WO2018123348A1 - 太陽光利用システム - Google Patents
太陽光利用システム Download PDFInfo
- Publication number
- WO2018123348A1 WO2018123348A1 PCT/JP2017/041716 JP2017041716W WO2018123348A1 WO 2018123348 A1 WO2018123348 A1 WO 2018123348A1 JP 2017041716 W JP2017041716 W JP 2017041716W WO 2018123348 A1 WO2018123348 A1 WO 2018123348A1
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- WO
- WIPO (PCT)
- Prior art keywords
- solar
- energy
- glass
- heat medium
- heat collector
- Prior art date
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- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 238000002834 transmittance Methods 0.000 claims abstract description 10
- 238000010521 absorption reaction Methods 0.000 claims description 31
- 230000006870 function Effects 0.000 claims description 27
- 239000011521 glass Substances 0.000 abstract description 124
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 239000006096 absorbing agent Substances 0.000 description 13
- 238000010248 power generation Methods 0.000 description 13
- 230000005855 radiation Effects 0.000 description 12
- 239000003507 refrigerant Substances 0.000 description 12
- 238000001704 evaporation Methods 0.000 description 8
- 230000008020 evaporation Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000005357 flat glass Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 229920000515 polycarbonate Polymers 0.000 description 1
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- 238000011069 regeneration method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
Images
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
- F24S10/60—Solar heat collectors using working fluids the working fluids trickling freely over absorbing elements
-
- 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
- F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
-
- 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
- F24S20/60—Solar heat collectors integrated in fixed constructions, e.g. in buildings
- F24S20/63—Solar heat collectors integrated in fixed constructions, e.g. in buildings in the form of windows
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/30—Thermophotovoltaic systems
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
-
- 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
-
- 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
- Y02E10/50—Photovoltaic [PV] energy
Definitions
- the present invention relates to a sunlight utilization system.
- Patent Documents 1 to 3 it is necessary to take in a large amount of solar energy in order to obtain a large amount of electric energy and thermal energy. Is preferred.
- a glass having a high transmittance of natural light easily transmits far infrared rays from the room to the outside, and is inferior in terms of heat insulation in the room. For this reason, the room for improvement was left about energy-saving performance.
- the present invention has been made to solve such a problem, and an object thereof is to provide a solar light utilization system capable of improving the energy saving performance.
- the solar light utilization system includes an energy receiver, an indoor transparent member, and an energy utilization device.
- the energy receiver is provided on the inner side with respect to the transparent part of the building, and receives solar energy to obtain at least one of electric energy and thermal energy.
- the indoor transparent member is provided on the indoor side of the building with respect to the energy receiver, and the energy utilization device uses energy from the energy receiver indoors. Further, the above-mentioned indoor-side transparent member is subjected to a far-infrared cut treatment in which the far-infrared absorption / emissivity and transmittance of at least a wavelength of 9 ⁇ m to 10 ⁇ m are both 20% or less.
- the far-infrared cut member is provided with the indoor-side transparent member, it is difficult for far-infrared rays from the indoor side to be radiated outdoors without hindering the arrival of solar energy to the energy receiver. be able to. Therefore, it is possible to improve indoor heat insulation while securing the utility of solar energy, and to improve energy saving performance.
- FIG. 1 is a configuration diagram showing a sunlight utilization system according to the first embodiment of the present invention.
- FIG. 2 is a detailed configuration diagram of the pressure absorbing unit shown in FIG.
- FIG. 3 is a configuration diagram showing a solar light utilization system according to the second embodiment.
- FIG. 1 is a configuration diagram showing a sunlight utilization system according to the first embodiment of the present invention.
- FIG. 1 shows an example in which the solar system is used on the middle floor of a building such as a high-rise building, the solar system is not limited to being used on the middle floor of a building, It may be used, and it may be used for a low-rise building or a detached house.
- the solar light utilization system 1 includes an outer glass (transparent part) 10, a solar heat collector (energy receiver) 20, an inner glass (indoor transparent member, energy utilization device) 30, 1st and 2nd piping R1, R2 and the pressure absorption part 40 are provided.
- the outer glass 10 is a plate-like glass member installed in a building, and is preferably a transmissive glass having a transmittance for natural light of 80% or more.
- the outer glass 10 is not limited to the transmissive glass, but may be a heat ray absorbing glass or a heat ray reflecting glass installed in an existing high-rise building.
- the outer glass 10 constitutes a part of the building and withstands wind pressure and the like and satisfies the building standards.
- the solar heat collector 20 obtains thermal energy using solar energy supplied to the indoor side through the outer glass 10, and a heat medium is obtained by the thermal energy obtained using the solar energy. (Antifreeze such as ethylene glycol) is heated.
- the solar heat collector 20 has a horizontal blind type structure including a plurality of vacuum tubes 21 extending in the horizontal direction.
- the vacuum tube 21 includes a transparent outer tube and an inner tube that has been subjected to selective absorption of sunlight, and heats the heat medium flowing through a U-shaped heat medium flow path that is inserted into the inner tube, for example. It has become.
- the solar heat collector 20 is not limited to a vacuum tube type having a plurality of vacuum tubes 21, but may be of other types such as one having heat collecting fins.
- the vacuum tube 21 and the heat collecting fins are not limited to being provided in the horizontal blind type, but may be provided in the vertical blind type or a semi-transmissive type.
- the horizontal blind type has better thermal efficiency than the vertical blind type in windows that are not optimized with respect to the solar altitude, such as elevation and horizontal planes, and the number of vacuum tubes 21 and the like can be reduced. And also from the aspect of taking sunlight into the room.
- a vacuum tube type having a plurality of vacuum tubes 21 is used, a stable heat collecting effect can be obtained by a circular inner tube even if there is a difference in solar altitude between summer and winter.
- the inner glass 30 is a plate-like glass member provided on the indoor side of the building with respect to the solar heat collector 20.
- the inner glass 30 has a two-layer structure in which a heat medium can be introduced into the inside through the first pipe R1, and a radiant heating panel that heats the room using the inner heat medium (energy utilization). Function as a device).
- the first glass (transparent member) 31 on the solar heat collector 20 side of the inner glass 30 having a two-layer structure is coated with a predetermined metal film on the surface not in contact with the heat medium. Then, low radiation processing (far infrared cut processing) is performed. By this treatment, the first glass 31 has at least 20% or less of absorption / emissivity and transmittance of far infrared rays having a wavelength of 9 ⁇ m or more and 10 ⁇ m or less.
- the second glass (transparent member) 32 on the indoor side of the inner glass 30 having the two-layer structure is not subjected to the low radiation treatment.
- the absorption, emissivity, and transmittance of the second glass 32 are at least higher than the absorption, emissivity, and transmittance of the first glass 31, and specifically, the absorption, emissivity, and transmittance of far infrared rays.
- the total is 80% or more. Therefore, the far infrared rays from the heat medium are cut by the first glass 31 and are not easily radiated to the outdoor side, but are easily radiated to the indoor side through the second glass 32.
- the inner glass 30 functions as a radiant heating panel with less wasted radiation.
- the 1st glass 31 plays the role which suppresses not only the far infrared rays from a heat medium but the far infrared rays from a room
- the inner glass 30 is provided at the same height as the solar heat collector 20. Furthermore, the first pipe R1 connects the upper part of the solar heat collector 20 and the upper part of the inner glass 30, and the second pipe R2 connects the lower part of the solar heat collector 20 and the lower part of the inner glass 30. For this reason, the heat medium cooled by the inner glass 30 reaches the solar heat collector 20 through the second pipe R2, is heated by the solar heat collector 20, and is returned to the inner glass 30 through the first pipe R1. That is, natural circulation is possible.
- the inner glass 30 may be at least partially included in the height range from the upper end to the lower end of the solar heat collector 20. .
- the inner glass 30 may be at least partially included in the height range from the upper end to the lower end of the solar heat collector 20.
- the pressure absorbing portion 40 is a so-called expansion vessel, and prevents a situation in which the internal pressure of the inner glass 30 increases and breaks due to heat expansion of the heat medium.
- This pressure absorption part 40 is provided, for example, on the first pipe R1.
- FIG. 2 is a detailed configuration diagram of the pressure absorbing unit 40 shown in FIG.
- the pressure absorbing unit 40 includes an inlet 41 connected to the solar heat collector 20, an outlet 42 connected to the inner glass 30, and a heat medium reservoir 43 disposed therebetween.
- the heat medium reservoir 43 is a container-like part whose inner volume is larger than that of the inlet 41 and the outlet 42, and the lower part is filled with the heat medium, but the upper part is in a state where the gas 43a exists. . For this reason, when the heat medium is thermally expanded, the gas 43a in the heat medium reservoir 43 is compressed, and an increase in the internal pressure of the inner glass 30 is suppressed.
- the pressure absorbing unit 40 may be an open-type cistern, in which the gas 43a is opened to atmospheric pressure.
- the solar light utilization system 1 can perform heating by using the inner glass 30 as a radiant heating panel. Further, the solar light utilization system 1 includes a valve V, third and fourth pipes R3 and R4, and an absorption chiller (energy utilization apparatus) 50 for cooling.
- the valve V is a three-way valve provided on the downstream side of the pressure absorption unit 40 in the first pipe R1, and includes a route for supplying the heat medium from the solar heat collector 20 to the inner glass 30 side, and a third pipe.
- the route supplied to the R3 side can be switched.
- the route of the valve V may be switched by a controller based on a signal from a temperature sensor that detects a room temperature or a heat medium temperature, or the route may be switched manually.
- the valve V may be a valve that automatically switches the flow path of the heat medium according to room temperature by a technique such as bimetal, volume change of liquid in the capillary tube, solid-liquid phase change, and shape memory alloy.
- the absorption refrigerator 50 includes a heat exchanger 51 that functions as a regenerator.
- the third pipe R3 is a pipe connecting the valve V and the upper part of the heat exchanger 51
- the fourth pipe R4 is a lower part of the heat exchanger 51 and the second pipe R2 (location A in FIG. 1). It is the piping which connects and.
- the heat exchanger 51 is provided at the same height as the solar heat collector 20, as with the inner glass 30.
- the absorption chiller 50 includes a condenser function unit 52 that functions as a condenser and an evaporation absorber function unit 53 that functions as an evaporator and an absorber.
- the heat exchanger 51 is provided with a flow pipe 51a through which the absorbing liquid and the refrigerant flow.
- a dilute solution is introduced into the heat exchanger 51 serving as a regenerator and is heated by the heat medium from the solar heat collector 20. Thereby, the temperature of the heat medium from the solar heat collector 20 is lowered and returned to the solar heat collector 20 again.
- the dilute solution is separated into a concentrated solution and a vapor refrigerant by heating, and the vapor refrigerant is introduced into the condenser function unit 52.
- the condenser functional unit 52 has a two-layer glass structure, for example, like the inner glass 30. Furthermore, the condenser function part 52 is installed, for example so that it may face the outdoors. For this reason, the vapor refrigerant introduced into the condenser function unit 52 is cooled by the outside air and condensed to become a liquid refrigerant. The liquid refrigerant is introduced into the evaporation absorber function unit 53.
- the concentrated solution obtained by heating in the heat exchanger 51 is introduced into the evaporation absorber function unit 53.
- the evaporation absorber function unit 53 also has a double glass structure, and one glass 53a side functions as an evaporator, and the other glass 53b side functions as an absorber.
- the liquid refrigerant is dropped along one glass 53a on the evaporator side, and the concentrated solution is dropped along the other glass 53b on the absorber side.
- the evaporative absorber function unit 53 includes a plurality of U-shaped members 53c that are U-shaped in cross-sectional view.
- the plurality of U-shaped members 53c are disposed between the two glasses 53a and 53b so as to have a substantially reverse U-shape, and prevent the evaporation absorber function unit 53 in a reduced pressure state from being damaged.
- the U-shaped member 53c is disposed in the opposite direction, the liquid refrigerant or the concentrated solution dripped along the both glasses 53a and 53b is temporarily between the U-shaped member 53c and the glass surface. It is designed to be stored and plays the role of improving the wettability with respect to the glass surface.
- the liquid refrigerant evaporates to become refrigerant vapor and is absorbed by the concentrated solution.
- the dilute solution is discharged from the evaporation absorber function unit 53, and the dilute solution is supplied to the heat exchanger 51 that is a regenerator.
- One glass 53a faces the room, and the room air is cooled by evaporation of the liquid refrigerant.
- the other glass 53b faces the outside, and the absorption heat of the refrigerant vapor is removed by the outside air.
- such an absorption refrigerator 50 is configured to be able to circulate naturally by adjusting the respective positions, but is not limited thereto, and may be provided with a pump, other members not illustrated, and the like May be additionally provided.
- the heat exchanger 51 has a connecting pipe 51b that connects, for example, the rooftop of the building and the basement. For this reason, the heat medium in the heat exchanger 51 can exchange heat with cold water or hot water flowing in the connection pipe 51b.
- a solar heat collector is installed on the roof of a building, and an absorption chiller / heater is installed in the basement. It has come to be.
- the connection pipe 51b connects the rooftop solar heat collector and the underground absorption chiller / heater.
- the connecting pipe 51b penetrates the heat exchanger 51 on each floor. For this reason, the heat medium which flows through the connection pipe 51b rises by the heating of the heat exchanger 51, and can be transferred to the solar heat collector on the roof. Therefore, the heat exchanger 51 also functions as a pump that transfers the heat medium from the underground absorption chiller / heater to the rooftop solar heat collector while raising the temperature of the heat medium.
- the solar energy utilization system 1 which concerns on this embodiment may be provided with the floor heating apparatus (energy utilization apparatus).
- a floor heating apparatus is provided in a floor surface, it is located below the solar-heat collector 20. FIG. For this reason, the floor heating apparatus cannot often be provided at the same height as the solar heat collector 20. Therefore, when natural circulation of the heat medium is performed, the inner glass 30 having a two-layer structure is further provided, and the heat medium discharged from the inner glass 30 having the two-layer structure is supplied to the floor heating device and discharged from the floor heating device. The returned heat medium may be returned to the lower end of the solar heat collector 20. This is because the floor heating device is added to the natural circulation process using the inner glass 30 having the two-layer structure, and the natural circulation can be used as it is.
- the route in which the valve V transfers the heat medium to the inner glass 30 during heating is selected.
- the solar heat collector 20 heats the heat medium using solar energy.
- the heating medium rises by this heating and reaches the inner glass 30 through the first pipe R.
- the heat medium radiates far infrared rays through the second glass 32 on the indoor side to heat the room.
- the first glass 31 on the outdoor side is subjected to low radiation processing, the amount of far infrared radiation to the outdoor side is suppressed.
- the heat medium cooled by the radiation of far infrared rays moves downward in the inner glass 30, is discharged through the second pipe R ⁇ b> 2, and returns to the solar heat collector 20.
- the internal pressure of the inner glass 30 is increased by the heat medium expanded by the heating in the solar heat collector 20, and this increase in the internal pressure is largely absorbed by the compression of the gas 43a of the pressure absorbing portion 40. Become.
- the solar light utilization system 1 which concerns on 1st Embodiment, since the inner glass 30 by which the low radiation process was performed is provided, arrival of solar energy with respect to the solar-heat collector 20 is not inhibited. It is possible to make it difficult to radiate far infrared rays from the indoor side to the outdoors. Therefore, it is possible to improve indoor heat insulation while securing the utility of solar energy, and to improve energy saving performance.
- the existing single window glass generally has a heat transmissivity of about 6 W / (m 2 ⁇ K) and a wall portion of about 0.5 W / (m 2 ⁇ K) or less. Insulation performance is poor. For this reason, when the outer glass 10 is an existing single window glass, the window portion is far from 0.8 W / (m 2 ⁇ K), which is the world standard for passive houses, but this embodiment By adopting the configuration according to the above, it is possible to approach the heat transmissibility required for the passive house.
- the inner glass 30 has a two-layer structure in which a heat medium can be introduced inside, and the far-infrared cut processing is performed on one glass 31 on the solar heat collector 20 side of the two layers of glass 31 and 32. Since the heat from the heat medium is radiated through the other glass 32, the inner glass 30 can be used as a radiant heating panel.
- the inner glass 30 having a two-layer structure is installed so that at least part of the height is from the upper end to the lower end of the solar heat collector 20, the inner glass 30 and the solar heat collector 20 are combined. It will be the same height. As a result, it is possible to perform natural circulation using heat collection by the solar heat collector 20 and heat radiation by the inner glass 30, and even if a heat medium circulation pump is installed, a large output pump Is not necessary.
- the installation work can be simplified by attaching the unit to the outer glass 10, for example.
- the solar light utilization system according to the second embodiment is the same as that of the first embodiment, but a part of the configuration is different from that of the first embodiment.
- differences from the first embodiment will be described.
- FIG. 3 is a configuration diagram showing the solar light utilization system 2 according to the second embodiment.
- the absorption refrigerator 50, the flow pipe 51a, and the connection pipe 51b are the same as those in the first embodiment, and thus the illustration thereof is omitted.
- the solar light utilization system 2 according to the second embodiment includes the second valve V2, the fifth and sixth pipes R5 and R6, and the second pressure in addition to the first embodiment.
- the absorption part 60 is provided.
- the solar light utilization system 2 according to the second embodiment includes a hybrid solar panel PVT instead of the solar heat collector 20, and the configuration of the outer glass (outdoor transparent member) 10 is that of the first embodiment. Is different.
- the hybrid solar panel PVT includes a solar power generation panel 22 that takes in solar energy and generates electric energy in addition to the solar heat collector 20 (a plurality of vacuum tubes 21) shown in the first embodiment.
- the electrical energy generated by the solar power generation panel 22 is used for devices (energy utilization devices) such as home appliances (not shown).
- the photovoltaic power generation panel 22 may be installed inside the vacuum tube 21.
- the outer glass 10 has a two-layer structure in which a heat medium can be introduced into the inner side, like the inner glass 30.
- the low radiation process is not given to both the 1st glass 11 of the outdoor side, and the 2nd glass 12 of the indoor side so that arrival of sunlight to the hybrid solar panel PVT may not be inhibited.
- the second valve V2 is a three-way valve provided on the hybrid solar panel PVT side of the first pipe R1 relative to the pressure absorber 40, and supplies the heat medium from the hybrid solar panel PVT to the inner glass 30 side.
- the route and the route supplied to the outer glass 10 side can be switched.
- the route of the second valve V2 may be switched by a controller, or the route may be manually switched.
- the second valve V2 may be automatically switched using bimetal or the like.
- a hot water storage tank is provided in the second embodiment, it may be switched according to the temperature of the hot water in the hot water storage tank.
- 5th piping R5 is piping which connects the 2nd valve
- the second pressure absorption unit 60 is the same as the pressure absorption unit 40 and has a function of suppressing an increase in internal pressure.
- the second valve V2 switches to a route for supplying the heat medium to the outer glass 10 side, for example, when the heat medium temperature becomes a predetermined temperature or higher (for example, 60 ° C. or higher).
- a predetermined temperature or higher for example, 60 ° C. or higher.
- the heat medium temperature can be lowered.
- the heat medium in the outer glass 10 continues to be cooled by the outside air until the heat medium temperature reaches 60 ° C., and has a low temperature.
- the heat medium temperature can be lowered to less than 60 ° C. relatively early.
- failure of the photovoltaic power generation panel 22 having a heat-resistant temperature of about 70 ° C. and breakage of the vacuum tube 21 (heat collecting part) constituting the solar heat collector 20 can be prevented, and power generation by the photovoltaic power generation panel 22 is possible. This is because a decrease in efficiency can be suppressed.
- the improvement of an energy-saving performance can be aimed at similarly to 1st Embodiment, and it can approximate to the heat transmissivity calculated
- the inner glass 30 can be utilized as a radiation heating panel. Furthermore, natural circulation can be performed, and even if a heat medium circulation pump is installed, a high output pump is not necessary.
- the heat medium becomes too hot.
- the present invention has been described based on the embodiments, but the present invention is not limited to the above-described embodiments, and may be modified without departing from the spirit of the present invention, and may be appropriately changed within a possible range. These techniques may be combined. Furthermore, known or well-known techniques may be combined within a possible range.
- the inner glass 30 has a two-layer structure and functions as a radiant heating panel that heats the room.
- the heat medium from the heater 20 may be configured to be used in energy-using equipment such as the absorption chiller 50 and floor heating.
- a heat medium is supplied to the inner glass 30 which functions as a radiation heating panel, or it supplies to the regenerator (heat exchanger 51) of the absorption refrigeration machine 50, it is not restricted to this.
- the temperature of the hot water storage tank may be raised by supplying a heat medium to the hot water tank, or the water from the water pipe may be heated by the solar heat collector 20 and supplied to the hot water heater.
- the amount of acquired heat exceeding the heating demand or the cooling demand may be supplied to a hot water storage tank, or may be heat exchanged with a building frame (the frame is a heat storage layer).
- the inner glass 30 and the outer glass 10 of the second embodiment may be reinforced by ribs or partition walls as necessary to prevent water pressure.
- it is not preferable to configure one inner glass 30 or the outer glass 10 according to the second embodiment in a plurality of levels in terms of water pressure it is preferable to form each level.
- the rooftop solar heat collector and the underground absorption chiller / heater are related to the entire building, and the solar light utilization systems 1 and 2 according to the present embodiment are for each level. Therefore, the case where the solar light utilization systems 1 and 2 are the property of the tenant for every hierarchy is also considered, for example.
- the amount of heat obtained by the solar heat collector 20 is given to cold water or hot water flowing through the connection pipe 51b via the heat exchanger 51. It is preferable to measure whether it has been supplied to cold water or hot water flowing in the connection pipe 51b. This is because it can be used for, for example, buying and selling heat.
- the amount of heat is acquired from the connection pipe 51b to heat the heat medium, and the heated heat medium is supplied to the inner glass 30 for heating. Good. Further, the amount of heat may be acquired from the connection pipe 51b and used for the regeneration of the absorption refrigerator 50.
- the inner glass 30 may be configured in a sliding window type (two sliding windows). As a result, the inner glass 30 can be moved in the horizontal direction in the same manner as the sliding window. By moving the two sliding windows so as to overlap each other, the surface subjected to the low radiation treatment is halved and the indoor heat is moved to the outside. This is because it can be released.
- the solar energy utilization system 1 which concerns on 1st Embodiment is provided only with the solar-heat collector 20, it is not restricted to this, You may be comprised with the photovoltaic power generation panel 22, and the hybrid solar panel PVT It may be comprised. Furthermore, in 2nd Embodiment, although the hybrid solar panel PVT is provided, if it is the structure containing the solar-heat collector 20, it may not be a hybrid solar panel PVT.
- a part of the inner tube of the vacuum tube 21 is constituted by a white high reflection plate, and when the temperature of the heat medium reaches 60 ° C. or more, the entire inner tube or the vacuum tube 21 rotates and the white high reflection plate. May be exposed to sunlight. This is because sunlight is reflected, and the rise of the heat medium temperature can be suppressed to prevent the solar power generation panel 22 from being broken, and the decrease in power generation efficiency can be suppressed.
- the outer glass 10 is a part of the building.
- the outer glass 10 is not limited to this, and the outer glass 10 is an existing single-layer glass in a high-rise building or the like.
- the outer glass 10, the hybrid solar panel PVT and the inner glass 30 may be provided in this order from the inside with respect to the single-layer glass.
- the inner glass 30 and the outer glass 10 are not restricted to the case where it is comprised by what is called a glass material, You may be comprised by the transparent member containing transparent resin like a polycarbonate.
- An energy receiver solar heat collector 20 that is provided on the inner side with respect to the transparent part (outer glass 10) of the building and receives solar energy to obtain at least one of electric energy and thermal energy;
- An indoor transparent member inner glass 30 provided on the indoor side of the building with respect to the energy receiver;
- An energy utilization device absorption refrigeration machine 50 that uses energy from the energy receiver on the indoor side,
- the indoor-side transparent member is subjected to a treatment in which at least the far-infrared absorption / emissivity and transmittance of wavelengths of 9 ⁇ m to 10 ⁇ m are both 20% or less.
- the energy receiver is a solar heat collector (20) that obtains thermal energy by taking solar energy and heating the heat medium
- the indoor side transparent member is a transparent member having a two-layer structure capable of introducing a heat medium from the solar heat collector into the inside, and the transparent member on the solar heat collector side of the two layers of the transparent member is
- the solar light utilization system according to [1] wherein the solar light utilization system functions as the energy utilization device that radiates far infrared rays from the heat medium through the indoor transparent member of the two layers of the transparent member while being processed.
- the indoor transparent member having the two-layer structure is installed so that at least a part thereof is included in the height from the upper end to the lower end of the solar heat collector. system.
- the solar light utilization system according to [2] or [3], further including an outdoor transparent member (outer glass 10) having a structure.
- the present invention there is an effect that it is possible to provide a solar light utilization system capable of improving indoor heat insulation while ensuring the utilization of solar energy.
- the present invention that exhibits this effect is useful for a solar light utilization system capable of improving energy saving performance.
Abstract
Description
前記エネルギー受領器に対して建物の室内側に設けられた室内側透明部材(内ガラス30)と、
前記エネルギー受領器からのエネルギーを前記室内側にて利用するエネルギー利用機器(吸収式冷凍機50)と、を備え、
前記室内側透明部材は、少なくとも波長9μm以上10μm以下の遠赤外線の吸収・放射率及び透過率が共に20%以下となる処理が施されている
太陽光利用システム。
前記室内側透明部材は、前記太陽熱集熱器からの熱媒を内側に導入可能な2層構造の透明部材であり、2層の前記透明部材のうち前記太陽熱集熱器側の透明部材に前記処理が施されると共に、2層の前記透明部材のうち前記室内側の透明部材を通じて熱媒からの遠赤外線を放射する前記エネルギー利用機器として機能する
上記[1]に記載の太陽光利用システム。
上記[2]に記載の太陽光利用システム。
上記[2]又は[3]に記載の太陽光利用システム。
10 外ガラス(透明部位、屋外側透明部材)
11 第1ガラス
12 第2ガラス
20 太陽熱集熱器(エネルギー受領器)
21 真空管
22 太陽光発電パネル
30 内ガラス(エネルギー利用機器、室内側透明部材)
31 第1ガラス(透明部材)
32 第2ガラス(透明部材)
40 圧力吸収部
41 入口部
42 出口部
43 熱媒溜め部
43a 気体
50 吸収式冷凍機(エネルギー利用機器)
51 熱交換器
51a 流通管
51b 接続管
52 凝縮器機能部
53 蒸発吸収器機能部
60 第2圧力吸収部
PVT ハイブリッドソーラーパネル
R1~R6 配管
V バルブ
V2 第2バルブ
Claims (4)
- 建物の透明部位に対して内側に設けられ、太陽光エネルギーを取り込んで電気エネルギー及び熱エネルギーの少なくとも一方を得るエネルギー受領器と、
前記エネルギー受領器に対して建物の室内側に設けられた室内側透明部材と、
前記エネルギー受領器からのエネルギーを前記室内側にて利用するエネルギー利用機器と、を備え、
前記室内側透明部材は、少なくとも波長9μm以上10μm以下の遠赤外線の吸収・放射率及び透過率が共に20%以下となる処理が施されている
太陽光利用システム。 - 前記エネルギー受領器は、太陽光エネルギーを取り込んで熱媒を加熱することにより熱エネルギーを得る太陽熱集熱器であって、
前記室内側透明部材は、前記太陽熱集熱器からの熱媒を内側に導入可能な2層構造の透明部材であり、2層の前記透明部材のうち前記太陽熱集熱器側の透明部材に前記処理が施されると共に、2層の前記透明部材のうち前記室内側の透明部材を通じて熱媒からの遠赤外線を放射する前記エネルギー利用機器として機能する
請求項1に記載の太陽光利用システム。 - 前記2層構造の室内側透明部材は、前記太陽熱集熱器の上端から下端までの高さに少なくとも一部が含まれるように設置されている
請求項2に記載の太陽光利用システム。 - 前記太陽熱集熱器よりも外側に設けられ、前記太陽熱集熱器からの熱媒の温度が所定温度以上となる場合に前記太陽熱集熱器からの熱媒を内側に導入する2層構造となった屋外側透明部材をさらに備える
請求項2又は請求項3のいずれかに記載の太陽光利用システム。
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CN201780081233.0A CN110121623B (zh) | 2016-12-27 | 2017-11-20 | 太阳能利用系统 |
BR112019013254A BR112019013254A2 (pt) | 2016-12-27 | 2017-11-20 | sistema de utilização de energia solar |
RU2019119843A RU2720126C1 (ru) | 2016-12-27 | 2017-11-20 | Система утилизации солнечной энергии |
US16/453,219 US11085668B2 (en) | 2016-12-27 | 2019-06-26 | Solar energy utilization system |
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JP2020173057A (ja) * | 2019-04-10 | 2020-10-22 | 矢崎エナジーシステム株式会社 | 熱交換器 |
JP6932740B2 (ja) * | 2019-05-28 | 2021-09-08 | 矢崎エナジーシステム株式会社 | 液体供給装置および熱交換器ユニット |
JP7433717B2 (ja) * | 2020-03-27 | 2024-02-20 | 矢崎エナジーシステム株式会社 | コージェネレーションシステムの設備決定方法、設備決定装置、設備決定プログラム、及び、コンピュータ読取可能な記録媒体 |
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CN110121623A (zh) | 2019-08-13 |
US20190316811A1 (en) | 2019-10-17 |
JP2018105551A (ja) | 2018-07-05 |
RU2720126C1 (ru) | 2020-04-24 |
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