WO2018167805A1 - Système de production d'énergie solaire et de capture de chaleur fondé sur des cellules pliables et gonflables - Google Patents

Système de production d'énergie solaire et de capture de chaleur fondé sur des cellules pliables et gonflables Download PDF

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Publication number
WO2018167805A1
WO2018167805A1 PCT/IN2018/050152 IN2018050152W WO2018167805A1 WO 2018167805 A1 WO2018167805 A1 WO 2018167805A1 IN 2018050152 W IN2018050152 W IN 2018050152W WO 2018167805 A1 WO2018167805 A1 WO 2018167805A1
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WO
WIPO (PCT)
Prior art keywords
fluid
inflatable collapsible
power generation
icc
turbine
Prior art date
Application number
PCT/IN2018/050152
Other languages
English (en)
Inventor
Laxman Shridhar KANE
Original Assignee
Kane Laxman Shridhar
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 Kane Laxman Shridhar filed Critical Kane Laxman Shridhar
Publication of WO2018167805A1 publication Critical patent/WO2018167805A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/50—Rollable or foldable solar heat collector modules
    • F24S20/55—Rollable or foldable solar heat collector modules made of flexible materials
    • 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
    • F03G6/064—Devices for producing mechanical power from solar energy with solar energy concentrating means having a gas turbine cycle, i.e. compressor and gas turbine combination
    • 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

  • This invention relates to a power generation systems and more particularly, to an inflatable collapsible cells based solar power generation and heat capturing system.
  • Non-renewable energy sources include coal, fossil fuels, natural gas and the like. Electricity generation from non- renewable sources cause damage to the 3 ⁇ 4 environment and the sources have limited availability.
  • Renewable energy sources include wind energy, tidal energy, solar energy and the like. There exist different mechanisms and methods to use these sources for generation of electricity. The existing technologies include rotating a turbine using wind energy or tidal energy.
  • the present invention relates to an inflatable collapsible cell 3 ⁇ 4 (ICC) based solar power generation and heat capturing system that includes a plurality of ICC adapted to receive an ambient fluid through inlet valve between the ICC and at least one compressor.
  • an ambient air is used as a fluid.
  • Each ICC has an outlet valve that supplies hot fluid (under pressure) to at least one turbine positioned in proximity thereof.
  • the hot fluid 3 ⁇ 4 passes over the turbine connected to a generator thereby rotating the turbine in order to generate electricity.
  • the utilized fluid is passed through an exhaust heat recovery unit before being released to the atmosphere.
  • the present invention provides a method of operating an inflatable collapsible cell (ICC) based solar power generation and heat capturing ttl system that includes an initial step of inflating an ICC using compressed fluid from a compressed fluid storage tank or directly from a compressor until a predefined low volume limit is reached. In this stage, the inletvalve and the outlet valve remain closed. In a next step, the ICC is exposed to solar incident radiation to heat the fluid contained therein. In the next step, the ICC expands to a t& maximum volume limit at which the fluid pressure reaches a predefined high pressure limit. In this step, the outlet valve is opened and the inlet valve remains closed.
  • ICC inflatable collapsible cell
  • the high temperature and pressure fluid is released into a hot fluid conduit through the outlet valves thereby deflating the ICC in final step.
  • the ICC that are deflated below the low volume limit are then inflated back to low volume limit using the compressed fluid from the compressed fluid storage tank or directly from the compressor.
  • FIG. 1 shows a top view of a system in accordance with an embodiment of the present invention
  • F IG . 2 shows a front vi ew of the system of F IG . 1 ;
  • FIG. 3 shows a schematic diagram of a system in accordance with another embodi ment of the present i nventi on;
  • FIG. 4 shows a schematic diagram of a system of the present invention in accordance with another embodiment of the present invention.
  • FIG. 5 shows the system of the present invention in accordance with yet another embodi ment of the present i nventi on;
  • FIG. 6 is a graphical representation showing operation cycle of single Inflatable 3 ⁇ 4 Collapsible Cell in accordance with an embodiment of the present invention
  • FIG. 7 is a graphical representation showing operation cycle of four ICCs in accordance with an embodiment of the present invention.
  • FIG. 8 shows a supplementary structure of a collapsible ICC in another embodiment of the present invention.
  • the present invention discloses a solar power generation and heat capturing system that includes at least one inflatable collapsible cell, a compressor, a compressed fluid storage, a cold fluid conduit, a hot fluid conduit,
  • the compressor receives a fluid, followed by compression and storage thereof in the compressed fluid storage.
  • the compressed fluid storage passes the fluid to the cold fluid conduit.
  • the inflatable collapsible cell has at least two valves. The fluid is drawn into the inflatable collapsible cell up to a predefined lower volume limit through an inlet valve thereof.
  • 3 ⁇ 4 surface of the inflatable collapsible cell is coated with a material that has high capacity of solar radiation absorption.
  • the fluid drawn inside the inflatable collapsible cell gets heated by the solar radiations and ICC expands upto a limit and further heating leads to increase in pressure inside the inflatable collapsible cell. As the pressure reaches a predefined maximum pressure and volume limit,
  • the fluid is released in the hot fluid conduit through an outlet valve of the inflatable collapsible cell.
  • the hot fluid conduit passes the hot fluid on the turbine.
  • the hot fluid expands over the turbine that drives the generator and results into generation of electricity.
  • the expanded hot fluid may be vented to the atmosphere, fresh fluid is compressed and fed back to the inflatable collapsible ttl cells.
  • references in the specification to ' one embodiment , or ' an embodiment mean that a particular feature, structure, characteristic, or function described in connection with the embodiment is included in at least one embodiment of the invention.
  • the appearances of the phrase ⁇ one embodiment , in various places t& i n the specif i cati on are not necessari ly al I ref erri ng to the same embodi ment.
  • FIG. 1 and 2 an inflatable collapsible cells based solar power generation and heat capturing system of the present invention in accordance with an embodiment is shown.
  • the system (100) includes a compressor (102), a compressed fluid storage (104), a cold fluid conduit (106), at least one inflatable 3 ⁇ 4 collapsible cell (hereinafter ' the ICC (108) _), a hot fluid conduit (110), at least one turbine (112), a generator (114) and an exhaust heat recovery unit (116).
  • two ICCs (108) are connected to the compressor (102) that drive one turbine (112) connected to the generator (114).
  • ICCs (108), the compressor (102), the turbine (112) and the 3 ⁇ 4 generator (114) may vary in alternative embodiments of the present invention.
  • ambient air is used as a fluid.
  • any other gas or liquid may be used in alternative embodiments of the present invention.
  • FIG. 3 a schematic diagram of the inflatable collapsible cells 3 ⁇ 4 based solar power generation and heat recovery system in accordance with another embodiment is shown.
  • a plurality of ICC (108) are interconnected, integrated and controlled in a predefined configuration.
  • number of ICC (108) may vary in alternative embodiments of the present invention.
  • the compressed fluid is introduced in the i l ICC (108) by the compressor (102) through the inlet valve (107).
  • the compressor (102) is connected to the compressed fluid storage tank (104).
  • the compressed fluid storage (104) is connected to the cold fluid conduit (106).
  • the cold fluid conduit (106) is connected to an inlet valve (107) of the ICC (108).
  • t& An outlet valve of the ICC (109) is connected to the hot fluid conduit
  • the hot fluid conduit (110) receives the hot fluid from the outlet valve of ICC (108) and supplies to the turbine (112) positioned within close proximity thereof. However, it is understood here that the hot fluid may be passed over the turbine directly from the ICC (108) using exhaust gas opening (not shown).
  • the ffl, turbi ne ( 112) is connected to the generator (114) for generati on of el ectri city. T he fluid utilized by the turbine (112) is passed through the exhaust heat recovery unit (116) before passing to the atmosphere.
  • the ICCs (108) and other components of the system are connected to each other by conveying/ pipe members (113).
  • the compressor (102) receives the fluid from the predetermined source.
  • the compressor (102) may be driven by a motor (101) or a similar power source.
  • the compressor (102) compresses the fluid that is stored in the compressed fluid storage (104).
  • the compressed fluid storage (104) supplies the compressed fluid to the cold fluid conduit (106).
  • the cold fluid conduit (106) 3 ⁇ 4 distributes the compressed fluid to the ICC (108).
  • eight ICC (108) are connected to the cold fluid conduit (106).
  • the number of ICC (108) and the cold fluid conduit (106) may vary in alternative embodiments of the system (100).
  • ach of the IC C ( 108) has at I east two valves, namely the i nl et valve ( 107) and the outlet valve (109).
  • the inlet valve (107) draws compressed fluid to the ICC (108) such that the compressed fluid is drawn in the ICC (108) up to a predefined lower volume limit.
  • the inlet valve (107) automatically closes as the predefined lower volume limit is reached.
  • the valves (107), (109) are controlled ttl based on the inputs from a plurality of sensors (111) installed on the ICC (108).
  • each ICC (109) are operated for integration of ICC (108) for optimized electricity generation. It is to be noted here that opening and closing of the inlet and outlet t& valves (107), (109) of the ICC (108) may also be coordinated using mechanisms such as pneumatic, mechanical, electro- mechanical, electrical and the like. Coordination and communication between the ICC (108) may be carried out by using abovementioned modes. Advanced logics and automation may be employed to coordinate and communicate between the ICC (108) to optimize the power ffl, generation An outer surface of each ICC (108) is coated with a material having solar radiation absorbing capacity. In this one embodiment each ICC (108) is covered with a safety net (103) that may be spring loaded in order to gain operational advantage for the ICC (108).
  • a safety net (103) that may be spring loaded in order to gain operational advantage for the ICC (108).
  • the safety net (103) is covered with a wind shield 3 ⁇ 4 ( 105) on the outer surface thereof to protect the IC C ( 108) from surroundi ng f I ui d flow.
  • the safety net (103) and the wind shield (105) are anchored to a ground by using a plurality of anchors (115).
  • the wind shield (105) is made up of a material which transmits majority of the solar radiation.
  • the ICC (108) may be coloured in black or made up of a material so as to 3 ⁇ 4 absorb sol ar radi ati ons to greater amount.
  • the fluid inside the ICC (108) gets heated as the ICC (108) absorb solar radiations. Increase in temperature of fluid leads to increase in pressure of the ICC (108).
  • the outlet valve (109) of the ICC (108) opens as the pressure is reached to a predefined Maximum volume limit (high pressure).
  • 3 ⁇ 4 Maximum volume limit volume of the ICC (108) is from about 5m 3 to about 15000m 3 .
  • the maximum internal pressure in the ICC (108) is from about 200 Pascals to about 8000 Pascals. It is to be noted here that the Maximum volume limit, Low volume limit, temperature and pressure may vary with respect to size and number of IC C s ( 108) used i n the system ( 100) .
  • the hot fluid (under pressure) is passed over the turbine (112) positioned in a predefined proximity thereof.
  • the hot fluid is drawn into the hot fluid conduit (110) that is connected to the outlet valves (109) of the ICC (108).
  • the hot fluid conduit (110) supplies the hot fluid to the turbine (112) such that the hot fluid expands over the turbines (112) in order to rotate the t& turbi ne ( 112) .
  • T he turbi ne ( 112) is connected to the generator ( 114) such that the generator (114) generates electricity as per rotation of the turbine (112).
  • system (100) includes single turbine (112) that is subjected to the hot fluid.
  • the utilized fluid is passed through the exhaust ffl, fluid recovery unit (116) before being released to the atmosphere for reducing temperature thereof.
  • the exhaust heat recovery unit (116) is adapted to absorb excess heat of the utilized fluid and utilize the heat for suitable applications.
  • the utilized fluid may be used for Industrial usage such as drying, pre-heating, waste heat
  • the utilized hot fluid discharged from the turbine (112) may be recirculated through the compressor (102) to inflate the deflated ICC or ICC (108).
  • the system (100) of the present invention may be integrated with heat recovery system from using exhausted hot fluid from the turbine (112) for
  • the turbine (112) and the exhaust heat recovery unit (116) include a secondary turbine (202) is positioned there between.
  • 3 ⁇ 4 system (100) facilitates the utilised fluid to pass over the secondary turbine (202) instead of being passed through the exhaust fluid recovery unit (116).
  • the secondary turbine (202) is positioned in close proximity to exhaust fluid outlet (not shown).
  • the hot fluid expands over the secondary turbi ne (202) i n order to rotate the secondary turbi ne (202) .
  • T he turbi ne ttl (202) is connected to the generator (not shown) to generate the electricity in addition to the primary generator (114).
  • position and number of the secondary turbines (202) and primary generator (114) may vary in alternative embodiments of the present invention.
  • the secondary turbine (202) may be connected to the same generator to which turbine (112) is connected.
  • the system (100) may be implemented in the waterbody such that the ICC (108) are placed in the waterbody and rest of the components of system (100) may be setup on the land.
  • ICC (108) may be anchored to the floor or bed of a waterbody to avoid excessive movements of the floating ICC (108).
  • the compressor (102), the compressed fluid storage (104), the cold fluid conduit (106), the hot fluid conduit (110), the at least one turbine (112) and the generator (114) are setup on the land onshore in this one alternative embodiment.
  • 5 3 ⁇ 4 may be I ocated offshore i n the water body by usi ng a pi atf orm, a f I oati ng structure and the like, in case the ICCs (108) are located long distance away from the shore of a waterbody.
  • the system (100) may be installed entirely on ground or partly on water and partly on ground or entirely on water.
  • a secondary turbine (not shown) may be implemented at hot fluid exhaust outlet (not Shown) in order to utilise 3 ⁇ 4 used hot fluid.
  • number of the ICCs (108), the turbine (112) and the secondary turbine may vary in alternative embodiments.
  • FIGS. 1 and 6 operational graphical representation of the system (100) with a single ICC (108) is shown. Initially, the ICC (108) is in fully
  • the ICC (108) is inflated using compressed fluid until a predefined low volume limit at stage (2).
  • the deflated ICC (108) is inflated using compressed fluid from a compressor (102) driven by the motor (101).
  • the inlet valve (107) is opened and the outlet valve (109) remains closed at this stage (3).
  • the ICC (108) is exposed to solar incident radiation that heats up
  • the lCC (108) expands to a Maximum V olume Limit. If the ICC (108) is heated further, the fluid pressure reaches to a predefined high pressure limit at stage (5).
  • outlet valve (109) is opened whereas the inlet valve (107) remains closed.
  • the opening and closing of the inlet valve (107) and the outlet valve (109) is controlled by using at least one t& sensor (111). In this one embodiment, a plurality of sensor is positioned at required locations on the ICC (108). The high temperature and pressure fluid is released into the hot fluid conduit (110) that deflates the ICC (108).
  • the maximum temperature limit is upto 150° C and maximum pressure limit is from to 200 Pascals to about 8000 Pascals.
  • the ICC (108) deflates below the Low volume limit at stages (6-7), that is then inflated back to Low volume limit (3) using the compressed fluid from the compressed fluid storage tank (104) or directly from the compressor (102).
  • the ICC 3 ⁇ 4 ( 108) i s i nf I ated from stages 6 to 3 i n such a way that the mass of f I ui d i n the IC C (108) is maintained at the predefined level.
  • FIGS. 1 and 7 operational graphical representation of the system (100) with four ICCs (108) is shown.
  • the ICCs (108) generate electricity continuously by inflating and deflating in periodic overlapping sequence wherein, 3 ⁇ 4 P1 represents power generation cycle of first ICC (108), P2 represents power generation cycle of second ICC (108), P3 represents power generation cycle of third ICC (108), P4 represents power generation cycle of fourth ICC(108).
  • the system (100) may include one ICC (108) or a plurality of ICC (108) working in a predefined sequence.
  • 3 ⁇ 4 ICC (108) may be implemented with other components mentioned in the description or a plurality of ICC (108) is interconnected to each other as well as other component of the system (100).
  • the hot fluid from all the ICC (108) is received in hot fluid conduit and passed over the turbine (112) such that the turbine (112) is kept rotated continuously.
  • the ICC (108) are inflated and deflated sequentially such that the hot air is directly passed on the turbine (112) by either of the ICC (108) such that the turbine (108) is kept rotating continuously thereby having uninterrupted electricity generation.
  • the ICC (108) may be advantageously implemented by using springs (802), hydraulic cylinders and the like. Such implements are used for exerting force that opposes the pressure force trying to expand the ICC (108). This may help in enhancing power generation capacity of the ICC (108).
  • the fluid inside the ICC (108) expands against the spring tension thereby leading to increase pressure in the ICC (108).
  • the spring helps to contract the ICC (108) to the original size thereof during the power cycle, resulting in higher hot fluid flow rate through the ICC (108) outlet.
  • the enhanced pressure and higher 3 ⁇ 4 flow rate helps in enhancing the power output from the ICC (108).

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

La présente invention concerne un système de production d'électricité comprenant une pluralité de cellules pliables et gonflables (ICC selon l'abréviation anglo-saxonne) (108), les cellules étant inter-reliées, intégrées et commandées en fonction des données d'un capteur (111) pour la production d'énergie ininterrompue optimisée à l'aide de techniques d'automatisation avancées. Les ICC (108) sont gonflées par remplissage d'un fluide comprimé à travers un compresseur (102) jusqu'à une limite de volume prédéfinie. Les ICC (108) sont ensuite exposées aux rayonnements solaires, ce qui conduit à une expansion du fluide à l'intérieur des ICC (108). Le fluide chaud est libéré à une température et à une pression prédéfinies sur une turbine (112) placée à proximité immédiate, faisant ainsi tourner la turbine (112) afin de produire de l'électricité au moyen d'un générateur (114). Le fluide chaud utilisé est passé à travers une unité (116) de récupération de fluide d'évacuation, conçue pour absorber l'excès de chaleur du fluide utilisé et pour utiliser la chaleur pour des applications appropriées.
PCT/IN2018/050152 2017-03-16 2018-03-16 Système de production d'énergie solaire et de capture de chaleur fondé sur des cellules pliables et gonflables WO2018167805A1 (fr)

Applications Claiming Priority (2)

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IN201721009136 2017-03-16
IN201721009136 2017-03-16

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WO2018167805A1 true WO2018167805A1 (fr) 2018-09-20

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415719A (en) * 1966-05-11 1968-12-10 Melpar Inc Collapsible solar still with water vapor permeable membrane
CN201556633U (zh) * 2009-03-31 2010-08-18 胡俊 可折叠充气式太阳能薄膜电池
US20100229850A1 (en) * 2007-01-10 2010-09-16 Rsv Invention Enterprises Inflatable heliostatic solar power collector
WO2011113413A1 (fr) * 2010-03-03 2011-09-22 Solardynamik Gmbh Système support dynamique pour cellules solaires flexibles ou fixes aux fins d'une production d'électricité optimale et autarcique à l'aide d'air comprimé et de la technologie de détecteurs à base de polymères

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415719A (en) * 1966-05-11 1968-12-10 Melpar Inc Collapsible solar still with water vapor permeable membrane
US20100229850A1 (en) * 2007-01-10 2010-09-16 Rsv Invention Enterprises Inflatable heliostatic solar power collector
CN201556633U (zh) * 2009-03-31 2010-08-18 胡俊 可折叠充气式太阳能薄膜电池
WO2011113413A1 (fr) * 2010-03-03 2011-09-22 Solardynamik Gmbh Système support dynamique pour cellules solaires flexibles ou fixes aux fins d'une production d'électricité optimale et autarcique à l'aide d'air comprimé et de la technologie de détecteurs à base de polymères

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