WO2015054152A1 - Cuiseur solaire léger et gonflable - Google Patents

Cuiseur solaire léger et gonflable Download PDF

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Publication number
WO2015054152A1
WO2015054152A1 PCT/US2014/059344 US2014059344W WO2015054152A1 WO 2015054152 A1 WO2015054152 A1 WO 2015054152A1 US 2014059344 W US2014059344 W US 2014059344W WO 2015054152 A1 WO2015054152 A1 WO 2015054152A1
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WO
WIPO (PCT)
Prior art keywords
inflatable
chamber
light weight
upper chamber
solar cooker
Prior art date
Application number
PCT/US2014/059344
Other languages
English (en)
Inventor
Bingwu Gu
Original Assignee
Bingwu Gu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US14/504,998 external-priority patent/US9709300B2/en
Application filed by Bingwu Gu filed Critical Bingwu Gu
Priority to CN201480054959.1A priority Critical patent/CN105593608B/zh
Publication of WO2015054152A1 publication Critical patent/WO2015054152A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/75—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with conical reflective surfaces
    • 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
    • F24S20/30—Solar heat collectors for heating objects, e.g. solar cookers or solar furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/50—Rollable or foldable solar heat collector modules
    • F24S20/55—Rollable or foldable solar heat collector modules made of flexible materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/30—Arrangements for concentrating solar-rays for solar heat collectors with lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/81—Arrangements for concentrating solar-rays for solar heat collectors with reflectors flexible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S2080/01—Selection of particular materials
    • F24S2080/015—Plastics
    • 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
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
    • Y02B40/18—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers using renewables, e.g. solar cooking stoves, furnaces or solar heating
    • 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
    • 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

  • This invention relates to the field of solar energy, more specifically, relates to the direct use of solar radiation for cooking, heating, and other thermal application through a balloon solar concentrator.
  • an Inflatable Light Weight Solar Cooker comprising an Inflatable Upper Chamber (205), a Lower Chamber (210), and a Cooking Chamber (215).
  • an Inflatable Upper Chamber (300) comprises an inflatable upper chamber substantially transparent refractive upper lens (305), a substantially conical outer wall (310), a substantially reflective inner wall (315), a substantially transparent lower lens (320), and at least one gas passage nozzle (325).
  • the inflatable upper chamber substantially transparent refractive upper lens (305) comprises a flexible material selected from the group consisting of polyester film, polyvinyl film, polyethylene film, and polyethylene terephthalate film.
  • the substantially conical outer wall (310) comprises a flexible material selected from the group consisting of polyester film, polyvinyl film, polyethylene film, and polyethylene terephthalate film.
  • the substantially reflective inner wall (315) comprises a flexible material selected from the group consisting of reflective polyester film, reflective polyvinyl film, and aluminized coating on a flexible substrate.
  • the substantially transparent lower lens (320) comprises a flexible material selected from the group consisting of polyester film, polyvinyl film, polyethylene film and polyethylene terephthalate film.
  • the Inflatable Upper Chamber (300) has an Inflatable Upper Chamber solar radiation entrance width 'a' (405), and an Inflatable Upper Chamber solar radiation exit width 'b' (410), wherein the Inflatable Upper Chamber solar radiation entrance width 'a' is less than three times the Inflatable Upper Chamber solar radiation entrance width * b * .
  • the Lower Chamber (500) comprises an inflatable outer wall (505), a inner chamber (510) and at least one gas passage nozzle (515) and has a substantially cylindrical shape.
  • the Lower Chamber (600) is inflatable and comprises a outer surface (605), an at least partially open inner chamber (610) and at least one gas passage nozzle (615) and has a semi-circular toroidal shape.
  • the outer surface is reflective.
  • the Lower Chamber (700) is inflatable and comprises an outer surface (705), an at least partially open inner chamber (710) and at least one gas passage nozzle (715) and has a toroidal shape.
  • a supporting stand adjacent to the Inflatable Upper Chamber (805) for providing stability of the Inflatable Upper Chamber (805) with regard to the Lower Chamber (810).
  • a supporting strap (830) affixing a supporting stand (825) to the Inflatable Upper Chamber (805).
  • FIG. 1 shows a system for an Inflatable Light Weight Solar Cooker (100) with a Sun (S). Additional figures and descriptions in this disclosure detail the structure and function of the Inflatable Light Weight Solar Cooker (100). Also shown is a Sun (S).
  • S Sun
  • FIG. 2 shows certain components of an Inflatable Light Weight Solar Cooker (200). Shown in FIG. 2 are an Inflatable Light Weight Solar Cooker (200) comprising an Inflatable Upper Chamber (205), a Lower Chamber (210), and a Cooking Chamber (215). Also shown is a Sun (S).
  • an Inflatable Light Weight Solar Cooker 200
  • Shown in FIG. 2 are an Inflatable Light Weight Solar Cooker (200) comprising an Inflatable Upper Chamber (205), a Lower Chamber (210), and a Cooking Chamber (215). Also shown is a Sun (S).
  • FIG. 3 shows certain details of an Inflatable Upper Chamber (300). Shown in FIG. 3 are an inflatable upper chamber substantially transparent refractive upper lens (305), a substantially conical outer wall (310), a substantially reflective inner wall (315), a substantially transparent lower lens (320), and at least one gas passage nozzle (325).
  • an inflatable upper chamber substantially transparent refractive upper lens 305
  • a substantially conical outer wall 310
  • a substantially reflective inner wall 315
  • a substantially transparent lower lens 320
  • at least one gas passage nozzle 325.
  • Fig. 4 provides details about a mathematical relationship of the shape of the Inflatable Upper Chamber (400) to have a high optical efficiency.
  • the Inflatable Upper Chamber (400) is presumed to have a true trapezoid shape.
  • FIG. 5a and 5b shows an embodiment of an Lower Chamber (500).
  • the Lower Chamber (500) models a hollow cylinder comprising an inflatable outer wall (505), a inner chamber (510) and at least one gas passage nozzle (515).
  • FIG. 6 shows another embodiment of an Lower Chamber (600).
  • the Lower Chamber (600) has a semi-circular toroidal shape and comprises an outer surface (605), an at least partially open inner chamber (610) and at least one gas passage nozzle (615).
  • FIG. 7 shows another embodiment of an Lower Chamber (700).
  • the Lower Chamber (700) models a torus comprising an outer surface (705), an at least partially open inner chamber (710) and at least one gas passage nozzle (715).
  • FIG. 8 shows an embodiment of an Inflatable Light Weight Solar Cooker (800) with an Inflatable Upper Chamber (805) having an inner reflective surface as previously described, a Lower Chamber (810) with reflective inner surface (815), a Lower Chamber transparent cover (820), a supporting stand (825) and supporting strap (830).
  • FIG. 9 shows an embodiment of an Inflatable Light Weight Solar Cooker (900) with an Inflatable Upper Chamber (905) having an inner reflective surface as previously described, a cowling with inner reflective surface (910), a Lower Chamber (915), a cooking chamber (920), a supporting stand (925) and a supporting strap (930).
  • Fig. 10 shows a method for delivering thrice-concentrated sunlight into a cooking chamber.
  • FIG. 1 shows a system for an Inflatable Light Weight Solar Cooker (100) with a Sun (S). Additional figures and descriptions in this disclosure detail the structure and function of the Inflatable Light Weight Solar Cooker (100). Also shown is a Sun (S).
  • S Sun
  • FIG. 2 shows certain components of an Inflatable Light Weight Solar Cooker (200). Shown in FIG. 2 are an Inflatable Light Weight Solar Cooker (200) comprising an Inflatable Upper Chamber (205), a Lower Chamber (210), and a Cooking Chamber (215). Also shown is a Sun (S).
  • an Inflatable Light Weight Solar Cooker 200
  • Shown in FIG. 2 are an Inflatable Light Weight Solar Cooker (200) comprising an Inflatable Upper Chamber (205), a Lower Chamber (210), and a Cooking Chamber (215). Also shown is a Sun (S).
  • the Inflatable Upper Chamber (205) functions as a three-stage primary solar concentrator so that a majority of sunlight striking the Inflatable Upper Chamber (205) is concentrated through the Inflatable Light Weight Solar Cooker (100). In some embodiments, the solar radiation from the sun (S) could be concentrated to as much as ten suns into the Cooking Chamber (215).
  • Fig. 3 provides additional details about the structure and function of the Inflatable Upper Chamber (205).
  • the Lower Chamber (210) functions as an additional two-stage solar concentrator for the Inflatable Light Weight Solar Cooker (100) to (a) direct solar radiation into the Cooking Chamber (215) that exits the Inflatable Upper Chamber (205) but does not enter the Cooking Chamber (215), and (b) functions as a barrier against convective heat escape by trapping hot air within the Lower Chamber (210).
  • the Lower Chamber (210) thus assures more heat is delivered to the Cooking Chamber (215).
  • Fig. 5 provides additional details about the structure and function of the Lower Chamber (210).
  • FIG. 3 shows certain details of an Inflatable Upper Chamber (300). Shown in FIG. 3 are an inflatable upper chamber substantially transparent refractive upper lens (305), a substantially conical outer wall (310), a substantially reflective inner wall (315), a substantially transparent lower lens (320), and at least one gas passage nozzle (325).
  • an inflatable upper chamber substantially transparent refractive upper lens 305
  • a substantially conical outer wall 310
  • a substantially reflective inner wall 315
  • a substantially transparent lower lens 320
  • at least one gas passage nozzle 325.
  • the inflatable upper chamber substantially transparent refractive upper lens (305) receives sunlight and refracts the sunlight into the interior of the Inflatable Upper Chamber (300). This is the first stage of the Inflatable Upper Chamber (300) as a three-stage primary solar concentrator for the Inflatable Light Weight Solar Cooker (100).
  • the inflatable upper chamber substantially transparent refractive upper lens (305) must be sufficiently pliable and have sufficient tensile strength to be inflatable.
  • the inflatable upper chamber substantially transparent refractive upper lens (305) must be substantially transparent to allow sunlight to pass through and into the interior of the Inflatable Upper Chamber (300).
  • the inflatable upper chamber substantially transparent refractive upper lens (305) must have at least a marginal refractive index to refract sunlight into the interior of the Inflatable Upper Chamber (300).
  • the inflatable upper chamber substantially transparent refractive upper lens (305) may be clear polyester film, including that sold under the Mylar ® brand.
  • the substantially conical outer wall (310) is a structural component providing a conical shape to the Inflatable Upper Chamber (300), and may be opaque, partially transparent, or wholly transparent.
  • the substantially conical outer wall (310) similarly must be sufficiently pliable and have sufficient tensile strength to be inflatable. In some
  • the substantially conical outer wall (310) may also be polyester film.
  • the conical shape of the substantially conical outer wall (310) is one-half of the second stage of the Inflatable Upper Chamber (300) as a three- stage primary solar concentrator for the Inflatable Light Weight Solar Cooker (100).
  • the substantially reflective inner wall (315) reflects sunlight striking the substantially refiective inner wall (315) from the inflatable upper chamber substantially transparent refractive upper lens (305) so that the sunlight is directed further along the substantially conical outer wall (310).
  • the substantially reflective inner wall (315) may comprise a polyester film, including Mylar ® , metalized or with a reflective coating, film or other reflective structure integrated or affixed to fulfill the reflective function.
  • the substantially reflective inner wall (315) may comprise a polyethylene (PE) film or polyethylene terephthalate (PET) film.
  • the substantially reflective inner wall (315) may comprise an aliphatic polyamide film, including nylon, metalized or with a reflective coating, film or other reflective structure integrated or affixed to fulfill the reflective function.
  • the substantially reflective inner wall (315) may comprise an aluminum coating on a flexible substrate.
  • the substantially reflective inner wall (315) may be a polyvinyl chloride (PVC) reflective film.
  • PVC polyvinyl chloride
  • the substantially reflective inner wall (315) may be integrated with the substantially conical outer wall (310). In some embodiments, the substantially reflective inner wall (315) may be subsurface, i.e., a layer, between the substantially conical outer wall (310) and a substantially transparent layer within the Inflatable Upper Chamber (300).
  • the substantially reflective inner wall (315) is the second-half of the second stage of the Inflatable Upper Chamber (300) as a three- stage primary solar concentrator for the Inflatable Light Weight Solar Cooker (100).
  • the substantially reflective inner wall (315) must be sufficiently pliable and have sufficient tensile strength to be inflatable.
  • the substantially transparent lower lens (320) receives sunlight from the substantially reflective inner wall (315) and the inflatable upper chamber substantially transparent refractive upper lens (305) and refracts the sunlight into the adjacent structures.
  • the substantially transparent lower lens (320) is the third stage of the Inflatable Upper Chamber (300) as a three-stage primary solar concentrator for the Inflatable Light Weight Solar Cooker (100).
  • the substantially transparent lower lens (320) must be substantially transparent to allow sunlight to pass out of the Inflatable Upper Chamber (300).
  • the substantially transparent lower lens (320) has a refractive index greater than one.
  • the inflatable upper chamber substantially transparent refractive upper lens (305) is about three times wider than the substantially transparent lower lens (320). This mathematical relationship is not required for use, but rather, provides for optimum efficiency of the Inflatable Light Weight Solar Cooker (200).
  • the substantially transparent lower lens (320) must be sufficiently pliable and have sufficient tensile strength to be inflatable.
  • the substantially transparent lower lens (320) may be clear polyester film, including that sold under the Mylar ® brand.
  • the inflatable upper chamber substantially transparent refractive upper lens (305), the substantially conical outer wall (310) and the substantially transparent lower lens (320) make the Inflatable Upper Chamber (300) function as a cone shape sunlight concentrator.
  • the at least one gas passage nozzle (325) is a port for the passage of a transparent gas into, out of, or into and out of the Inflatable Upper Chamber (300) so the Inflatable Upper Chamber (300) may be inflated, deflated, or inflated and deflated.
  • Other embodiments may have a plurality of gas passage nozzles (325).
  • a plurality of gas passage nozzles (325) may be required in an embodiment in which one or more of the inflatable upper chamber substantially transparent refractive upper lens (305), the substantially conical outer wall (310), the substantially reflective inner wall (315), or the substantially transparent lower lens (320) is inflated either separated, or as a separate set from one or more of the structures of the Inflatable Upper Chamber (300).
  • the at least one gas passage nozzle (325) is flexible in some embodiments so that all structures of the Inflatable Upper Chamber (300) might be made of the same material.
  • the at least one gas passage nozzle (325) is flexible in some embodiments so that the Inflatable Upper Chamber (300) might be deflated and compressed for storage and not risking damage, which might occur if the at least one gas passage nozzle (325) were a non- flexible material.
  • Fig. 4 provides details about a mathematical relationship of the shape of the Inflatable Upper Chamber (400) to have a high optical efficiency.
  • the Inflatable Upper Chamber (400) is presumed to have a true trapezoid shape.
  • FIG. 4 Shown in Fig. 4 as a presumably true trapezoid, is a Inflatable Upper Chamber solar radiation entrance (405), which is dimensioned as 'a'.
  • the inflatable upper chamber substantially transparent refractive upper lens (305) is connected to the Inflatable Upper Chamber (300) along this side.
  • FIG. 4 Also shown in FIG. 4 is a Inflatable Upper Chamber solar radiation exit (410) which is dimensioned as 'b'.
  • the substantially transparent lower lens (320) is connected to the Inflatable Upper Chamber (300) along this side.
  • the Inflatable Upper Chamber solar radiation entrance (405) and the Inflatable Upper Chamber solar radiation exit (410) are parallel to each other.
  • FIG. 4 Also shown in FIG. 4 are sides (415) of the Inflatable Upper Chamber which are dimensioned as 'h' and form an angle ⁇ ("theta") against a right angle formed by side a, or side b and a perpendicular line to side a, or side b.
  • angle ⁇ has a tangent of (a-b) / (2*h) (1)
  • height h should satisfy equation (4) to maximize concentrating the sunlight entering the Inflatable Upper Chamber solar radiation entrance (405) and leaving the Inflatable Upper Chamber solar radiation exit (410).
  • the dimension of the Inflatable Upper Chamber solar radiation entrance (405) should not be greater than three times of dimension "b", the Inflatable Upper Chamber solar radiation exit (410), i.e., a ⁇ 3b (4)
  • FIG. 5a and 5b shows an embodiment of an Lower Chamber (500). In this case
  • the Lower Chamber (500) models a semi-hollow cylinder comprising an inflatable outer wall (505), a inner chamber (510) and at least one gas passage nozzle (515).
  • the inflatable outer wall (505) provides support for the Lower Chamber (500) to stage semi-right when inflated.
  • the inflatable outer wall (505) may be polyester film, including that sold under the Mylar® brand.
  • the inflatable outer wall (505) might be a polyvinyl chloride (PVC) film, polyester film, polyethylene (PE) film, polyethylene terephthalate (PET) film.
  • PVC polyvinyl chloride
  • PET polyethylene
  • the inflatable outer wall (505) could be opaque, transparent, or have partial transparency.
  • the Lower Chamber (500) may serve a plurality of purposes.
  • the Lower Chamber (500) is a secondary solar concentrator to the Inflatable Upper Chamber.
  • the inner chamber (510) comprises a reflective inner surface.
  • the reflective inner surface may be clear polyester film, including that sold under the Mylar® brand.
  • the reflective inner surface might be reflective polyvinyl chloride (PVC) film.
  • the reflective inner surface might be aluminum metalized coating.
  • the inner chamber (510) also serves a holding reservoir for cooking or heating foodstuff, heating beverages, or both.
  • the Lower Chamber is integrated with the cooking chamber. While the foodstuff or beverage would typically be placed in a separate container to preserve cleanliness of the foodstuff or beverage, the inner chamber (510) might also serve as a container, for which the Lower Chamber (500) might have a sealed bottom (not shown).
  • the at least one gas passage nozzle (515) is a port for the passage of a transparent gas into, out of, or into and out of the Lower Chamber (500) so the Lower Chamber (500) may be inflated, deflated, or inflated and deflated.
  • Other embodiments may have a plurality of gas passage nozzles (515).
  • the at least one gas passage nozzle (515) is flexible in some embodiments so that all structures of the Lower Chamber (500) might be made of the same material.
  • the at least one gas passage nozzle (515) is flexible in some embodiments so that the Lower Chamber (500) might be deflated and compressed for storage and not risking damage, which might occur if the at least one gas passage nozzle (515) were a non- flexible material.
  • the Lower Chamber (500) may also comprise a Lower Chamber transparent cover (520) for trapping heated air within the Lower Chamber (500).
  • the Lower Chamber (500) is a two-stage solar concentrator.
  • the Lower Chamber transparent cover (520) may be clear polyester film, including that sold under the Mylar ® brand.
  • FIG. 6 shows another embodiment of an Lower Chamber (600).
  • the Lower Chamber (600) models a toroid semi-circle comprising an outer surface (605), an at least partially open inner chamber (610) and at least one gas passage nozzle (615).
  • This embodiment of the Lower Chamber (600) presents certain advantages in that the toroid semi-circle shape, when deflated, folds into a smaller size than some other shapes.
  • the Lower Chamber (600) may cradle a food container and provide a base for the Inflatable Upper Chamber as well.
  • the outer surface (605) may be a polyester film, including that sold under the Mylar® brand. In other embodiments, the outer surface (605) might be polyvinyl chloride (PVC) film.
  • the outer surface (605) may be clear. In some embodiments, the outer surface (605) may be reflective. In other embodiments, the outer surface (605) might be aluminum metalized coating. If reflective, the Lower Chamber (600) would assist in heating the food or beverage within the Inflatable Light Weight Solar Cooker.
  • the at least partially open inner chamber (610) may be small or large as designed to accommodate whatever cooking container is used, if one is used.
  • the at least partially open inner chamber (610) may have a sealed bottom so that a flexible cooking container, perhaps made of a flexible plastic, such as a polyethylene bag, or even a paper bag, may be placed on the at least partially open inner chamber (610) for heating and cooking.
  • the at least one gas passage nozzle (615) is a port for the passage of a transparent gas into, out of, or into and out of the Lower Chamber (600) so the Lower Chamber (600) may be inflated, deflated, or inflated and deflated.
  • Other embodiments may have a plurality of gas passage nozzles (615).
  • the at least one gas passage nozzle (615) is flexible in some embodiments so that all structures of the Lower Chamber (600) might be made of the same material.
  • the at least one gas passage nozzle (615) is flexible in some embodiments so that the Lower Chamber (600) might be deflated and compressed for storage and not risking damage, which might occur if the at least one gas passage nozzle (615) were a non- flexible material.
  • FIG. 7 shows another embodiment of an Lower Chamber (700).
  • the Lower Chamber (700) models a torus comprising an outer surface (705), an at least partially open inner chamber (710) and at least one gas passage nozzle (715).
  • this embodiment of the Lower Chamber (600) presents certain advantages in that the toroid shape, when deflated, folds into a smaller size than some other shapes.
  • the Lower Chamber (700) is deeper for cradling larger food container and provides a base for the Inflatable Upper Chamber as well.
  • the outer surface (705) may be a polyester film, including that sold under the Mylar® brand. In other embodiments, the outer surface (705) might be polyvinyl chloride (PVC) film. [0085] In some embodiments, the outer surface (705) may be clear. In some embodiments, the outer surface (705) may be reflective polyester film or reflective polyvinyl chloride (PVC) film In other embodiments, the reflective inner surface might be aluminum metalized coating. If reflective, the Lower Chamber (700) would assist in heating the food or beverage within the Inflatable Light Weight Solar Cooker.
  • the at least partially open inner chamber (710) may be small or large as designed to accommodate whatever cooking container is used, if one is used.
  • the at least partially open inner chamber (710) may have a sealed bottom so that a flexible cooking container, perhaps made of a flexible plastic, such as a polyethylene bag, or even a paper bag, may be placed on the at least partially open inner chamber (710) for heating and cooking.
  • the at least one gas passage nozzle (715) is a port for the passage of a transparent gas into, out of, or into and out of the Lower Chamber (700) so the Lower Chamber (700) may be inflated, deflated, or inflated and deflated.
  • Other embodiments may have a plurality of gas passage nozzles (715).
  • the at least one gas passage nozzle (715) is flexible in some embodiments so that all structures of the Lower Chamber (700) might be made of the same material.
  • the at least one gas passage nozzle (715) is flexible in some embodiments so that the Lower Chamber (700) might be deflated and compressed for storage and not risking damage, which might occur if the at least one gas passage nozzle (715) were a non- flexible material.
  • FIG. 8 shows an embodiment of an Inflatable Light Weight Solar Cooker (800) with an Inflatable Upper Chamber (805) having an inner reflective surface as previously described, a Lower Chamber (810) with reflective inner surface (815), a Lower Chamber transparent cover (820), a supporting stand (825) and supporting strap (830).
  • the Lower Chamber (810) is similar to other embodiments.
  • the distinction of Inflatable Light Weight Solar Cooker (800) is that the Lower Chamber (810) with reflective inner surface (815) is typically not inflatable.
  • the Lower Chamber (810) with reflective inner surface (815) may include a Lower Chamber transparent cover (820) for trapping heated air within the Lower Chamber (810) with reflective inner surface (815).
  • the Lower Chamber transparent cover (820) may be clear polyester film, including that sold under the Mylar ® brand.
  • the Lower Chamber (810) may be integrated with the cooking chamber.
  • the Lower Chamber transparent cover (820) may be polyethylene (PE) film or polyethylene terephthalate film.
  • Inflatable Light Weight Solar Cooker 800
  • a supporting stand 805 may be present.
  • Supporting stand 85) aids in keeping Inflatable Upper Chamber (805) pointed at the Sun (S) without assistance.
  • Chamber (805) is lightweight, supporting stand (825) does not have to support much weight.
  • supporting stand (825) may be comprise polyvinyl tubing, which is beneficial in being lightweight, inexpensive, easy to cut to size, and easy to assemble with off-the shelf supplies.
  • FIG. 830 Another distinction of the Inflatable Light Weight Solar Cooker (800) is that a supporting strap (830) may be present. As with the supporting stand (825), the supporting strap (830) aids in keeping Inflatable Upper Chamber (805) pointed at the Sun (S) without assistance. Similarly, supporting strap (830) may be made from lightweight, off the shelf materials, even bungee cords.
  • FIG. 9 shows an embodiment of an Inflatable Light Weight Solar Cooker (900) with an Inflatable Upper Chamber (905) having an inner reflective surface as previously described, a Cowling with inner reflective surface (910), a Lower Chamber (915), a cooking chamber (920), a supporting stand (925) and a supporting strap (930).
  • the Inflatable Light Weight Solar Cooker (900) is similar to other embodiments of the Inflatable Light Weight Solar Cooker, with the exception of the Cowling with inner reflective surface (910). In other embodiments, the Inflatable Upper Chamber of the Inflatable Light Weight Solar Cooker (900) is similar to other embodiments of the Inflatable Light Weight Solar Cooker, with the exception of the Cowling with inner reflective surface (910). In other embodiments, the Inflatable Upper Chamber of the
  • Inflatable Light Weight Solar Cooker is typically resting on or within the Lower Chamber (915). If the Lower Chamber is open, i.e., without a transparent cover, heat may escape, while debris and contaminants may enter the Cooking Chamber (920).
  • the Cowling with inner reflective surface (910) aids in both trapping heat in, and blocking debris and contaminants from entering the cooking chamber (920).
  • the Cowling with inner reflective surface (910) is also helpful when the Sun (S) is low in the sky with the Cowling with inner reflective surface (910) reflecting concentrated light from the Inflatable Upper Chamber (905) into the Lower Chamber (915).
  • the Cowling with inner reflective surface (910) may be flexible.
  • the Cowling with inner reflective surface (910) may be integrated with the Lower Chamber (915).
  • Fig. 10 shows a method for delivering thrice-concentrated sunlight into a cooking chamber.
  • the method (1000) comprises:
  • Step 1010 concentrating sunlight by refraction through an inflatable upper chamber substantially transparent refractive upper lens (305) and passing the concentrated sunlight into an Inflatable Upper Chamber (300);
  • Step 1020 concentrating the sunlight a second time in the Inflatable Upper Chamber (300) with a substantially reflective inner wall (315);
  • Step 1030 passing the sunlight through a substantially transparent lower lens (320) to concentrate the sunlight a third time by refraction;
  • Step 1040 delivering the thrice-concentrated sunlight into a cooking chamber.

Landscapes

  • 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)
  • Tents Or Canopies (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

L'invention concerne des systèmes et des procédés pour concentrer la lumière solaire dans des enveloppes gonflables afin de chauffer des substances, y compris les fluides et pour cuisiner, et pour fournir de la lumière solaire concentrée pour d'autres utilisations. Le système comprend un concentrateur de lumière solaire gonflable (ballon supérieur), un logement de cuisson gonflable (ballon inférieur), et un récipient de cuisson. Lorsqu'il est gonflé, le ballon supérieur a une forme sensiblement conique et concentre la lumière solaire en direction du ballon inférieur. Le ballon inférieur peut avoir différentes formes et et peut concentrer la lumière solaire en direction de l'espace de cuisson. Chaque ballon pèse moins de deux onces et peut être plié dans un petit emballage de poche lorsqu'il est dégonflé. L'espace de cuisson peut être un sac thermique, une boîte, ou un espace isolé.
PCT/US2014/059344 2013-10-07 2014-10-06 Cuiseur solaire léger et gonflable WO2015054152A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201480054959.1A CN105593608B (zh) 2013-10-07 2014-10-06 可充气的轻型太阳能灶

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US201361887576P 2013-10-07 2013-10-07
US61/887,576 2013-10-07
US14/504,998 2014-10-02
US14/504,998 US9709300B2 (en) 2011-12-21 2014-10-02 Inflatable light weight solar cooker

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WO2015054152A1 true WO2015054152A1 (fr) 2015-04-16

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Publication number Priority date Publication date Assignee Title
US11365903B2 (en) * 2016-09-12 2022-06-21 Yonghua Wang Inflatable non-imaging solar concentrator

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CN105593608B (zh) 2018-06-01

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