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Title:
AIR PURIFICATION PANEL, SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2020/030236
Kind Code:
A1
Abstract:
A panel and system for a building exterior facade that naturally aspirates polluted ambient air and improves the air quality around the building for indoor and outdoor purposes. The panel provided with a nonplanar surface that is configured for removing pollution from the air. The panel uses the free space between building facade and walls to force the polluted ambient air to pass through the filters by natural ventilation i.e. wind, air density and height of the building. In order to absorb the pollution from the air, the panel uses a photocatalytic based chemical reaction. The panel interacts with the passing air with little resistance and absorbs a high level of pollution. The panel is mounted on the façade of the building behind a transparent outer layer form a channel trading chimney effect for generating natural ventilation for enhancing flow of the air over the surface of the panel.

Inventors:
EFTEKHAR MORTEZA GHORBANI (DK)
Application Number:
PCT/DK2019/050238
Publication Date:
February 13, 2020
Filing Date:
August 06, 2019
Export Citation:
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Assignee:
EFTEKHAR MORTEZA GHORBANI (DK)
International Classes:
E04B2/90; B01D53/86; B01J21/06; E04B1/74; E04C2/30
Domestic Patent References:
WO1998007931A11998-02-26
Foreign References:
JP2002061314A2002-02-28
JPH10151323A1998-06-09
US5595813A1997-01-21
JP2007019792A2007-01-25
JPH06278241A1994-10-04
JP2007051505A2007-03-01
Other References:
FUJISHIMA, A. ET AL.: "Ti02 photocatalysis and related surface phenomena", SURFACE SCIENCE REPORTS, vol. 63, no. 12, 2008, pages 515 - 582, XP025680380, DOI: 10.1016/j.surfrep.2008.10.001
DATABASE WPI Week 004305, Derwent World Patents Index; AN 2006-004305
See also references of EP 3833827A4
Attorney, Agent or Firm:
NORDIC PATENT SERVICE A/S (DK)
Download PDF:
Claims:
CLAIMS:

1. A panel for installation on a fagade of a building for removing pollution from ambient air around said building, said panel having a surface configured for removing pollution from the air, and said surface being non-planar thereby increasing the available surface area for removing pollution form the air.

2. A panel according to claim 1 , wherein said surface comprises a plurality of protrusions that extend substantially perpendicularly to a main extend of said panel, and wherein said protrusions are preferably substantially equidistantly spaced from one another,

3. A panel according to claim 2, wherein said protrusions are arranged in a pattern, preferably a regular pattern that provides relatively low resistance to air flowing over said protrusions in a general direction parallel with said main extent.

4. A panel according to any one of claims 1 to 3, wherein said panel comprises a substrate and a coating, said substrate preferably being made from a polymer material and said coating preferably being a photocatalytic coating, even more preferably a nonstick photocatalytic coating.

5. A panel according to claim 4, wherein said coating comprises Ti02.

6. A panel according to claim 4 or 5, wherein said substrate and said coating are at least partially transparent to sunlight or daylight.

7. A panel according to any one of claim 4 to 6, wherein said substrate is produced by a vacuum molding process, preferably a thermo vacuum molding process.

8. A panel according to any one of claims 4 to 7, wherein said polymer material is ETFE, Polycarbonate or a mixture thereof.

9. A building with a fagade comprising a plurality of panels according to any one of claims 1 to 8, said panels being installed behind a transparent outer layer to create a channel between said panels and said outer layer, said channel being open to a lower end of the channel and to an upper end of the channel to create a chimney effect for generating natural ventilation to enhance flow of air over said surface.

10. A building according to claim 9, wherein said panels are connected to a neighboring panel by an interference fit.

1 1. A building according to claim 8 or 9, comprising an HVAC system, with an intake of the HVAC system connected to said channel.

12. A building according to any one of claims 9 to 1 1 , comprising a closable opening connecting said channel to the interior of said building

13. A building according to any one of claims 9 to 12, comprising a water reservoir, preferably a rainwater reservoir, said water reservoir being connected to a system for admitting water from said water storage to said channel for flowing said water over said surface for cleaning said surface and/or for firefighting.

14. A method for purifying ambient air around a building, by providing the outer walls of said building with panels according to any one of claims 1 to 8 and allowing ambient air to flow over said surface.

15. A method according to claim 14, comprising using sunlight or daylight for activating a photocatalytic substance in said surface.

16. A method according to claim 14 or 15, comprising using rainwater to cleanse said surface and thereby remove pollution from said panels.

17. Use of the panel according to any one of claims 1 to 8, to remove pollution from ambient air by installing said panel exposed to ambient air on an outer wall of a building, a sound barrier or any flat surfaces that fit its specifications.

18. A sound barrier comprising a panel according to any one of claims 1 to 8.

Description:
AIR PURIFICATION PANEL. SYSTEM AND METHOD

The present disclosure relates to a new multifunctional type of building exterior panel for a building exterior facade that assists in naturally aspirating polluted ambient air and improves the air quality around the building for indoor and outdoor purposes, relates to a building with such fagade and a method for cleaning air around such building.

BACKGROUND

US301 1602 discloses Panel Construction wherein Panels have been proposed and introduced having two-spaced external sheets or skins of metal, or the like, and an embossed or formed sheet there between having special waffle patterns intended to lend rigidity and strength to the assembly and yet permit the assembly to remain relatively light in weight.

The present product differs from the above quoted prior art as the object of the quoted prior art is to provide a panel construction of glass referred to wherein the angular portion or bridges join the elevated areas or projections at or occupy the plane most remote from the plane occupied by the lands to which the skin sheet is attached whereas the object of the present disclosure is to provide a building exterior fagade that has been smartly designed to benefit from the free spaces between building facade and walls to force the air pollution around the building to pass through by natural ventilation i.e. wind, air density and height of the building and in order to absorb pollution, the panel makes use of Photocatalytic chemical reactions. US14622526 disclose a System and method for a vented and water control siding, vented and water control sheathing and vented and water control trim-board wherein a vented and water control paneling has improved drainage and integrated ventilation air space. The water control paneling may be fabricated with an omni-directional relief pattern formed on its back surface. The relief pattern spaces the vented and water control paneling away from a structure to which it is secured, thereby providing an omni-directional drainage plane between the back surface of the paneling and the structure. The omni-directional drainage plane provides an unimpeded ventilation and drainage path of water and/or water vapor.

The object of the quoted prior art is to reduce the potential for damage due to moisture and to create an omni-directional ventilation space behind the siding, trim, or cladding, one embodiment of the present disclosure introduces raised patterns or bumps to the manufactured back side of siding, trim, or cladding. These raised bumps or patterns create a permanent, omni-directional, air space and are integral to the manufactured siding, trim or cladding product whereas the object of the permanent system according to the present disclosure is to provide a building exterior fagade that has been smartly designed to benefit from the free spaces between building facade and walls to force the air pollution around the building to pass through by natural ventilation i.e. wind, air density and height of the building and in order to absorb pollution, the panel makes use of Photocatalytic based chemical reactions.

US 11579714, discloses a system and method for extraction of carbon dioxide from Air, wherein the C02 extraction methods and systems involve the use of chemical processes. Methods are also described for extracting and/or capturing C02 via exposing air containing carbon dioxide to a solution comprising a base— resulting in a basic solution which absorbs carbon dioxide and produces a carbonate solution. The solution is causticized, and the temperature is increased to release carbon dioxide, followed by hydration of solid components to regenerate the base.

The quoted prior art related to the field of extractors, including those that work to extract carbon dioxide from air and it relates to methods and devices for extracting carbon using wet scrubbing technique whereas the product and system according to the present di is a smartly designed exterior building fagade that makes use of Photocatalytic based chemical reactions for the extraction or absorption of polluted air which have been specifically designed to produce a significant interaction with the passing air with the least resistance to absorb a high level of pollutions such as NOx, SOx, VOC, PM etc.

US10510714 discloses a Substrate with a Self-Cleaning coating wherein transparent substrate based on glass or one or more polymers, or a ceramic or glass substrate, or a substrate made of architectural material of the type comprising a wall render, a concrete slab or block, architectural concrete, roof tile, material of cementitious composition, terracotta, slate, stone, metal surface or a fibrous substrate, based on glass of the mineral insulation wool type, or glass reinforcement yams. This substrate is distinguished in that it is provided, on at least part of its surface, with some coating whose meso-porous structure exhibits photo catalytic properties and comprises at least partially crystallized titanium oxide. Process for manufacturing this substrate, its application in glazing, as architectural material or as mineral insulation wool is also described.

The object of the quoted prior art is more particularly to obtain coatings that can, even under mediocre irradiation conditions, and even at night, or indoors, in particular under the action of residual ultraviolet radiation from conventional light fittings or of ultraviolet radiation passing through glazing, exhibit a certain anti-soiling activity. Products associated with a UV lamp are also the subject of the present disclosure, in particular self-cleaning filters whereas the object of the present disclosure is to provide a building exterior fagade that has been smartly designed to benefit from the free spaces between building facade and walls to force the air pollution around the building to pass through by natural ventilation i.e. wind, air density and height of the building and in order to absorb pollution, the panel makes use of Photocatalytic based chemical reactions.

EP19820302055 discloses a structural panel wherein a structural panel comprises truncated polyhedral elements projecting from a base sheet with the base sheet and truncation surfaces providing increased bonding areas for external face sheets. Mass produced, identical panels which are nestable for shipping and storage may be combined in an interlocking arrangement to form a combined panel which is nearly isotropic in its reaction to external loads.

The quoted prior art provides a structural panel having truncated-apex elements of various geometries protruding in one direction from a base sheet, such that the base sheet and the truncation planes of the elements provide excellent bonding areas for the addition of external face sheets by adhesives, welding, and the like. Alternatively, according to the material used in the fabrication of the panel, face sheets or the like may be attached by nails, rivets, screws, or other conventional attachment means. Two of the panels may be combined so that the elements of one panel are caused to interlock with those of the other panel in order to provide added internal load bearing or reacting capabilities, or, the two panels could be arranged, base sheet-to-base sheet, to present only the truncation plane surfaces for face sheet bonding. Another embodiment includes elements projecting in opposite directions from one base sheet whereas the present disclosure is a new type of building exterior facade that naturally sucks the polluted air and improves the air quality around the building for indoor and outdoor purposes and it has been smartly designed to benefit from the free spaces between building facade and walls to force the air pollution around the building to pass through by natural ventilation i.e. wind, air density and height of the building and in order to absorb the pollution, the panel uses the Photocatalytic based chemical reaction which has been specifically designed to produce a significant interaction with the passing air with the least resistance to absorb a high level of pollutions.

CN201220435318 discloses a novel energy saving environment friendly wall body for building wherein the novel energy-saving environment-friendly wall body comprises first composite heat preservation building blocks (1), second composite heat preservation building blocks (2), a modified polyurethane rigid foam fireproof heat preservation plate (3), a fireproof composite external wall panel (4) and a thin film layer of titanium dioxide (5), wherein the modified polyurethane rigid foam fireproof heat preservation plate (3) is arranged between the first composite heat preservation building blocks (1) and the second composite heat preservation building blocks (2), the fireproof composite external wall panel (4) is arranged on the outer side of the second composite heat preservation building blocks (2), and the nano-titanium dioxide thin film layer (5) is coated on the outer side of the fireproof composite external wall panel (4). The novel energy-saving environment-friendly wall body can effectively perform self-cleaning, ensure the aesthetics in appearance of the building, simultaneously greatly save manpower, physical resources and financial resources and protect the environment from being polluted; simultaneously, fireproof and heat preservation materials are added so as to bring a certain guarantee to the safety of property and lives of people; and furthermore, the novel energy-saving environment-friendly wall body is easy to prepare, low in cost and suitable for large-scale popularization.

The quoted prior arts provides for heat preservation building blocks and provides for a novel energy saving environment friendly wall body which is low in cost and suitable for large scale popularization whereas the present disclosure provides for a new type of building exterior fagade that naturally sucks the polluted air and improves the air quality around the building for indoor and outdoor purposes and it has been smartly designed to benefit from the free spaces between building facade and walls to force the air pollution around the building to pass through by natural ventilation i.e. wind, air density and height of the building and in order to absorb the pollution, the panel uses the Photocatalytic based chemical reaction which has been specifically designed to produce a significant interaction with the passing air with the least resistance to absorb high level of pollutions.

Whereas the prior-art has covered various aspects of building fagade but the present product and system will prove to be advantageous as it has smart maintenance, which leads to higher performance and it shall prove to be eco-friendly as it shall improve the quality of air in and outside the building and will also make use of rain water harvesting to clean the various parts of the product as disclosed in the present disclosure.

Thus, the present product is an improvement in many senses over the prior art and the limitations and non-effectiveness of the prior art has been reduced or overcome by the present disclosure as described below.

SUMMARY The object above is achieved according to a first aspect by providing a panel for installation on a fagade of a building for removing pollution from ambient air around said building, said panel having a surface configured for removing pollution from the air, and said surface being non-planar thereby increasing the available surface area for removing pollution form the air. The panels have been designed in such a manner that they benefit from the free space between building fagade and walls and thus forces the air pollution around the building to pass through by natural ventilation i.e. , temperature differences, air density and height of the building thereby making it a suitable product for both construction of new buildings or renovation of pre-existing ones. The nonplanar (onion) surface provides a large surface area for contact with the air for removing pollution.

According to a first possible implementation of the first aspect the surface comprises a plurality of protrusions that extend substantially perpendicularly to a main extend of said panel, and wherein said protrusions are preferably substantially equidistantly spaced from one another,

According to a second possible implementation of the first aspect the protrusions are arranged in a pattern, preferably a pattern that provides relatively low resistance to air flowing over said protrusions in a general direction parallel with said main extent.

According to a third possible implementation of the first aspect the panel comprises a substrate and a coating, said substrate preferably being made from a polymer material and said coating preferably being a photocatalytic coating, even more preferably a nonstick photocatalytic coating.

According to a fourth possible implementation of the first aspect the coating comprises Ti02. According to a fifth possible implementation of the first aspect the substrate and said coating are at least partially translucent transparent to sunlight or daylight, the coating and/or the substrate can have any selected color, e.g. for supporting the design of a building.

According to a sixth possible implementation of the first aspect the substrate is produced by a vacuum molding process, preferably a thermo vacuum process.

According to a seventh aspect the polymer material is ETFE, Polycarbonate or a mixture thereof.

According to a second aspect there is provided building with a fagade comprising a plurality of panels according to the first aspect and any possible implementations thereof, said panels being installed behind a translucent or transparent outer layer to create a channel between said panels and said outer layer, said channel being open to a lower end of the channel and to an upper end of the channel to create a chimney effect for generating natural ventilation for enhancing flow of the air over said surface.

By providing a building with the panels, it becomes possible to provide the fagade that is capable of purifying ambient air without needing to use any form of power that isn’t provided by the environment.

According to a first possible implementation of the second aspect the panels are connected to a neighboring panel by an interference fit.

According to a second possible implementation of the second aspect the building comprises an HVAC system, with an intake of the HVAC system connected to said channel.

According to a third possible implementation of the second aspect the building comprises a closable opening connecting said channel to the interior of said building

According to a fourth possible implementation of the second aspect the building comprises a water reservoir, preferably a rainwater reservoir or waste water in the building (Gray water system), said water reservoir being connected to a system for admitting water from said water storage to said channel for flowing said water over said surface for cleaning said surface and/or for firefighting.

According to a third aspect there is provided a method for purifying ambient air around a building, by providing the outer walls of said building with panels according to the first aspect and any possible implementations thereof and allowing ambient air to flow over said surface. According to a first possible implementation of the third aspect the method comprises using sunlight or daylight for activating a photocatalytic substance in or on said surface.

According to a second possible implementation of the third aspect the method comprises using rainwater or wastewater to cleanse said surface and thereby remove pollution from said panels.

According to a fourth aspect there is provided a use of the panel according to the first aspect and any implementations thereof to remove pollution from ambient air by installing said panel exposed to ambient air on an outer wall of a building or a sound barrier.

According to a fifth aspect there is provided a sound barrier comprising a panel according the first aspect and any possible implementations thereof.

According to a sixth aspect there is provided a new type of building exterior multi-functional facade that naturally sucks the polluted air and improves the air quality around the building through the building for indoor and outdoor purposes. Mainly, the majority of pollutions are concentrated in the ground level up to 5 meters or so, which will be forced to pass through the panels (filters) on the building and will be interacted with the panel shapes that is chemically activated with Nano-chemical materials. As more interaction as more absorption of the pollutants. Part of the pollutants will be then reform to different and harmless substances and the rest will be absorbed and ready to be collected (washed). The dirty water will be collected at the entrance of the air and will be delivered to the gray water system storage in the basement to be recycled/filtered and the clean water will be reused again in the system or other purposes.

The system is a green and efficient substitute to normal unrecyclable building facades e.g. aluminum composite panels.

The panels have been designed in such a manner that they claim to benefit from the free spaces between building walls and a glass layer in front of them, which produces enough natural ventilation that forces air pollution around the building to pass through by naturally i.e. , temperature differences, air density and height of the building. Thereby making it a suitable product for both construction of new buildings or renovation of pre-existing ones.

The product disclosed benefits from a Smart monitoring system that monitors the level of air pollution in the input (ground level) and output (Roof) of the air into the panels. In order to keep the performance of the product as high as possible, the input and output air will be automatically monitored and depends on the level of pollution it will release the water to maintain/wash the panels(washed by stored rainwater water or waste water in the building). All the data will be monitored and available through the server, which can be used to detect when the used chemicals in the system lost their effects and require to be added or when the gray water filter needs to be replaced as well as demonstrating some of the statistics such as how much pollution it has been removed from the air etc

The product and system according to the present disclosure has smart maintenance as it makes use of a technology that harvests the rainwater and thus automatically cleans various parts of the product and system when needed.

The product and system of the present disclosure is equipped with a Sustainable and Smart technology to harvest the rain or wastewater in buildings (Gray water system), using loT (Internet of Things) to monitor, control and maintain the product when required.

The prior art defines various type of building facades. However, the present disclosure envisages to provide a type of building exterior facade that naturally sucks the polluted air and improves the air quality around the building for indoor and outdoor purposes.

Some of the features of the panels: High efficiency (3 to 4 times more than competitors), due to the enforcement of pollutant to pass through the filters

Smart Maintenance and monitoring system

Rainwater harvesting technology and Gray water system

Adding extra Acoustic and Thermal Insulation to the building. Based on European Acoustic and Thermal Standards; the panels will add extra acoustic and thermal insulations on the buildings due to the special shape and its thickness.

Simplicity of installation. It has been specially designed to comfort and ease the installation, which will decrease the labor costs and time of the construction that lead to save costs.

Fire retardant. One of the most important considerations in the construction products is safety. Therefore, a study has been conducted to choose a material that in the case of fire, doesn’t spread it to the whole building as well as in the worst case scenario, it wouldn’t make toxic smokes.

To STOP Fire. The system is also equipped with temperature sensors that depends on the general city temperature, if it raise more than a standard level, it will release the stored water on top of the building to cool down the panels, which it will help preventing from fire to spread or turn it down completely, in case if the fire source is on the facades.

100% Recyclable materials. One of the other important considerations in choosing the material was being an environmentally friendly product with recyclability. Very small space to occupy (20 cm to maximum 30 cm). Reasonable price. Very lightweight. Durable. The material and chemical used in the product, have both lifetime durability.

Materials are included but not limited to:

- Polymer material, preferably ETFE, Polycarbonate or a mixture thereof.

- The substrate may be reinforced with fiberglass further fibers.

- A coating of comprising Ti0 2 , these are the nano-chemical materials that absorbs and transforms pollution into harmless substances. The main use of Ti02 will be to make the panels none-stick against the dirt and pollution absorbed in the process and simply being washed.

Ti0 2 or Titanium Dioxide, also known as Titanium (IV) oxide or Titania, is the naturally occurring oxide of titanium, chemical formula Ti0 2 . It is used for the photocatalytic air purification. Oxygen (O) of the Titanium Oxide reacts with water in the air (H20) hydroxyl radicals and super-oxide ions are formed which oxidize volatile organic compounds in the air and eliminate microorganisms adsorbed on the catalyst surface. Organic substances, like germs and volatile organic compounds, are held together by carbon-carbon, carbon-oxygen or carbon-hydrogen bonds. Oxidizers chop these bonds and cut the molecule into smaller compounds which are broken over and over until only carbon dioxide and water are left.

This photocatalytic purifier can eliminate particles up to approximately 0.01 microns from air. CaC0 3 or Calcium carbonate is a chemical compound with the formula CaC0 3 . It is a common substance found in rocks as the minerals caicite and aragonite and is the main component of pearls and the shells of marine organisms, snails, and eggs. This chemical prove to absorb C02 very effectively and will be one of the chemicals mixed in the water storage on top of the building. The water is then used to clean the surface of panels intermittently. The surfaces as well as the water is ionized to remove 802 and the water may include CaCo3, TI02 and/or Perovskites inorganic compounds such as KTaOS and or lecithin as well as active carbon powder. The type of chemicals can be different depends on the type of targeted pollution to remove.

One of the other reasons of mixing these two substances is to prevent Ti0 2 to produce any toxic substances while purifying the air, which CaC0 3 can simply handle as well as CaC0 3 has its own effects on purifying the air.

The panel dimensions are variable, flexible and it can be provided as one square meter panels. Therefore but not limited to, Width: 100cm x Length: 100cm x Height: 8 to 30cm (Due to ease & flexibility of construction and design)

Colors: Variable, preferably translucent or transparent or semi-transparent material.

UV needed: 1 Watt per square meter (provided by sunlight or daylight).

Possible applications:

Building Air Purification. Indoor and outdoor air purification is one of the systems’ main applications.

Construction of new buildings/Renovation. The system is suitable product for both construction of new buildings or renovation of existing buildings.

Highway Noise Barrier. Using the system in highways as a Noise Barrier, will keep the noises away from the residents around as well as collecting the rainwater and purifying the pollution made by vehicles instantly.

Building Insulation. The system can add up to 20% extra insulation on the building thus it can turn a normal building to a class A energy efficiency building. Gray Water System. The system is an active air purification system; thus, it collects rainwater and wastewater in the building and cleans the panels as well as reusing these waters in the building as toilet flash, sink etc.

Smart Air Pollution Control and maintenance System. To keep the performance of the product as high as possible, the system is equipped with a Sustainable and Smart technology to harvest the rain or waste water in buildings (Gray water system), using loT (Internet of Things) to monitor, control and maintain the product when it is required.

Fire proof system. The system is equipped with temperature sensors that detect the level of the heat on the panels and if the temperature increased more than the defined local temperature, it will release the water to cool down the panels and possibility of taking down the fire on the facades.

Bus shelter’s air purification unit This system can be formed into a smaller version to implement on the bus shelters or advertising panels or any flat surfaces.

These features assure that the system performs best, purify air in the highest efficiency and saving water.

BRIEF DESCRIPTION OF DRAWINGS

Figure 1 represents a frontal and elevated views of embodiments of the panel;

Figure 2 represents a sectional and frontal view of an embodiment of the panel with its dimensions;

Figure 3 represents an elevated rendering of an embodiment the panel with additional components;

Figure 4 represents a building provided with panels according to an embodiment;

Figure 5 illustrates maintenance of the building of figure 4;

Figure 6 represents three sectional views embodiments of the panel fitted to buildings; Figure 7 represents wall construction details;

Figure 8 represents a construction detail of a building provided with panels according to an embodiment;

Figure 9 represents a possible application of the panel as a highway noise barrier and air purification unit, the front (highway/road) side.

Figure 10 represents the street side of the application of figure 9.

Figure 1 1 represents the front side of an application of an embodiment of the panel as a noise barrier; Figure 12 represents the one of the applications of an embodiment of the panel as a building air purification system.

Figure 13 represents the sectional view of construction details using ETFE or Polycarbonate, and

Figure 14 illustrates the implementation of the panels on a building.

DETAILED DESCRIPTION

Figure 1 .1 represents the different views of embodiments of the panel wherein 1.101 is the front view in which is showing the interaction of pollutions with the panels and 1.102 is showing the acoustic effects of the panel, when noise heats the panel’s surface the damping effect will absorb the noise.

The rest of images are taken from a product’ sample according to an embodiment, wherein 1.103 is the panel’s 3 dimension view, 1.104 is the side view, which the chemicals are coated in transparent color and 1.105 is the front view;

Figure 1.2 sectional and dimension’s embodiment. The 1.201 is the top view of the panel and the 1.202 is the front side. The panel can come in different shapes as long as follows the main idea of the product, which is to interact with the polluted air as much as possible. This specially designed shape is producing the least resistant against the air flow while is producing a high interaction. The panel comprises substrate with a coating thereon that is suitable for cleaning the polluted air that comes in contact with the coating.

Thus, the active surface of the panel is formed by the coating on the substrate.

The substrate is coated on the embodiment and uses but not limited to thermo vacuum process as a preferred manufacturing method. Suitable polymeric materials for the substrate are e.g. Ethylene tetrafluoroethylene (ETFE), polycarbonate or mixtures thereof. The substrate is in an embodiment fiber reinforced, e.g. with glass fibers or other suitable fibers. The coating is preferably a photocatalytic coating that is activated by sunlight. Suitable components for the photocatalytic coating are Ti02. Preferably, both the subject and the coating are at least partially translucent or transparent for sunlight, in order to allow sunlight into the building through the panel.

The surface of the panel is nonplanar by e.g. comprising a plurality of protrusions in order to create a larger surface according to interact with the polluted air. The protrusions are preferably all of identical shape and have a main extend that is substantially perpendicular to the main extend of the panel. The protrusions are preferably equidistantly arranged in a regular pattern.

Figure 1.3 represent how panel are installed on top of each other. 1.301 demonstrates a click type (interference fit) installation of panels on top of each other. In 1.302 the ability of the panels to be shaped differently is demonstrated that in the height of 3 meter it can reach up to 45 degrees curved angle.

Figure 2 represents the technical specifications of a implementation on a sample wall of the building, in which panels are installed, wherein 201 is the building wall, 202 is a glass or transparent polymer cover in front of the panels to produce a channel for natural ventilation, 203 is the panels installed, 204 is the entrance for polluted air forced by natural ventilation to pass over the surface of the panels, 205 is the exit point that the clean air enters into the HVAC system and spreads into the building, 206 is the back side of the panels, and 207 is the stairs/floors of the building. Sprinklers (not shown) for sprinkling water for rinsing the surface of the panels are arranged in the channel for cleaning the surface of the panels. The water for sprinkling the panels may come from a reservoir at the top of the building that will be described in more detail further below. The water from sprinklers can also be used for firefighting, i.e. to keep the panels cool if there is a fire in the building.

The water is used to clean the surface of panels intermittently. The surfaces as well as the water is ionized to remove S02 and the water may include CaCo3, Ti02 and/or Perovskites inorganic compounds such as KTa03 and or lecithin as well as active carbon powder. The type of chemicals are not limited to the above mentioned and can be different depends on the type of targeted pollution to remove.

Figure 3 represents a 3D cut view of the whole wall with all the components for the cases that do not require light to pass and needs more insulation whereas 301 is the construction detail that holds the construction on the wall, 302 is mineral wool to add extra thermal insulation, which would be valuable depends on the building scenario (note: in embodiment of Figure 2, there would be no glass wool), 303 are the panels, 304 is the component called a spider that holds the covering glass in front of the panels and 305 is the glass pane.

In the shown embodiments the protrusions are directed away from the building, however, it should be understood that the arrangement can be reversed, with the protrusions being directed towards the building.

Figure 4 represents an embodiment of a building that is configured to purify ambient air, wherein 402 is a HVAC system on the roof, 402 are air duct pipes to connect clean air from the channel formed between the panels and the glass covering into the HVAC system, 403 is an arrow showing the air passing over the panels all the way up to the HVAC and 404 are the panels that are covered by the front glass. The space between the panels and the glass covering forms a channel that is a chimney effect because it extends over a substantial height. Figure 5 represents another embodiment of a building that is configured to purify ambient air, wherein 501 is a rainwater reservoir with rainwater for washing the panels when needed, 502 shows the direction of water passing over the panels in order to wash/maintain them. Chemicals can be added to the rainwater to facilitate cleaning of the panels when the water of the reservoir is flowed over the panels. An example of such a chemical is CaC03.

503 is a main reservoir in the basement that stores and filters the water for reuse (Gray water system). However, reuse is not limited to maintaining the panels. 504 is the water distributor as well as gutter on the top and 506 is the water collector in the bottom, which leads the water to the main storage.

In the case that the climate where the panel is installed is dry, and rain is not a viable option, a gray water system leads the wasted water such as e.g. from bathroom, toilet etc. into the main storage and after a layer of filtration can be usable to but not limited to maintain the system.

Figure 6 represents the a few different examples of the panel implementation on the building wherein 601 is the opaque (at least these are partially translucent transparent to sunlight/daylight) wall, which the panels are implemented directly on the walls, 602 is the double fagade in which the building does not have an HVAC and clean air enters the building through a non-central AC (Air Conditioning system), e.g. through an air-conditioning system for a particular floor of the building, 603 is another type of double fagade that does not block the window and if the inside window opens, the clean air can refresh the inside through a closable opening, such as e.g. a window. Based on the type of building or design this can be designed differently, although the panels remain essentially the same.

Figure 7 represents a panel wall construction detail for the cases that the insulation is the priority, which is also based on the different design have the ability of using different approach/components wherein 701 is the main building wall, 702 is the mineral wool if necessary, 703 and 704 are the construction detail that hold the whole construction on the wall, 705 is an embodiment of the panel, 706 is the spiders which holds the covering glass and 707 is the glass. Figure 8 represents a sample building construction detail that corresponds to 3D view of the building is illustrated in Figure 12. A section of the fagade comprises 50*100mm profiles with total length of 18 m, 21 m aluminum profile, 18 m 2 panels and 18 m 2 laminated glass, held together by spider connectors.

Figure 9 is another application of the panel as the front face (highway/road) of a highway noise barrier, which purifies the air, wherein 901 is the Y shape on the top that collects the rain as well as limit the noise level, 902 is the panel in a different size, 903 shows the possibility of using solar cell on top of the noise barrier, 904 is the water pipe that leads the water into the 905, which is the main water storage for but not limited to maintenance purposes.

Figure 10 represents one of the other applications of the panel as the back face (street) of a highway noise barrier wherein 1001 is the plant (moss) grown on the back side of the product, which purifies the air as well as produces oxygen and 1002 shows the environmental affect and improvements of this product on the human’s life.

Figure 1 1 represents also another application of an embodiment of the panel as a noise barrier while it is purifying the air in a train station. In the prior art, aluminum comps panels are used with the mat glass top layer. According to the present embodiment, panel is used in comparable size to the prior panel with similar shape and dimensions. The panels according to the present embodiments have a higher acoustic absorption level and are capable of purifying the ambient air.

Figure 12 represents a 3D rendering of the embodiment of the panels that fits into another design wherein 1201 and all brown parts are the embodiment of the panels, 1202 is glass part and shows the flexibility of the design on the building and 1203 is the main building.

Figure 13 represents a sectional view of a panel installed on a building using transparent materials, in which 1301 represents a wall, 1302 represents vertical construction materials that fit panels on the structure, 1303 represents the vertical aluminum structure that keeps the front layer (outside) material (e.g. ETFE/Polycarbonate), 1304 represents a horizontal aluminum profile that will be connected to the walls and 1302, 1305 are the panels, 1306 is the front layer that covers the whole structure.

Figure 14 illustrates a building with panels are installed with 1401 representing the area where transparent panels are installed, 1402 represents the flexibility of the design to look better, which is covered with conventional aluminum comps panels, 1403 illustrates the interior view of the transparent panels and 1404 illustrates the interior office view of the building. The various aspects and implementations have been described in conjunction with various embodiments herein. However, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed subject-matter, from a study of the drawings, the disclosure, and the appended claims. In the claims, the word “comprising” does not exclude other elements or steps, and the indefinite article“a” or“an” does not exclude a plurality. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measured cannot be used to advantage.

The reference signs used in the claims shall not be construed as limiting the scope. Unless otherwise indicated, the drawings are intended to be read (e.g., cross-hatching, arrangement of parts, proportion, degree, etc.) together with the specification, and are to be considered a portion of the entire written description of this disclosure.