CN106196655A - A kind of solar energy thermal-power-generating displacement air heat extractor of many pocket surfaces - Google Patents
A kind of solar energy thermal-power-generating displacement air heat extractor of many pocket surfaces Download PDFInfo
- Publication number
- CN106196655A CN106196655A CN201610803966.8A CN201610803966A CN106196655A CN 106196655 A CN106196655 A CN 106196655A CN 201610803966 A CN201610803966 A CN 201610803966A CN 106196655 A CN106196655 A CN 106196655A
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- Prior art keywords
- canister
- solar energy
- cavity
- extinction
- heat
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
-
- 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
- F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/50—Preventing overheating or overpressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/10—Details of absorbing elements characterised by the absorbing material
- F24S70/16—Details of absorbing elements characterised by the absorbing material made of ceramic; made of concrete; made of natural stone
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- 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
- Y02E10/44—Heat exchange systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses the displacement air heat extractor of the many pocket surfaces of a kind of solar energy thermal-power-generating, including heat absorption carrier, thermal insulator and canister；It is characterized in that: thermal insulator is located at the outside of canister, the front opening of canister, and front end is provided with solar energy collecting portion, canister is provided with the inner space of air inlet pipe, escape pipe and extinction cavity, air inlet pipe and canister；Extinction cavity is located at the interior intracavity of canister, connects with solar energy collecting portion, the opening direction that extinction cavity projects towards solar energy；Described heat absorption carrier is located in canister；Canister inner chamber and heat absorption carrier form an airtight heat absorber cavity, and escape pipe connects with heat absorber cavity.The solar thermal energy receiving surface of the present invention arranges some extinction cavitys with pocket surfaces, by increasing capacitance it is possible to increase the foamed ceramics heat absorption carrier of porous media and the contact area of extinction cavity, improves heat conductivility；The radiation heat loss of heat extractor can be reduced simultaneously.
Description
Technical field
The invention belongs to solar light-heat power-generation high temperature air heat extractor technical field, be specifically related to a kind of solar energy
The heat generating displacement air heat extractor of many pocket surfaces.
Background technology
Solar light-heat power-generation technical field, owing to the energy-flux density of the Radiation resource of solar energy is low, it is impossible to carries out straight
The collection and utilization connect, often must carry out photothermal deformation in large-area solar energy gathers heat extractor, makes stream in heat extractor
Dynamic working medium obtains heat energy, High Temperature High Pressure working medium promote thermoelectric conversion device work, then realize being converted to solar energy
Electric energy exports.
Heat extractor is the core apparatus of solar energy working medium heat energy conversion, and the operation to whole solar energy thermo-power station is imitated
Rate impact is notable.In order to effectively promote the efficiency of solar light-heat power-generation, generally by improve air working medium pressure and
Temperature, this heat extractor being accomplished by configuration can bear High Temperature High Pressure.In high temperature solar air heat-absorbing device, apply more
Being displacement air heat extractor, he is the matrix utilizing three-dimensional porous dielectric material to constitute heat extractor structure, passes through porous media
Absorbed solar heat energy, and the air working medium flowed and matrix directly carry out heat convection, and then make air working medium obtain
Heat energy, this positive displacement heat extractor requires height when high-voltage operation to the sealing property of heat extractor structure.Additionally, due to condenser supplies
The solar energy density given is huge, and energy flow distribution is uneven, easily on the receiving plane of heat extractor or inside heat extractor
Porous media matrix forms high temperature difference, is easily caused the damage of heat extractor.
In terms of the high-voltage operation of displacement air heat extractor, have by heat extractor opening surface install quartz window and then
Form confined space, though a certain degree of raising operating pressure of energy, quartz window is under the effect of high moderate pressure, easily damages
Bad, and sealing effectiveness is limited.Closed structure is formed, such as prior art (CN also by by tight porous media material
101307956 A) in propose can reach using compact silicon carbide ceramic as pressure-bearing air chamber, the operating pressure of this kind of air heat-absorbing device
To more than 1Mpa, but the ruuning situation of 8 ~ 10 Mpa for high pressure, may more difficult adaptation.In the diabatic process of heat extractor,
It is to be received solar energy by the receiving plane within heat extractor, then relies on porous media carrier to carry out heat conduction transmission, and air
The heat energy transmission of Working fluid flow process, the Temperature Distribution of porous media carrier is uneven, is generally close to the temperature of receiving plane
Degree height, and the temperature of air working medium exit position is low.Temperature distributing disproportionation within heat extractor is even, is easily caused porous media material
The thermal ablation of material, and be there is certain impact in the heat exchange efficiency of internal air working medium.In order to effectively improve the equal of Temperature Distribution
Even property, the air working medium operating pressure of heat extractor and temperature, need to propose the displacement air heat extractor of new construction.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention provides a kind of exchange capability of heat enabling to air heat-absorbing device higher,
And can the solar energy thermal-power-generating displacement air heat extractor of many pocket surfaces of output high temperature and high pressure gas；This heat extractor by
In arranging some extinction cavitys, the Temperature Distribution of its internal porous media heat absorption carrier can be made evenly, and can have
The raising operational reliability of effect and thermal performance.
The technical solution used in the present invention is: a kind of solar energy thermal-power-generating displacement air of many pocket surfaces absorbs heat
Device, including heat absorption carrier, thermal insulator and canister；It is characterized in that: thermal insulator is located at the outside of canister, canister
Front opening, and front end is provided with solar energy collecting portion, and canister is provided with air inlet pipe, escape pipe and extinction cavity, air inlet
Pipe and the inner space of canister；Extinction cavity is located at the interior intracavity of canister, connects with solar energy collecting portion, extinction chamber
The opening direction that body projects towards solar energy；Described heat absorption carrier is located in canister；Canister inner chamber and heat absorption
Carrier forms an airtight heat absorber cavity, and escape pipe connects with heat absorber cavity.
Above-mentioned solar energy thermal-power-generating with in the displacement air heat extractor of many pocket surfaces, described solar energy collecting portion
For secondary condenser, secondary condenser is arranged on the front end of canister, and the outside of secondary condenser is provided with thermal insulator.
Above-mentioned solar energy thermal-power-generating is with in the displacement air heat extractor of many pocket surfaces, before described canister
End face is the composite cavity absorbed solar energy, and uniformly or carrys out cloth according to sunlight distribution situation on the curved surface of composite cavity
Put some extinction cavitys.
Above-mentioned solar energy thermal-power-generating is with in the displacement air heat extractor of many pocket surfaces, and the front end of secondary condenser sets
There is quartz window.
Above-mentioned solar energy thermal-power-generating with in the displacement air heat extractor of many pocket surfaces, described extinction cavity be by
Enter light section and the curved cavity of guide-lighting section combination composition.
Above-mentioned solar energy thermal-power-generating is with in the displacement air heat extractor of many pocket surfaces, and described canister uses
The materials such as resistant to elevated temperatures metal or resistant to elevated temperatures metal alloy are made.
Above-mentioned solar energy thermal-power-generating is with in the displacement air heat extractor of many pocket surfaces, and described heat absorption carrier is many
The foam silicon carbide ceramics of hole medium, described heat absorption carrier is arranged in the inner chamber front end of canister, heat absorption carrier and metal
The extinction housing surface of container fits tightly；Described extinction cavity front end and front end seal plate welding.
Above-mentioned solar energy thermal-power-generating with in the displacement air heat extractor of many pocket surfaces, described extinction cavity several
What shape can be cylindrical cavity, back taper chamber or combination chamber, and described combination chamber is to be combined by back taper structure and cylindrical cavity.
Above-mentioned solar energy thermal-power-generating is with in the displacement air heat extractor of many pocket surfaces, before described canister
End surfaces leaves gap with the afterbody of secondary condenser.
Above-mentioned solar energy thermal-power-generating is with in the displacement air heat extractor of many pocket surfaces, in described canister
Heat absorption carrier is made up of multistage, is provided with Turbogrid plates between adjacent two sections, and described Turbogrid plates are provided with some circular holes.
Compared with prior art, the invention has the beneficial effects as follows:
1, present invention employs resistant to elevated temperatures canister so that internal air working medium can be operated in higher pressure and height
Under the conditions of temperature, effectively improve the follow-up acting ability of working medium.
2, the solar thermal energy receiving surface of the present invention arranges some extinction cavitys with pocket surfaces, it is possible to make gathering
Solar energy transmit along pocket surfaces, the foamed ceramics heat absorption carrier of porous media and extinction cavity can be increased
Contact area, contributes to promoting heat conductivility.And the pocket surfaces of extinction cavity easily forms Hohlraum radiation, contribute to reducing and inhale
The radiation heat loss of hot device.
3, the present invention can be in conjunction with the solar energy distribution situation of gathering, the position of preferred arrangement extinction cavity, so that
Uniformity of temperature profile within heat extractor；Owing to extinction cavity is inserted in the inside of heat absorption carrier, effectively improve heat absorption and carry
The thermal response effect of body, also improves the temperature homogeneity of heat absorption carrier simultaneously, effectively promotes the heat-exchange performance of inner air working medium
Energy.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiments of the invention 1.
Fig. 2 is the structural representation of embodiments of the invention 2.
Fig. 3 is the metal container structures schematic diagram of embodiments of the invention 1 and embodiment 2.
Fig. 4 is the structural representation of embodiments of the invention 3.
Fig. 5 is the structural representation of the cylindrical cavity extinction cavity of the present invention.
Fig. 6 is the structural representation of the back taper chamber extinction cavity of the present invention.
Fig. 7 is the structural representation of the combination chamber extinction cavity of the present invention.
1 thermal insulator, 2 air inlet pipe, 3 metal shells, 4 Turbogrid plates, 5 air inlet pipe, 6 escape pipes, 7 heat absorptions
Device cavity, 8 volume heat extractors, 9 extinction cavitys, 10 secondary condenser, 11 quartz windows, 12 enter light section, and 13 lead
Light section, end-plate before 14,15 composite cavities.
Detailed description of the invention
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
Embodiment 1
As it is shown in figure 1, the present invention includes for assembling the secondary condenser 10 of solar energy, heat absorption carrier 5, thermal insulator 1 and shape
Become the canister 3 of airtight heat absorber cavity 7.The front opening of canister 3, and the rear end of front end and secondary condenser 10
Connect.The outside of canister 3 and secondary condenser 10 is provided with thermal insulator 1.Canister 3 be provided with air inlet pipe 2, escape pipe 6,
Extinction cavity 9 and front end-plate 14, air inlet pipe 2 and the inner space of canister；Extinction cavity 9 is located at the interior of canister 3
Intracavity, connects with secondary condenser 10, the opening direction that extinction cavity 9 projects towards solar energy, the front end of extinction cavity 9 with
Front end-plate 14 welds.Described heat absorption carrier 5 is arranged in the inside of canister 3, is close to canister 3 and extinction cavity
The surface of 9.Canister 3 inner chamber and heat absorption carrier 5 form an airtight heat absorber cavity 7, escape pipe (6) and heat absorber cavity
7 connections.Described extinction cavity 9 is by entering light section 12 and guide-lighting section 13 combination constitutes curved cavity, described extinction cavity 9 edge
Canister 3 front end face receives the surface of solar energy and is evenly arranged, and for receiving the solar energy of gathering, makes solar energy exist
The inner re-entrant surfaces of extinction cavity 9 carries out reflecting or diffuse-reflectance transmission.
As shown in figures 1 and 3, described canister 3 uses the resistant to elevated temperatures metal such as rustless steel, tungsten or resistant to elevated temperatures gold
Belonging to the materials such as alloy, the extinction cavity 9 of described canister 3 directly receives parabolic dish type condenser or secondary condenser 10 is anti-
Penetrating the solar energy of gathering, extinction cavity 9 is positioned at canister 3 front end face, and extinction cavity 9 is towards opening that solar energy projects
Mouth position.
Described heat absorption carrier 5 is the foam silicon carbide ceramics of porous media, and described heat absorption carrier 5 is arranged in airtight
In heat absorber cavity 7, during molding, heat absorption carrier 5 fits tightly with extinction cavity 9 surface of canister 3, strengthens
The capacity of heat transmission；Described extinction cavity 9 and front end-plate 14 welding fabrication, form hermetic container.
The light inlet position, front end of described secondary condenser 10 is provided with quartz window 11, reduces the convection current heat waste of heat extractor
Lose；Described thermal insulator 1 is wrapped in canister 3 and the outside of secondary condenser 10, reduces heat loss.
The described heat absorption carrier 5 in canister 3 is made up of multistage, is provided with Turbogrid plates 4, institute between adjacent two sections
Being provided with some circular holes on the Turbogrid plates 4 stated, the arrangement principle of circular hole is to ensure that air working medium flowing in canister 3 is changed
Heat energy power strengthens, and the temperature making air working medium is higher.
Embodiment 2
As in figure 2 it is shown, its structure is similar to Example 1, differ only in canister 3 front end can also and secondary condenser
Gap L is left, it is ensured that the energy flow distribution of the front-end surface of canister 3 is uniform between the afterbody of 10.
Embodiment 3
As shown in Figure 4, its structure is similar to Example 1, simply the secondary condenser 10 being used for assembling solar energy is replaced with
The composite cavity 15 being arranged in canister 3, uniform or according to sunlight on the basis of the surface geometry of composite cavity 15
Distribution situation arranges some extinction cavitys 9.
As illustrated in figs. 5-7, the geometry of described extinction cavity 9 can be cylindrical cavity, back taper chamber and combination chamber, described
Combination chamber be to be combined by back taper structure and cylindrical cavity.
Present invention employs resistant to elevated temperatures canister 3 and form enclosed volume so that internal air working medium can work
Under higher pressure and hot conditions, effectively improve the follow-up acting ability of working medium；The present invention receives at solar thermal energy
Surface arranges some extinction cavitys 9 with pocket surfaces, it is possible to make the solar energy of gathering pass along pocket surfaces
Pass, the foamed ceramics heat absorption carrier 5 of porous media and the contact area of extinction cavity 9 can be increased, contribute to promoting heat conductivity
Energy.And the pocket surfaces of extinction cavity 9 easily forms Hohlraum radiation, contribute to reducing the radiation heat loss of heat extractor；Additionally, can
In conjunction with the solar energy distribution situation assembled, the position of preferred arrangement extinction cavity 9, so that the temperature within the present invention is divided
Cloth is uniform；Owing to extinction cavity 9 is inserted in the inside of heat absorption carrier 5, effectively improve the thermal response effect of heat absorption carrier 5,
Also improve the temperature homogeneity of heat absorption carrier 5 simultaneously, effectively promote the heat exchange property of inner air working medium.
Claims (10)
1. a solar energy thermal-power-generating displacement air heat extractor for many pocket surfaces, including heat absorption carrier (5), thermal insulator
And canister (3) (1)；It is characterized in that: thermal insulator (1) is located at the outside of canister (3), the front end of canister (3)
Opening, and front end is provided with solar energy collecting portion, canister (3) is provided with air inlet pipe (2), escape pipe (6) and extinction cavity
(9), air inlet pipe (2) and the inner space of canister；Extinction cavity (9) is located at the interior intracavity of canister (3), with solar energy
Gathering portion connects, the opening direction that extinction cavity (9) projects towards solar energy；Described heat absorption carrier (5) is located at metal to be held
In device (3)；Canister (3) inner chamber and heat absorption carrier (5) form an airtight heat absorber cavity (7), escape pipe (6) and heat absorption
Device cavity (7) connects.
The solar energy thermal-power-generating the most according to claim 1 displacement air heat extractor of many pocket surfaces, is characterized in that:
Described solar energy collecting portion is secondary condenser (10), and secondary condenser (10) is arranged on the front end of canister, and secondary gathers
The outside of light device (10) is provided with thermal insulator.
The solar energy thermal-power-generating the most according to claim 1 displacement air heat extractor of many pocket surfaces, is characterized in that:
The front end face of described canister (3) is the composite cavity (15) absorbed solar energy, on the curved surface of composite cavity (15)
Uniformly or arrange some extinction cavitys (9) according to sunlight distribution situation.
The solar energy thermal-power-generating the most according to claim 2 displacement air heat extractor of many pocket surfaces, is characterized in that:
The front end of secondary condenser (10) is provided with quartz window (11).
The solar energy thermal-power-generating the most according to claim 1 displacement air heat extractor of many pocket surfaces, is characterized in that:
Described extinction cavity (9) is by entering light section (12) and guide-lighting section (13) combines the curved cavity constituted.
The solar energy thermal-power-generating the most according to claim 1 displacement air heat extractor of many pocket surfaces, is characterized in that:
Described canister (3) uses the materials such as resistant to elevated temperatures metal or resistant to elevated temperatures metal alloy to make.
The solar energy thermal-power-generating the most according to claim 1 displacement air heat extractor of many pocket surfaces, is characterized in that:
Described heat absorption carrier (5) is the foam silicon carbide ceramics of porous media, and described heat absorption carrier (5) is arranged in canister
(3) inner chamber front end, heat absorption carrier (5) fits tightly with extinction cavity (9) surface of canister (3)；Described extinction chamber
Body (9) front end is welded with front end-plate (14).
The solar energy thermal-power-generating the most according to claim 1 displacement air heat extractor of many pocket surfaces, is characterized in that:
The geometry of described extinction cavity (9) can be cylindrical cavity, back taper chamber or combination chamber, and described combination chamber is to be tied by back taper
Structure and cylindrical cavity combine.
The solar energy thermal-power-generating the most according to claim 2 displacement air heat extractor of many pocket surfaces, is characterized in that:
The front-end surface of described canister (3) and the afterbody of secondary condenser (10) leave gap.
The solar energy thermal-power-generating the most according to claim 1 displacement air heat extractor of many pocket surfaces, its feature
It is: the described heat absorption carrier (5) in canister (3) is made up of multistage, is provided with Turbogrid plates (4) between adjacent two sections,
It is provided with some circular holes on described Turbogrid plates (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610803966.8A CN106196655B (en) | 2016-09-06 | 2016-09-06 | A kind of displacement air heat dump of the more pocket surfaces of solar energy thermal-power-generating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610803966.8A CN106196655B (en) | 2016-09-06 | 2016-09-06 | A kind of displacement air heat dump of the more pocket surfaces of solar energy thermal-power-generating |
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| CN106196655A true CN106196655A (en) | 2016-12-07 |
| CN106196655B CN106196655B (en) | 2017-12-08 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440418A (en) * | 2016-12-07 | 2017-02-22 | 福建工程学院 | Glass tube bundle and porous medium composite structure solar absorber |
| CN109813169A (en) * | 2019-03-25 | 2019-05-28 | 湖南科技大学 | A kind of elastic tube bundle vibration enhancing heat exchange type solar energy cavity heat absorber |
| CN109812997A (en) * | 2019-03-21 | 2019-05-28 | 湖南科技大学 | A kind of runner and the integrated band heat-accumulation solar cavity heat absorber of cavity wall |
| CN109855314A (en) * | 2018-11-26 | 2019-06-07 | 福建工程学院 | A kind of light guide structure solar heat absorber |
| CN109883064A (en) * | 2019-02-01 | 2019-06-14 | 南京航空航天大学 | A kind of solar thermal collector |
| CN113154708A (en) * | 2021-04-15 | 2021-07-23 | 东南大学 | Packed bed heat collection and storage device with cavity absorber |
| CN114440476A (en) * | 2022-02-28 | 2022-05-06 | 湖南科技大学 | Positive displacement solar heat absorber |
| CN114543058A (en) * | 2022-02-25 | 2022-05-27 | 中国科学院电工研究所 | High-temperature steam generator based on solar energy |
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| CN206073482U (en) * | 2016-09-06 | 2017-04-05 | 湖南科技大学 | A kind of displacement air heat extractor of solar energy thermal-power-generating with many pocket surfaces |
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| DE19952174A1 (en) * | 1999-10-29 | 2001-05-10 | Bathen Dieter | A solar energy reactor vessel has an immersed receiver body in the reaction material container having additional fossil fuel energized heating. |
| CN101307956A (en) * | 2008-06-24 | 2008-11-19 | 中国科学院电工研究所 | Solar energy electricity power station bearing type air thermal absorber |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106440418A (en) * | 2016-12-07 | 2017-02-22 | 福建工程学院 | Glass tube bundle and porous medium composite structure solar absorber |
| CN109855314A (en) * | 2018-11-26 | 2019-06-07 | 福建工程学院 | A kind of light guide structure solar heat absorber |
| CN109883064A (en) * | 2019-02-01 | 2019-06-14 | 南京航空航天大学 | A kind of solar thermal collector |
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| CN109812997B (en) * | 2019-03-21 | 2023-11-10 | 湖南科技大学 | Flow passage and cavity wall integrated solar cavity heat absorber with heat storage function |
| CN109813169A (en) * | 2019-03-25 | 2019-05-28 | 湖南科技大学 | A kind of elastic tube bundle vibration enhancing heat exchange type solar energy cavity heat absorber |
| CN109813169B (en) * | 2019-03-25 | 2023-10-24 | 湖南科技大学 | Elastic tube bundle vibration enhanced heat exchange type solar cavity heat absorber |
| CN113154708A (en) * | 2021-04-15 | 2021-07-23 | 东南大学 | Packed bed heat collection and storage device with cavity absorber |
| CN114543058A (en) * | 2022-02-25 | 2022-05-27 | 中国科学院电工研究所 | High-temperature steam generator based on solar energy |
| CN114440476A (en) * | 2022-02-28 | 2022-05-06 | 湖南科技大学 | Positive displacement solar heat absorber |
| CN114440476B (en) * | 2022-02-28 | 2023-06-23 | 湖南科技大学 | Volumetric solar heat absorber |
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| CN106196655B (en) | 2017-12-08 |
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