characterised by the heat-exchanging means at the junction
• CPC Class Codes: Y02E 10/40 Solar thermal energy, e.g. solar towers
• CPC Class Codes: Y02E 10/46 Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
• CPC Class Codes: Y02E 10/47 Mountings or tracking
• CPC Class Codes: Y02E 60/14 Thermal energy storage
• CPC Class Codes: Y02E 70/30 Systems combining energy storage with energy generation of non-fossil origin

Abstract

Conversion of solar heat into electrical energy is achieved using a parabolic reflector, a heat transfer medium, a high-density heat store and a thermoelectric generator. The system is useful for various forms of stationary and moving applications. Using stored heat derived from sunlight provides day and night electrical supply over many days depending on the size of the solar collector and heat store. Moving applications are achieved using a mobile heat store with attached thermoelectric generator.

Claims

1. A system to collect, store and convert sun light to electricity comprising:

(a) A reflective parabolic solar collector,

(b) a target to capture focused and reflected sunlight from said collector,

(c) a means to transfer heat collected by said target to a heat store,

(d) an insulated heat store,

(e) a means to transfer heat from said heat store to a thermoelectric generator that uses bismuth telluride and antimony telluride based semiconductors,

(f) a means to control the amount of heat transferred from said heat store to said thermoelectric generator,

(g) a means to transfer electrical energy from said thermoelectric generator to a resistance heater in said heat store,

(h) A bifurcation means to transfer heat directly to said thermoelectric generator instead to said heat store when heat coming from said target is at a lower temperature than the temperature in said heat store.

2. A system according to claim 1 wherein said reflective parabolic collector is a solar tracking circular parabolic collector.

3. A system according to claim 2 wherein said collector is solar tracked controlled by a motor rotating said collector around an axis aligned to the North Star axis.

4. A system according to claim 1 wherein said means to transfer heat from said target to said heat store is air circulated by a speed controlled fan driving air in closed, insulated tubing lines passing to and from said heat store.

5. A system according to claim 4 further comprising a means to control the speed of said fan.

6. A system according to claim 5 further comprising a valve inserted in said line.

7. A system according to claim 1 wherein air from said heat store is moved to said thermoelectric generator hot fins and at the same time ambient cooling is forced through said thermoelectric generator cold fins with two fans driven by a single motor.

8. A system according to claim 1 wherein said insulated heat store contains high-density solid particles.

9. A system according to claim 8 further comprising partitions to force air to distribute throughout said heat store.

10. A system according to claim 8, wherein said high-density particles are ceramic shards.

11. A system according to claim 1 wherein said insulated heat store is insulated using foamed silicates.

12. A system according to claim 2 wherein said thermoelectric generator is placed on top of said heat store and wherein a skirt of water repellant and air porous material is connected around the edge of said parabolic solar collector and said heat store thereby covering said thermoelectric generator.

13. A system according to claim 12 wherein heat from said heat store radiates directly to the hot fins of said thermoelectric generator and is moderated by an insulated movable reflector located between said heat store and said hot fins.

14. A system according to claim 4 wherein said target comprises said return line of air from said heat store, said line going from said target to said heat store and in between an open space where concentrated sunlight heats air passing in between said line from said heat store and said line going to said heat store.

15. A mobile insulated heat store with an attached thermoelectric generator utilizing bismuth telluride and antimony telluride based semiconductors.

16. A heat store according to claim 15 further comprising a resistance heater and means to transfer electricity to said resistance heater.

17. A vehicle powered by at least one electrical motor deriving energy from said heat store and converted to electricity by said thermoelectric generator utilizing bismuth telluride and antimony telluride based semiconductors.

18. A vehicle according to claim 17 wherein said vehicle is a car.

19. A vehicle according to claim 18 wherein said vehicle is a used car that after removal of the combustion motor is fitted with said electrical motor that is connected to the power train and said heat store and said thermoelectric generator.

20. A vehicle according to claim 17 wherein said vehicle is a truck.

21. A vehicle according to claim 20 wherein said vehicle is a used truck that after removal of the combustion motor is fitted with said electrical motor that is connected to the power train and fitted with said heat store and said thermoelectric generator.

22. A vehicle according to claim 17 wherein said vehicle is a bicycle.

23. A bicycle according to claim 22 wherein said heat store energy is converted to electricity by said thermoelectric generator and electricity produced drives a traction motor that powers a bicycle wheel.

24. A vehicle according to claim 17 wherein said vehicle is a trailer used to push a car.

25. A vehicle according to claim 17 wherein said vehicle is a tractor-trailer propelled by electricity from said thermoelectric generator and said generator is situated on the hitch and said generator drives electric motors directly attached to the wheels of said tractor trailer.

26. A vehicle according to claim 17 wherein said vehicle is a large vehicle such as a train and boat and aircraft.

27. A solar battery comprised of a heat store and a thermoelectric generator wherein said battery is heated by a solar collector, and by resistance heating and by the thermal transfer of heat.

28. A steam propulsion system for vehicles wherein water is added to a charged solar battery and the high pressure steam produced powers said vehicle using the force released when said steam exits said battery through nozzles.

29. An aircraft powered by the steam propulsion system of claim 28.

30. A integrated, solar powered habitat utilizing a solar collector and thermoelectric generator comprising:

(a) A reflective parabolic solar collector,

(b) a target to capture focused and reflected sunlight from said collector,

(c) a means to transfer heat collected by said target to a heat store,

(d) an insulated heat store,

(e) a means to transfer heat from said heat store to a thermoelectric generator that uses bismuth telluride and antimony telluride based semiconductors,

(f) a means to control the amount of heat transferred from said heat store to said thermoelectric generator,

(g) a means to transfer electrical energy from said thermoelectric generator to a resistance heater in said heat store,

(h) a bifurcation means to transfer heat directly to said thermoelectric generator instead to said heat store when heat coming from said target is at a lower temperature than the temperature in said heat store,

(i) a habitable structure composed of foamed plastic reinforced by natural fibers.

31. A habitat according to claim 30 further comprising a means to transfer heat directly from said heat store to said structure.

32. A habitat according to claim 31 wherein said means is a speed controlled fan circulating air through insulated tubing to and from said structure and said heat store.

33. A habitat according to claim 32 wherein heat from said heat store is directed to a toilet to treat human waste.

34. A habitat according to claim 31 further comprising tubing installed in the floor of said structure said tubing being connected by insulated tubing from said heat store.

35. A habitat according to claim 31 wherein said structure and said solar collector rest on a floating substrate to allow said habitat to float on water.

36. A means of configuring a thermoelectric generator and heat store to operate an electric drive train to operate as a drop-in replacement for a combustion engine;

37. A means of moving re-circulated hot air from external heat stores (saddle tanks) to main heat store;

38. A means of adapting a trailer as a heat store powered thermoelectric device to power an onboard electric drive train to push and dynamically brake a vehicle on demand and control of the pushed vehicle driver;

39. A means of powering a train of trailers without traction from the truck.

40. A means of building a habitat for third world to go with the electricity they will have powered by the sun;

41. A way to make furniture for habitat along with the building of the home.

42. A way to produce built-in cabinets, kitchen and bathroom for habitat at the same time home is built in an hour;

43. A way to add a floating floor barge to a habitat for regions with occasional flooding as home is built in an hour;

44. A means of building a one-piece habitat, using native grown 2-part bubbled epoxy in about an hour;

45. A way to create native grown 2-part epoxy made from ironweed seeds and castor beans pressed and formulated to produce bubbled epoxy inside molds for the building of one-piece habitat in about an hour;

46. A means to create removable re-useable forms to build habitat in about an hour;

47. A means to push an automobile with electric drive train trailer with and without engine at idle;

48. A way to harvest water for village consumption and in arid areas for agriculture;

49. A way to make electric toilet made from bubble epoxy at same time habitat is built that uses electricity to compost human waste hygienically;

50. A means to power a jet aircraft using a flash boiler heated by solid ceramic. Heat-insulated stored water injected into onboard heat store to form super-heated steam that drives fanjet fan with and without fuel burn in the turbojet section of fanjet engine;

51. A means of powering a bicycle with a handlebar mounted thermoelectric generator heat store and traction device to allow rider powered transportation for 50-mile range;

52. A means of combining solar collector, heat store, means of moving heat collected by the solar collector to heat store and a way to use heat of heat store to operate thermoelectric generator to produce portable and stationary electrical power;

53. A means of generating electricity without liberating greenhouse gas;

54. A means of generating electricity without releasing pollution (H₂SO₄, HCI, CO, NO_N,Hg);

55. A means of making a long-lasting heat store for electric production;

56. A means of making a long-lasting heat store portable for use in transportation;

57. A means of moving stored heat from one heat to another and back;

58. A means of combining a heat store with a generator used as a portable electric battery;

59. A means of combining a solar collector, heat store with a generator to form an electricity-producing canopy for buildings, vehicles and to cover equipment;

60. A means of placing an array of solar collectors, stores, electric generators in the right of way of a transmission line to feed into the grid;

61. A means of placing arrays of solar collectors, stores, and electric generators on rooftops and clearings in wooded areas to peak shave industrial sites and to feed into the grid;

62. A means of supplementing the power of aircraft turbine engines to eliminate and drastically reduce the requirement for fossil fuel in air transportation;

63. A means of combining thermoelectric generator with other components, such as cars, trucks, buses, trains, ships and planes to provide a broad range of useful products.

64. A means whereby the various elements contained in the solar-to-electric system patent—

safe electricity generated from a renewable source, clean water, hygienic sanitation, comfortable affordable housing, electric transport—

allows the village concept to be implemented economically while also minimizing or eliminating entirely the emission of greenhouse gases.