WO2012094700A1 - A solar collector ventilation arrangement - Google Patents
A solar collector ventilation arrangement Download PDFInfo
- Publication number
- WO2012094700A1 WO2012094700A1 PCT/AU2011/001680 AU2011001680W WO2012094700A1 WO 2012094700 A1 WO2012094700 A1 WO 2012094700A1 AU 2011001680 W AU2011001680 W AU 2011001680W WO 2012094700 A1 WO2012094700 A1 WO 2012094700A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- breathing
- arrangement
- enclosure
- cowling
- path
- Prior art date
Links
Classifications
-
- 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
- F24S10/50—Solar heat collectors using working fluids the working fluids being conveyed between plates
- F24S10/506—Solar heat collectors using working fluids the working fluids being conveyed between plates having conduits formed by inflation of portions of a pair of joined sheets
-
- 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
- F24S10/50—Solar heat collectors using working fluids the working fluids being conveyed between plates
- F24S10/55—Solar heat collectors using working fluids the working fluids being conveyed between plates with enlarged surfaces, e.g. with protrusions or corrugations
-
- 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
- F24S10/75—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations
- F24S10/753—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations the conduits being parallel to each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
- F24S25/20—Peripheral frames for modules
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/50—Preventing overheating or overpressure
- F24S40/53—Preventing overheating or overpressure by venting solar heat collector enclosures
-
- 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
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/47—Mountings or tracking
Definitions
- This invention relates to a ventilation arrangement for an enclosure.
- the invention is particularly adapted for use with enclosures exposed to atmosphere, such as solar collector panel enclosures.
- Solar collector panels generally include a heat transfer fluid circuit having risers and headers enclosed in a box with a transparent lid, usually of glass or other transparent material, to permit the solar energy to impinge on the risers.
- a transparent lid usually of glass or other transparent material
- the present invention provides a solar collector assembly including a housing with ventilation means including a weather shield adapted to impede the ingress of water into the ventilation means.
- the arrangement can include a corner cap and a corner wall segment, wherein the ventilation means can be formed in a wall segment and can include a breathing path extending between the exterior of the enclosure and the interior of the enclosure.
- the path can be formed as a slot in an upper edge of the wall segment.
- the cap can close the open upper side of the slot.
- the slot can form a meander path.
- the breathing arrangement can include an external cowling shielding the external end of the breathing path.
- the cowling can be formed on the cap.
- the cowling can be spaced from the wall segment to provide an airway enabling the breathing path to communicate with external air.
- Figure 1 is a schematic illustration of a solar collector.
- Figure 2 is a partial section view of a solar collector having pipe risers.
- Figure 3 is a partial section view of a solar collector according to another embodiment of the invention.
- Figure 4 illustrates a novel extrusion adapted for forming the walls of a solar collector enclosure according to an embodiment of the invention.
- Figure 5 illustrates a comer assembly according to an embodiment of the invention adapted for use with the extrusion of Figure 4.
- Figure 6 is an underside view of a corner of a solar collector enclosure according to an embodiment of the invention.
- Figure 7 is a cut-away illustration of the corner of a solar collector enclosure according to an embodiment of the invention.
- Figure 8 shows detail of a meander breather path according to an embodiment of the invention.
- Figure 9 is a cut-away view of a corner of a solar collector enclosure according to an embodiment of the invention.
- FIG. 1 Illustrated in Figure 1 is a simplified illustration of a solar collector.
- the box includes side walls 1.006 with a peripheral seat 1.010 for a glass cover (not shown). The glass is sealed to the box around the peripheral seat.
- the heat transfer path includes an upper and lower header 1.018,
- Figure 2 illustrates a section of a first embodiment of a solar collector.
- the wall extrusion 2.024 (described in detail in Figure 4) includes an external overhang 2.040 which can serve for use in lifting the collector by installers when installing to collector on a roof or elsewhere, and an external channel 2.025 which can be used for fixing the collector assembly to its mount or mounting structure.
- the overhang 2.040 also provides impact protection for the edge of the toughened glass cover and can shield the external portions of grommet rubber fittings to reduce weathering thereof.
- the glass cover 2.034 is seated on a peripheral seat provided by the wall extrusion 2.024 and channel and cooperating corner assemblies such as those illustrated in figure 5, and is sealed thereto.
- the risers 2.014 in this embodiment are located under and in thermal contact with an absorber plate 2.032.
- the solar energy can pass through the glass 2.034 and impinge on the absorber plate 2.032 from whence the heat is thermally conducted to the risers 2.014 for delivery to the outlet header.
- a base panel 2.026 doses off the lower side of the enclosure.
- the extrusion 2.024 includes a channel 4.056 for receiving the edges of the base plate or panel 2.026, and the comer assemblies (illustrated in Figure 5) also include seats 5.087 for the corners of the base plate or panel 2.026.
- Insulation 2.028 is provided between the collector risers 2.014 and the base plate or panel 2.026.
- Figure 3 is an alternative assembly where multiple risers are formed in a unitary manner in a plate 3.038, which is assembled in much the same way as in the preceding description except that the absorber plate 2.032 is not required as the riser plate 2.038 has an upper surface which serves the same function.
- FIG. 4 illustrates the wall extrusion profile.
- the wall 4.048 has upper formations including:
- channel 4.044 forms a glass seat rim 4.045;
- Figure 5 illustrates a comer assembly according to an embodiment of the invention.
- the comer assembly includes a cap 5.070 and a wall segment 5.082.
- the cap and wall segment are adapted to conform to the shape of the wall extrusions and its recesses.
- the cap 5.070 includes an overhang 5.072 which forms a continuation of the extrusion overhang 4.040.
- the cap overhang 5.072 includes a projection 5.074 which is adapted to be a close fit within the underside of the extrusion overhang 4.040.
- the cap 5.070 includes a second projection 5.076 which is adapted to fit under channel 4.044 of the extrusion.
- the cap also includes a glass seat 5.080 and seal formations 5.078.
- the cap wall 5.079 extends downward below the glass seat and transversely thereto.
- the comer wall segment includes a pair of intersecting walls 5.084,
- the lower spigots 5.092, 5.094 include drain channel slots.
- a sealant injection point 5.096 communicates with a sealant channel
- a purge point 5.100 is provided at the top of the sealant channel and the end of the purge point is located so that the end of the purge point is visible beyond the edge of the extrusion, allowing the person injecting the sealant to view the purge point to determine when the sealant channel is full.
- a similar sealing injection point, sealant channel and purge point are provided on corner wall 5.086.
- the base panel channel 5.087 accommodates the corner of the base panel inserted in the base panel channel 4.056 of the wall extrusion.
- the cap 5.070 and corner wall segment 5.082 can include a snap fit arrangement to attach the cap to the corner wall segment.
- Figure 6 is a partial view of the underside of the comer assembly according to an embodiment of the invention.
- the cap overhang 6.072 is shown interfacing with the extrusion overhang 6.040.
- the comer wall 6.086 interfaces with the extrusion wall 6.048.
- Webs such as 6.121 extend radially from the underside of the comer portion of the overhang.
- the wall 6.079 of the cap includes a cowling 6.120 at the comer.
- the cowling 6.120 is spaced from the comer segment wall 6.086 to provide an air pathway 6.122, referred to herein as a "snorkel airway".
- the ventilated distance between the comer block and the snorkel airway can be sufficiently narrow to prevent a water droplet passing due to surface tension.
- the cowling is covered from rainfall by the overhang 6.072.
- the cowling 6.122 is shaped with a downward curve forming a downward facing apex and the thickness of the cowling can be chamfered to be lower on the outer surface than the inner surface to encourage water to run to a "drip point".
- FIG. 7 is a cutaway illustration showing details of the breathing path or snorkel airway according to an embodiment of the invention.
- the snorkel airway communicates with a meander channel 7.124 formed in the top edge of the comer wall 7.086.
- the meander channel has an external opening 7.123 and an internal opening 9.126 ( Figure 9).
- the meander channel or snorkel airway accesses the interior of the solar collector enclosure beneath the glass seal formations 7.078 formed in the comer cap.
- FIG. 8 is a simplified drawing illustrating the meander path 8.124 which runs from the outside of the comer wall 8.086 to the inside of the wall.
- the meander path 8.124 has an elongated central portion, a first bend near the exterior side of wall 8.086, and a second bend near the inner side of the wall, approximating a Z or S shape.
- the underside of the cap closes the top of the meander path, while the upper side of the glass seat supports the glass, so the meander path accesses the interior of the enclosure.
- the meander path is in communication with the snorkel airway so the enclosure can "breath" to exchange air with the exterior of the enclosure.
- Solar collectors are installed on an incline, and the meander paths can be arranged with their elongate central portions aligned with the inclined sides of the collector so the interior access point of the meander path is above the snorkel when the collector is installed.
- Figure 9 is another cutaway view showing detail of the breathing arrangement.
- the cap 9.070 is "cut” along the central underside webs 6.021 shown in Figure 6.
- the cap overhang 9.072 again interfaces with the extrusion overhang 9.040.
- the snorkel 9.120 is spaced from the comer wall 9.086 leaving a breathing gap or air pathway 9.122 which communicates with the external end of the meander path at 9.123.
- the meander path interior opening emerges at 9.126, which is located below the glass seal formations 9.078 and glass seat 9.080.
- the glass seat 9.080 can be slightly higher than the seal formations 9.078 to allow sealant to be injected into the seal formations.
- the finished collector tray is held against a datum and jigged square
- a "J” -shaped insert (Skirt-Trim profile) is clipped into channel 4.044 (B) of the aluminium profile;
- a robot lays down a consistent volume and size of sealant bead around the perimeter of the collector panel at a specific location on glazing silicone seat bed 4.042;
- the glass is picked up with manipulator and measure checked via sensors to ensure glass is within specification tolerance and the coordinate position is automatically adjusted to place glass centrally and firmly onto collector panel tray/silicone bead.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ613067A NZ613067A (en) | 2011-01-12 | 2011-12-22 | A solar collector ventilation arrangement |
AU2011355593A AU2011355593B2 (en) | 2011-01-12 | 2011-12-22 | A solar collector ventilation arrangement |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2011900092A AU2011900092A0 (en) | 2011-01-12 | A Solar Collector Ventilation Arrangement | |
AU2011900092 | 2011-01-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012094700A1 true WO2012094700A1 (en) | 2012-07-19 |
Family
ID=46506694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2011/001680 WO2012094700A1 (en) | 2011-01-12 | 2011-12-22 | A solar collector ventilation arrangement |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2011355593B2 (en) |
NZ (1) | NZ613067A (en) |
WO (1) | WO2012094700A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3990429A (en) * | 1975-02-18 | 1976-11-09 | Ppg Industries, Inc. | Solar heat collector having a breather tube |
US4409965A (en) * | 1981-12-10 | 1983-10-18 | Sun Wise, Inc. | Solar energy conversion apparatus |
US4544166A (en) * | 1983-04-28 | 1985-10-01 | Nissan Motor Co., Ltd. | Breather for electrical apparatus |
US20030050002A1 (en) * | 2001-09-12 | 2003-03-13 | Steven Pfister | Ventilated outdoor electronics enclosure |
-
2011
- 2011-12-22 AU AU2011355593A patent/AU2011355593B2/en active Active
- 2011-12-22 WO PCT/AU2011/001680 patent/WO2012094700A1/en active Application Filing
- 2011-12-22 NZ NZ613067A patent/NZ613067A/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3990429A (en) * | 1975-02-18 | 1976-11-09 | Ppg Industries, Inc. | Solar heat collector having a breather tube |
US4409965A (en) * | 1981-12-10 | 1983-10-18 | Sun Wise, Inc. | Solar energy conversion apparatus |
US4544166A (en) * | 1983-04-28 | 1985-10-01 | Nissan Motor Co., Ltd. | Breather for electrical apparatus |
US20030050002A1 (en) * | 2001-09-12 | 2003-03-13 | Steven Pfister | Ventilated outdoor electronics enclosure |
Also Published As
Publication number | Publication date |
---|---|
AU2011355593B2 (en) | 2017-02-02 |
NZ613067A (en) | 2014-05-30 |
AU2011355593A1 (en) | 2013-08-01 |
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