CA1078629A - Closed loop hermetically sealed solar power generator - Google Patents

Closed loop hermetically sealed solar power generator

Info

Publication number
CA1078629A
CA1078629A CA293,792A CA293792A CA1078629A CA 1078629 A CA1078629 A CA 1078629A CA 293792 A CA293792 A CA 293792A CA 1078629 A CA1078629 A CA 1078629A
Authority
CA
Canada
Prior art keywords
boiler
water
steam
globular
turbine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA293,792A
Other languages
French (fr)
Inventor
Derrick A. Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA293,792A priority Critical patent/CA1078629A/en
Application granted granted Critical
Publication of CA1078629A publication Critical patent/CA1078629A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03GSPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00Devices for producing mechanical power from solar energy
    • F03G6/06Devices for producing mechanical power from solar energy with solar energy concentrating means
    • F03G6/065Devices for producing mechanical power from solar energy with solar energy concentrating means having a Rankine cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K27/00Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
    • F01K27/005Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for by means of hydraulic motors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00Arrangements for concentrating solar-rays for solar heat collectors
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/46Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

ABSTRACT OF THE DISCLOSURE
A closed loop hermetically sealed solar power generator and water purifying system are provided herein. It includes a hollow globular boiler. The globular boiler includes an upwardly directed steam outlet conduit originating from an upper half of the globular boiler, and a refractor lens win-dow disposed within an upper half of the globular boiler. The glubular boiler is adapted to contain a body of water. Means, e.g. a controllable paraboloid mirror, are provided for dir-ecting the sun's rays towards the refractor lens window to generate heat to boil water from the body of water in the glob-ular boiler. A primary turbine is disposed at a level above that of the boiler, the turbine being connected to the steam outlet conduit and being drivenby steam under pressure from the boiler. Steam condenser means are connected to the ef-fluent from the primary turbine for dissipating residual heat in the steam effluent from the turbine and for condensing such steam as substantially pure water. A reservoir is connected to the condenser means and is disposed at a level which is lower than that of the primary turbine, but at a level which is hi??er than that of the globular boiler, for receiving such substan-tially pure water. It is also used for adding the original make-up water. A secondary turbine is disposed at a level which is lower than that of the globular boiler. The second-ary turbine is connected to the reservoir and is driven by water from the reservoir. Pure water effluent means are pro-vided which lead from the secondary turbine to the globular boiler. Such solar power generator is thus very energy effic-ient and ecologically conservative since the work liquid (i.e., the water) is returned to its original source when its work has been extracted.

Description

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This invention relates to a solar power generator apparatus for harnessing energy from the sun and for conserving the water so used by such apparatus. This invention is related to applicant's copending application Serial No. 293,695 Electricity is one of the most widely used forms of energy.
It is known that electricity may be produced by hydroelectric generators, combustion engines powered by expensive fuel, e.g. oil or natural gas, or by electromotive steam engines powered by coal, or by the use of nuclear energy. These procedures suffer the deficiency that they may use diminishing non-renewable resources, and of pollution of the environment.
It would therefore be advantageous if electricity could be produced with the advantages pointed out above ~ut with fewer of the aforementioned disadvantages while conserving the water used in the pro-duction thereof.
Many proposals have been made to achieve these ends. In one proposal, that provided by Canadian Patent No. 145,581 issued January 28, . .
1913 to ~.A~Fessenden~apparatus was provided for obtaining power from the sun's radiant energy, which included the combination of a reservoir and a working fluid therein exposed to be heated by the sun's radiant energy, means for protecting such fluid against loss of heat by convec-tion, a low pressure turbine and means to operate it by that fluid, and an upper fluid reservoir and a lower fluid reservoir combined to store -energy generated by the tur~ine. The problem which that inventor apparently desired to solve was that of protection of the working fluid . ~ .
against heat loss by convection.
In another system, that provided by Canadian Patent No. 505,536 issued September 7, 1954 to Agnew, the patentee attempted to provide improved apparatus that utilized the energy of solar rays for effecting a temperature differential between a quantity of water or other liquid and the atmosphere thereabove, to conduct the resultant vapors to a - ~ . . . , ~ . . , , ,:

~ . - . : . . . : , - : . - . -~78~9 higher level, and then to condense the vapors- and store the liquid thus provided. The vapors created power to generate electric current. A
heat exchange was effected between a source of water supply and a quan-tity of the water obtained Erom the supply to increase vaporization of the quantity of water. This was apparently solved by a solar engine including the combination of a reservoir, a basin for receiving liquid from the reservoir, a differential-pressure conduit extending from the reservoir to the basin for passing liquid into the latter, a transparent dome for the basin (comprising a plurality of flat sheets for trans-mitting solar rays to evaporate the liquid in the basin), a closed-circuit thermo-siphon heat exchanger extending from the reservoir and into the liquid in the basin for increasing the evaparative rate of the liquid, an upwardly directed duct extending from the dome to conduct the evaporated liquid to a level above, and at a substantially lower atmospheric pressure, than that of both the reservoir and the basin, a condenser at the upper end of the duct to condense the vapors, means for removing free air ~rom the condenser, a storage reservoir elevated above the ~irst-mentioned reservoir, and a differential-pressure conduit leading from the condenser to the storage reservoir. The problem apparently to be solved by this patentee was to avoid the detrimental ef~ect on the-heat exchange characteristics of the presence of free air in the condenser circuit.
In a third system, that provided by Canàdian Patent No.
; 66g,504 lssued August 27, 1963 toPodolny,the patentee desired to pro-vide an arrangement for storing some of the heat energy from the s~n so that it might be utilized during the intervals when the device was not exposed to the radiant heat of the sun; a~d also to provide a power-plant in which a chemical compound was used which could be separated into its constituents electrically, together with an arrangement for 3~ storing the constituents~ to be later combined chemically for producing 1~ elec~rica~ energy ~or th~. p~werplant. These ends were apparent~y ~t :: .

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by a solar energy powerplant including the combination of a boiler, a mirror for concentrating radiant heat on the boiler, a turbine powered by vapor under pressure from the boiler, and a generator driven by the turbine in combination with an electrolysis device for separating a .:
compound into its constituents, storage means for the constituents, a fuel cell in which the constituents are ~ombined to produce electrical energy, and control means for selectively connecting the generator to the electrolysis device and to a load or connecting the fuel cell to the load. The problem thus appar~ntly solved by this patentee was to store the sun's energy in the form of constituents of a chemical which could later be recombined to provide electrical energy.

It is seen therefore that the primary object of providing generation of electrical energy both in the daytime and at night while conserving the water used in the generation thereof has not yet been solved. However, by the present invention, this can be achieved by using a primary energy supply which is inexpensive, limitless and pure, namely the sun, in con~unction with the part:icular construction to be described hereinafter.

Thus, by one br~ad aspect o~ this invention, a closed ~0 loop hermetically sealed solar power generator is provided comprising: (a) a hollow globular boiler, the globular boiler including an upwardly directed steam outlet conduit originating from an upper half of the globular boiler, and a refractor lens window disposed within an upper half of the globular boiler and adapted to contain a body of water therein; (b) controllable means for directing the sun's rays towards the refractor lens wi.ndow to generate heat to boil in water in said body of water in the globular boiler; (c) a primary turbinedisposed at a level above that of the globular ; 30 boiler, connected to the steam out:Let condu.it and being driven .:
by steam under pressure from the boiler; tc) steam condenser means ::
connected to the effluent from the turbine for dissipating residual heat - 3 - :

, : ,. : , : . : . ' ' . . ' .:

7~
in the steam which has been discharged from -the primary turbine and for condensing the steam as substantially pure water;
(e) a reservoir connec-ted to the condenser means and d~sposed at a level which is lower than the level of the primary turbine, but at a level which is higher than the level of the globular boiler;
(f) a secondary turb.ne disposed at a level lo~er than the reservoir but higher than that of : the globular boiler, connected to the reservoir and being driven by water fr~m the reservoir; and (g) pure water effluent -means to direct such water from the secondary turDine to the globular boiler. .
By one vari~nt, the steam condenser means includes a radiator connected to the primary turbine for simultaneously recovering useful heat from the steam and for partially condensing the steam to water, and a condenser connected to the radiator for substantially -completely condensing the steam to water.
_, , By another variant, the solar power generator includas a valve for controlling the flow of water from the reservoir to the secondary turbine.
By yet another vari~nt, the solar power generator includes a valvc automatically sequenced for periodic openin~ to permit flow of .: :

'' ;'~

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: ' , ~ - ~

..

. :. . : ~ , ~ : :

- : " ~ . ' ' ' :
.. ..

7~62~9 water ~rom the reservoir to the secondary turbine, and for periodic closing to cut off such water flow.

sy yet another variant, the solar power generator includes a check valve to control the flow of water through the pure water effluent means back to the globular boiler.

By a still further variant, the means (b) comprises a para-boloid reflector mounted on a post.

In the accompanying drawings, the single Figure is a schematic drawing of a solar power generator of one aspect o~ this invention as a system for the æonservation of water used in such an electrical power generating plant.

Tme embodiment o the invention illustrated is applicable wherever sunlight reaches and wherever water is available~
Generally, this solar power generator is an hermetically sealed, closed loop system including a ray c:ollector which collects the rays of the sun, partially converges them and refracts them through a re~ractor lens which completes the convergence r~nd y~elds high temperatures, which vaporizes the water in the boiler and produces steam that drives the day generator. The steam is then conducted through the radiator~where most of its sensible heat will be released, then to the condenser where the remainder of the sensible heat and its latent heat will dissipate and the vapor wilI condense. rme condensate will ~
accumulate in the reservoir. Tmis water will be pure distilled water. -. .
It will be released at night to drive the night generator, and then be ;~

returned to the globular boiler.

: . .
As seen in the drawing, the heart of the present invention is the globular boiler 10. rme globular boiler 10 ~omprises a hc)llow globular vessel 11. The level 14 of the water in vessel 11 i5 sufficient to provide steam for the system. ;
_ 5 _ ~786Z~
An upwardly directed steam outlet conduit 22 is enveloped with insulation 24 to minimi~e heat loss by radiation.
Steam outlet conduit 22 leads to primary generator 25, provided with a steam-run turbine blade 26 which turns shaft 27 for the generation of electricity in the usual manner. me -outflow steam lines 28 from generator 25 ~omprise a radiator 29, provided with radiator fins 29a for the simultaneous partial condensation of steam or dissipation of heat from the steam lines 28. Radiator 29 can alternatively, although not shown, be a water cooled heat exchanger system, with the flow of the water being caused by a steam pump, using effluent steam from the generator 25. Radiator 29 leads to condeaser 30, also provided with radiator fins 31, (or with a water cooled heat exchanger) where the condensation of the steam to water can be substantially completed. Effluent fxom the condenser 30 is to a res~rvoir 32. Original make-up water to the sealed ' system is supplied to reservoir 32 by lines 32a.
The reservoir 32 is adapted to release its contents .
through sluice 33, controlled by valve 34 (which may be an ' automatic timed solenoid valve or a hand valve) to a secondary generator 35 to run a water-powered turbine blade 36 which turns shaft 37 for the generation of electricity in the usual manner. The outflow of pure water from effluent line 38 is controllea througb check valve 39 back to globular ` boiler ll.
The input of energy for the operation of the solar generator is by the mechanism of a paraboloid reflector 40 mounted on a post 41. By suitable control of reflector 40 rays 42 of the sun 43 are caused to impinge as a parallel -stream into refractor lens 44. The rays concentrated by , : , , ' .

~786Z9 refractor 44 generate heat to cause the water in globular' boiler 11 to boil.
Steam rising through steam outlet conduit 22 drives turbine 26 to generate electricity, is condensed to water in tubes 28 and condenser 30 and is k~ d in reservoir 32. men it can perform additional useful work while flowing down through turbine 36 to generate more electricity. ~ :
me effluent water is returned to the globular boiler 11 through recycle line 38, controlled in its flow ~y a check vabve 39.

' ' ~
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, , , -~ - ~ . ." ' '., ' .,' . .

Claims (6)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A closed loop hermetically sealed water conser-vation solar power generator comprising;
(a) a hollow globular boiler; said boiler including an upwardly directed steam outlet conduit originating from an upper half of said globular boiler, and a re-fractor lens window disposed within an upper half of said globular boiler, said boiler being adapted to contain a body of water;
(b) controllable means for directing the sun's rays towards said refractor lens window to generate heat to boil water in said boy of water in said globular boiler;
(c) a primary turbine disposed at a level above that of said boiler, connected to said steam outlet conduit and driven by steam under pressure from said boiler;
(d) steam condenser means connected to the effluent of said primary turbine for substantially simultaneously dissipating residual heat in said steam effluent from said primary turbine and condensing said steam to sub-stantially pure water;
(e) a reservior connected to said condenser means, dis-posed at a level lower than the level of said primary turbine but at a level higher than the level of said globular boiler;
(f) a secondary turbine disposed at a level lower than that of said reservoir but higher than that of said globular boiler, connected to said reservoir and being selectively driven by water from said reservoir;
and (g) pure water effluent means from said secondary turbine to said body of water.
2. The solar power generator of claim 1 wherein said steam condenser means includes a radiator connected to said primary turbine for simultaneously recovering useful heat from said steam and for partially condensing said steam to water, and a condenser connected to said radiator for substantially completely condensing said steam to water.
3. The solar power generator of claims 1, or 2 including a valve for controlling the flow of water from said reservoir to said secondary turbine.
4. The solar power generator of claims 1 or 2 including a valve automatically sequenced for periodic opening to permit flow of water from said reservoir to said secondary turbine, and closing to cut off said flow.
5. The solar power generator of claims 1 or 2 including a check valve to control the flow of water through said pure water effluent means back to said body of water.
6. The solar power generator of claims 1 or 2 wherein said means (b) comprises a paraboloid reflector mounted on a post.
CA293,792A 1977-12-22 1977-12-22 Closed loop hermetically sealed solar power generator Expired CA1078629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA293,792A CA1078629A (en) 1977-12-22 1977-12-22 Closed loop hermetically sealed solar power generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA293,792A CA1078629A (en) 1977-12-22 1977-12-22 Closed loop hermetically sealed solar power generator

Publications (1)

Publication Number Publication Date
CA1078629A true CA1078629A (en) 1980-06-03

Family

ID=4110373

Family Applications (1)

Application Number Title Priority Date Filing Date
CA293,792A Expired CA1078629A (en) 1977-12-22 1977-12-22 Closed loop hermetically sealed solar power generator

Country Status (1)

Country Link
CA (1) CA1078629A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019001645A1 (en) * 2017-06-30 2019-01-03 Ingo Tjards Power plant for generating electrical energy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019001645A1 (en) * 2017-06-30 2019-01-03 Ingo Tjards Power plant for generating electrical energy

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