WO2016207449A1 - Installation solaire hybride - Google Patents

Installation solaire hybride Download PDF

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Publication number
WO2016207449A1
WO2016207449A1 PCT/ES2015/070487 ES2015070487W WO2016207449A1 WO 2016207449 A1 WO2016207449 A1 WO 2016207449A1 ES 2015070487 W ES2015070487 W ES 2015070487W WO 2016207449 A1 WO2016207449 A1 WO 2016207449A1
Authority
WO
WIPO (PCT)
Prior art keywords
installation
solar
high temperature
thermal
hybrid
Prior art date
Application number
PCT/ES2015/070487
Other languages
English (en)
Spanish (es)
Inventor
José Alfonso NEBRERA GARCÍA
Alberto RODRIGUEZ ROCHA
Jorge SERVERT DEL RIO
Original Assignee
Acs Servicios, Comunicaciones Y Energía, S. L.
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 Acs Servicios, Comunicaciones Y Energía, S. L. filed Critical Acs Servicios, Comunicaciones Y Energía, S. L.
Priority to PCT/ES2015/070487 priority Critical patent/WO2016207449A1/fr
Publication of WO2016207449A1 publication Critical patent/WO2016207449A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00—Devices for producing mechanical power from solar energy
    • F03G6/06—Devices for producing mechanical power from solar energy with solar energy concentrating means
    • F03G6/065—Devices for producing mechanical power from solar energy with solar energy concentrating means having a Rankine cycle
    • F03G6/067—Binary cycle plants where the fluid from the solar collector heats the working fluid via a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00—Devices for producing mechanical power from solar energy
    • F03G6/003—Devices for producing mechanical power from solar energy having a Rankine cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00—Devices for producing mechanical power from solar energy
    • F03G6/003—Devices for producing mechanical power from solar energy having a Rankine cycle
    • F03G6/005—Binary cycle plants where the fluid from the solar collector heats the working fluid via a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00—Devices for producing mechanical power from solar energy
    • F03G6/06—Devices for producing mechanical power from solar energy with solar energy concentrating means
    • F03G6/065—Devices for producing mechanical power from solar energy with solar energy concentrating means having a Rankine cycle
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines

Definitions

  • the present invention relates to a hybrid solar installation that allows the production of electricity from the hybridization of solar energy and a fuel suitable for use in an engine and / or a turbine, preferably natural gas, LPG, biogas, Synthesis gas or liquid fuels such as diesel, diesel, biokerosene or jet-fuei.
  • a fuel suitable for use in an engine and / or a turbine preferably natural gas, LPG, biogas, Synthesis gas or liquid fuels such as diesel, diesel, biokerosene or jet-fuei.
  • the object of the present invention is a hybrid solar installation with a manageable and firm renewable technology that can be adapted to the electricity demand curve, thus overcoming the traditional disadvantage of renewable technologies, so that their production does not depend on the availability of solar resource, variable in time,
  • the photovoitaic use has the disadvantage of being non-manageable, since its instantaneous production capacity is inextricably subject to the availability of solar energy; its manageability can only be achieved by storing electrical energy, which is a non-specific technology of the source used and its predictability is only in the short term.
  • Thermoelectric utilization can be done by concentrating solar energy through parabolic discs, parabolic trough channels, Fresnel linear receivers or solar towers.
  • Parabolic discs are small autonomous units that, although they can be grouped together to produce large-scale electricity, are hardly susceptible to integration per se, which limits their options for improved manageability and predictability.
  • Fresnel linear receivers are based on units formed by small flat individual mirrors or with small curvature and horizontal axis and that are oriented according to the position of the sun and the receiver on which the radiation is concentrated. Said receiver is fixed and placed at a higher height than that of the mirrors. Inside the receiver circulates a transfer fluid that captures the heat concentrated by the mirrors. Traditionally, water / steam is used as a transfer fluid, so that the management of such systems is limited to pressurized storage of superheated water, limiting the storage capacity and therefore its manageability.
  • Both parabolic trough and solar tower channel technology are based on heating a heat transfer fluid or heat transfer fluid (HTF) using concentrated solar radiation, and then use this fluid to generate steam that will be used in a regenerative and overheated Rankine cycle.
  • HTF heat transfer fluid
  • Both technologies try to improve their manageability in three ways mainly: oversizing the surface of solar radiation collection, including storage of thermal energy, and / or burning auxiliary fuels (usually natural gas) in furnaces to heat the heat-carrying thermal fluid.
  • auxiliary fuel in furnaces could solve the problem, but normally the power delivered by these furnaces is much lower than the nominal of the installation (since they are mainly used as a regulation mechanism) and, although their size was sufficient, the performance obtained would be poor compared to other technologies.
  • the carbon footprint is increased by their use.
  • natural gas can be used in combined cycle power plants with yields close to 55%, while used in the furnace of these solar power plants its performance is limited superiorly by that of the Rankine cycle of the installation, which is usually in the range from 37 to 42% maximum (without considering boiler performance).
  • efficiency would be sacrificed in exchange for predictability and manageability.
  • Fossil fuel powered facilities are often highly predictable and manageable, especially open or combined cycle gas turbines.
  • these capacities are paid in the form of environmental cost and, in many cases, energy dependence due to the lack of local fossil resources.
  • the hybrid solar installation of the present invention solves all the above drawbacks by presenting advantages of efficiency, manageability, predictability, low environmental impact and use of local energy resources with respect to the prior art installations,
  • the present invention relates to a solar hybrid installation that allows the production of electricity to be carried out from the hybridization of solar energy and an auxiliary fuel suitable for use in an engine and / or a turbine, preferably natural gas, LPG, biogas, synthesis gas or liquid fuels such as diesel, diesel, biokerosene or jet-fuei.
  • an auxiliary fuel suitable for use in an engine and / or a turbine, preferably natural gas, LPG, biogas, synthesis gas or liquid fuels such as diesel, diesel, biokerosene or jet-fuei.
  • the hybrid solar installation comprises a thermoelectric solar installation with thermal storage, preferably with central tower or parabolic channel technology and an auxiliary machine, preferably a thermal combustion machine, more preferably a gas turbine or an engine that provides the Hybrid installation a high degree of flexibility that allows to be completely manageable and firm.
  • the solar hybrid installation comprises a high temperature storage tank and a low temperature storage tank of! storage fluid of the thermoelectric solar installation, this system may sometimes be replaced by a thermocycline tank, and also a steam turbine, so that the power to be delivered by the installation may be covered by combinations of steam turbine power and the auxiliary machine depending on the energy available to both.
  • the solar hybrid installation also includes a high-temperature recovery boiler that uses the energy available in the exhaust gases of the auxiliary machine so, in addition to providing additional power by itself, the auxiliary machine increases the energy available in the system Thermal storage, which is used to move the steam turbine.
  • the operation strategy of the installation includes demand forecast and available solar resource, so that the operating regime of the gas turbine is optimized to ensure that the thermal storage will have sufficient energy when necessary.
  • a post-combustor arranged after the thermal combustion machine or auxiliary machine that adds a amount of additional fuel in order to heat the exhaust gases of the auxiliary machine so as to allow the heating of the storage fluid to the temperature defined by the high temperature tank, in order to obtain a sufficiently high gas temperature for the correct operation of the high temperature recovery boiler and under conditions imposed by the high temperature storage tank.
  • the hybrid solar installation also comprises a low temperature recovery boiler, which uses the energy available in the exhaust gases of the alpha temperature recovery boiler, to reduce the temperature of the exhaust gases by means of a transfer fluid.
  • the energy thus recovered from the exhaust gases can be sent to a condensate preheater which, together with a condenser, the steam turbine and a steam generator form a Rankine cycle, where steam is generated for the steam turbine.
  • a secondary transfer fluid circuit with the corresponding heat exchangers can be used, or the condensate can be circulated directly through the low recuperator. In this way, through the low temperature recovery boiler, the generation and consumption of this low heat is decoupled in time analogously to what is done with high temperature energy.
  • the exhaustive recovery of the energy available in the auxiliary fuel makes the installation very efficient, reaching a thermal to electrical efficiency for the auxiliary fuel close to a combined cycle.
  • the number of annual hours in which the Rankine cycle operates at high rates can be maximized, which increases the average annual performance of the same.
  • the hybrid solar installation of the present invention provides energy with the same manageability and firmness as a combined cycle of comparable power, but consuming approximately 40% of the fossil fuel. In this way, it takes advantage of a local energy resource such as solar, minimizing the dependence of additional fuels to stabilize production and improve predictability and manageability of the installation.
  • the hybrid solar installation of the present invention is easily adaptable to the use of locally produced fuels (biogas, biokerosene, etc.) provided their quality allows them to be used in thermal machines.
  • locally produced fuels biogas, biokerosene, etc.
  • Figure 1 shows a first preferred embodiment of the solar hybrid installation of the present invention.
  • Figure 2 shows a second preferred embodiment of the hybrid solar installation of the present invention. PREFERRED EMBODIMENT OF THE INVENTION
  • the solar hybrid installation comprises a thermoelectric solar installation (1) with thermal storage, with parabolic channel technology in this embodiment, and an auxiliary machine (2), preferably a machine thermal combustion, more preferably a gas turbine.
  • the solar hybrid installation comprises a high temperature storage tank (3) and a low temperature storage tank (4) of a storage fluid of the thermoelectric solar installation or a thermocline tank replacing the high temperature storage tank ( 3) and the low temperature storage tank (4), and in this preferred embodiment, a reversible heat exchanger (5) between a heat transfer fluid and the storage fluid, between the high temperature storage tanks (3 ) low temperature (4) and thermoelectric solar installation (1).
  • the hybrid solar installation also includes a high recovery boiler temperature (6) that uses the energy available in the exhaust gases of the auxiliary machine (2) to increase the temperature of the storage fluid that is directed to the high temperature storage tank (3) or the thermocline tank, and a boiler Low temperature recovery (7), which uses the energy available in the exhaust gases of the high temperature recovery boiler (6), exhaust gases that are preferably located at 300 ° C, by means of a transfer fluid (which can be directly condensed from the cycle, or a secondary circuit of pressurized water, thermal oil, mineral oil or others) reduce the temperature of the exhaust gases to around 90 ° C to 150 ° C.
  • a transfer fluid which can be directly condensed from the cycle, or a secondary circuit of pressurized water, thermal oil, mineral oil or others
  • the energy thus recovered is sent to a condensate preheater (8) which together with a condenser (9), a steam turbine (10) and a steam generator (1 1) form a Rankine cycle, where steam is generated for the steam turbine.
  • Exhaust gases from the low temperature recovery boiler (7) are sent to a chimney (12) for extraction.
  • the hybrid solar installation comprises a thermoelectric solar installation (1) with thermal storage, with central tower technology in this exemplary embodiment, and an auxiliary machine (2), preferably a machine thermal combustion, more preferably a gas turbine.
  • the elements are those described in the first embodiment, but without the presence of a reversible heat exchanger (5) between the heat transfer thermal fluid and the storage fluid, between the low temperature storage tanks (3) ( 4) and the thermoelectric solar installation (1).
  • the temperature of the high temperature storage tank (3) is higher than the temperature of the high temperature storage tank (3) for the first embodiment.

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)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

La présente invention concerne une installation hybride solaire qui permet la production d'électricité à partir de l'hybridation d'énergie solaire et d'un combustible approprié pour une utilisation dans un moteur et/ou une turbine, de préférence du gaz naturel, du GPL, du biogaz, du gaz de synthèse ou des combustibles liquides comme le diésel, le gasoil, le bio-kérosène, ou du carburant aviation, qui comprend une installation solaire thermoélectrique à stockage thermique, de préférence avec une technologie de tour centrale ou de canaux paraboliques et une machine auxiliaire, de préférence une machine thermique à combustion, de préférence encore une turbine à gaz ou un moteur qui fournit à l'installation hybride un haut degré de souplesse qui lui permet d'être complètement gérable et sûre.
PCT/ES2015/070487 2015-06-23 2015-06-23 Installation solaire hybride WO2016207449A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/ES2015/070487 WO2016207449A1 (fr) 2015-06-23 2015-06-23 Installation solaire hybride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2015/070487 WO2016207449A1 (fr) 2015-06-23 2015-06-23 Installation solaire hybride

Publications (1)

Publication Number Publication Date
WO2016207449A1 true WO2016207449A1 (fr) 2016-12-29

Family

ID=53879534

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2015/070487 WO2016207449A1 (fr) 2015-06-23 2015-06-23 Installation solaire hybride

Country Status (1)

Country Link
WO (1) WO2016207449A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107542631A (zh) * 2017-09-04 2018-01-05 中国华能集团清洁能源技术研究院有限公司 一种三罐储热式点‑线聚焦混合集热场太阳能热发电系统
CN110767323A (zh) * 2019-10-14 2020-02-07 中国科学院合肥物质科学研究院 一种用于核聚变装置的中间换热系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2925615A1 (de) * 1979-06-25 1981-02-12 Maschf Augsburg Nuernberg Ag Verfahren und vorrichtung zur energieumwandlung
US20120102950A1 (en) * 2010-11-02 2012-05-03 Alliance For Sustainable Energy, Llc. Solar thermal power plant with the integration of an aeroderivative turbine
WO2013018014A2 (fr) * 2011-08-02 2013-02-07 Brightsource Industries (Israel) Ltd. Systèmes, dispositifs et procédés de stockage thermique d'énergie solaire
WO2014123537A1 (fr) * 2013-02-08 2014-08-14 Skyfuel, Inc. Configurations de système à énergie hybride soleil/gaz et procédés d'utilisation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2925615A1 (de) * 1979-06-25 1981-02-12 Maschf Augsburg Nuernberg Ag Verfahren und vorrichtung zur energieumwandlung
US20120102950A1 (en) * 2010-11-02 2012-05-03 Alliance For Sustainable Energy, Llc. Solar thermal power plant with the integration of an aeroderivative turbine
WO2013018014A2 (fr) * 2011-08-02 2013-02-07 Brightsource Industries (Israel) Ltd. Systèmes, dispositifs et procédés de stockage thermique d'énergie solaire
WO2014123537A1 (fr) * 2013-02-08 2014-08-14 Skyfuel, Inc. Configurations de système à énergie hybride soleil/gaz et procédés d'utilisation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107542631A (zh) * 2017-09-04 2018-01-05 中国华能集团清洁能源技术研究院有限公司 一种三罐储热式点‑线聚焦混合集热场太阳能热发电系统
CN110767323A (zh) * 2019-10-14 2020-02-07 中国科学院合肥物质科学研究院 一种用于核聚变装置的中间换热系统

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