IE85840B1 - A composite insulating panel - Google Patents

A composite insulating panel Download PDF

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Publication number
IE85840B1
IE85840B1 IE2007/0416A IE20070416A IE85840B1 IE 85840 B1 IE85840 B1 IE 85840B1 IE 2007/0416 A IE2007/0416 A IE 2007/0416A IE 20070416 A IE20070416 A IE 20070416A IE 85840 B1 IE85840 B1 IE 85840B1
Authority
IE
Ireland
Prior art keywords
panel
width
outer face
crowns
heat
Prior art date
Application number
IE2007/0416A
Other versions
IE20070416A1 (en
Inventor
Carolan James
Flynn Gregory
Original Assignee
Kingspan Research And Developments Limited
Filing date
Publication date
Application filed by Kingspan Research And Developments Limited filed Critical Kingspan Research And Developments Limited
Priority to IE2007/0416A priority Critical patent/IE85840B1/en
Publication of IE20070416A1 publication Critical patent/IE20070416A1/en
Publication of IE85840B1 publication Critical patent/IE85840B1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/292—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and sheet metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/32—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
    • E04C2/322—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material with parallel corrugations
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
    • E04C2/52—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits
    • E04C2/521—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits serving for locating conduits; for ventilating, heating or cooling
    • E04C2/525—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits serving for locating conduits; for ventilating, heating or cooling for heating or cooling
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • E04D3/351—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material
    • E04D3/352—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material at least one insulating layer being located between non-insulating layers, e.g. double skin slabs or sheets
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • E04D3/351—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material
    • E04D3/355—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material the insulating layers of adjacent slabs having cooperating edges
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • E04D3/357—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation comprising hollow cavities
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • E04D3/358—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation with at least one of the layers being offset with respect to another layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/60—Solar heat collectors integrated in fixed constructions, e.g. in buildings
    • F24S20/66—Solar heat collectors integrated in fixed constructions, e.g. in buildings in the form of facade constructions, e.g. wall constructions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/60—Solar heat collectors integrated in fixed constructions, e.g. in buildings
    • F24S20/67—Solar heat collectors integrated in fixed constructions, e.g. in buildings in the form of roof constructions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S70/00—Details of absorbing elements
    • F24S70/60—Details of absorbing elements characterised by the structure or construction
    • 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
    • F24S80/60—Thermal insulation
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • 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

Abstract

ABSTRACT A composite insulating panel 17 comprises a profiled external sheet 2 having a plurality of raised crowns 3 of generally trapezoidal form, an inner liner sheet 4 and a body of insulating foam 5 between the sheets '2, 4. The panel 1 has an integral heat collecting means for transfer of heat from one source to another. In one case there are inner conduits 21 through which a heat transfer medium is circulated to extract heat from inside a building and outer conduits 8 for collection of solar heat 9. The panel 17 may be used as part of a heating/cooling/ventilation system.

Description

A composite insulating panel with heat collecting means Introduction With increasing energy costs there is a need for optimizing heat transfer to and from a building.
This invention is directed towards providing an improved insulating panel which will address this issue.
Statements of Invention According to the invention there is provided a composite insulating panel comprising an external sheet, an internal sheet, and insulating foam between the sheets, the external sheet being profiled and having a heat collecting means comprising at least four laterally spaced-apart crowns having an inwardly facing opening, at least some of the recesses definedby the crowns being substantially free of insulating foam to define a pathway for air circulation and a barrier extending across the inwardly facing opening of the foam-free recess, wherein the crowns defining said recesses have an exposed surface comprising an outer face and a pair of side faces which extend fiom the outer face, and wherein said recesses have a cross sectional area of 0.002906m2.
In a preferred embodiment the width of the exposed surface comprising the outer face and the side faces is from 150mm to 200mm.
In one embodiment the width of the exposed surface is preferably from 160mm to 180mm, and about 1'/Omm.
The angle between the outer face and each side face is preferably 115° to 125° and even more preferably from 118° to 123°, and about 121°.
In one embodiment thewidth of the outer face is from 50mm to 60mm. The width of the outer face may be about 55mm.
In one embodiment the width of each side face is from 50mm to 60mm. The width of each side face may be about 57mm.
In one case the panel comprises a roof panel.
In another case the panel comprises a wall panel.
The panel may also be a floor panel.
The invention also provides a heating or cooling system comprising at least one panel of the invention.
The system may comprise duct means for collecting and directing air which is passing through the panel. The system may have air circulating means such as a fan for circulating air to or from the panel or duct.
Brief Description of the Drawings The invention will be more clearly understood from the following description thereof given by way of example only, in which:- Fig. 1 is a cross sectional View of an insulating panel; Fig. 2 is an enlarged View of portion of the panel of Fig. 1; Fig. 3 is a cross sectional view of an insulating panel not according to the present invention; Fig. 4 is a cross sectional view of a further panel; Fig. 5 is a cross sectional view of a composite insulating panel according to the invention; Fig. 5(a) is a cross sectional View of another composite panel; Fig. 5(b) is an enlarged view of a crown of the panel of Fig. 5; Figs. 6 and 7 are cross sectional views illustrating an overlap joint between adjacent panels of Fig. 5; Fig. 8 is a plan cross sectional view of a building comprising a plurality of panels of the invention; Fig. 9 is a cross sectional view of a top corner of the building of Fig. 8; and Fig. 10 is a cross sectional view of another corner of the building of Fig. 8.
Detailed Description Referring to the drawings and initially to Figs. 1 and 2 thereof there is illustrated an insulating panel which in this case is a roof panel I. The roof panel 1 comprises a first sheet which in this case is a profiled external sheet 2 which may be of painted galvanized steel. The profile defines recesses. The profile in this case comprises a plurality of raised crowns 3 which in this case are of generally trapezoidal form and extend longitudinally along the length of the panel. The panel also comprises a second sheet which in this case is an inner metal liner sheet 4. There is insulating foam 5 between the inner and outer sheets 2, 4.
The panel has an integral heat collecting means for transfer of heat from one source to another.
In this case the heat collecting means are provided in the crowns 3 of the external sheet which may be devoid of insulation 5, and according to the present invention are devoid of insulation 5.
Conduits 8 in this case extend through the crowns 3 and a heat transfer medium such as water is circulated through the conduits 8. In this way solar heat illustrated diagrammatically as 9 is transferred and used, for example, to provide hot water for washing and the like. The heat transfer medium may be any suitable fluid such as water, refrigerant or anti-freeze solution. The conduits 8 run through the roof in the external envelope of the building and the medium absorbs solar energy. The warmed medium may be pumped back through the system into the building to _ 4 - provide heat to the building space. Once the medium passes through the building and transfers its energy, it flows back to the roof conduit and the process is repeated in a closed loop.
Referring to Fig. 3 there is illustrated another panel 20 not according to the present invention. In this case the heat collecting means is in the form of conduits 21 through which a heat transfer medium is circulated. The conduits 21 are in this case located adjacent to the internal liner 4.
The system may be used to extract heat 22 rising from the building, especially in environments where equipment and machines give off heat, causing the internal temperature to rise. This system can be used to help keep the building cool in summer and heat it up in winter. In the summertime, a coolant may be circulated. A valving system may be provided to switch from heating to cooling cycles. Extracted heat can be used as described above to heat a supply of hot water.
Referring to Fig. 4 there is illustrated another panel 17 which is similar to the panels of Figs. 1 to 3 and like parts are assigned the same reference numerals. In this case there are inner conduits 2] through which a heat transfer medium is circulated (for example to extract heat from inside a building) and outer conduits 8 for collection of solar heat 9. Such a system may be used as part of a heating/cooling/ventilation system for a building.
Referring to Figs. 5, Sb, 6 and 7 there is illustrated a panel 29 according to the invention which is similar to the panel of Figs. 1 and 2 and like parts are assigned the same reference numerals. In this case the recess is defined by the crowns. Air is circulated through crowns 3 which are not filled with insulating foam and thereby define passageways 19. The circulating air is again heated by solar energy. This hot air is captured and may be blown by small fans into the heating/ventilation/ductwork of the building, again assisting in heating the building. The heated air may also or alternatively be circulated through a heat exchanger for transfer of solar heat to another heat collector. Another panel of this type is illustrated in Fig. 5(a) but with smaller crowns 3.
Air is circulated through the crowns 3 which are not filled with insulating foam. Such panels are usually manufactured by leading the profiled outer sheet 2 along a fiat bed with the recesses defined by the crowns 3 facing upwards. The profiled sheet is led to a lay down area at which ' liquid foam reactants are spread across the sheet using a lay-down poker or the like. As the foam rises the backing sheet is applied over the foam and the sandwich thus formed is then led through _ 5 _ an oven and subsequently cut to length. The manufacturing technology is described in our UK- A-2227712, UK-A-2257086, and UK-A-2325640.
In the panels of the invention foam is excluded from at least some of the recesses defined by the crowns 3. This may be achieved in a number of ways. For example, a seal or tape 25 may be laid across the recesses defined by the crowns 3 prior to foam lay-down. Alternatively a lost core may be inserted into the recesses defined by the crowns 3 and subsequently removed leaving the recesses substantially free of foam.
We have found that the panel of Fig. 5 is particularly suitable for roofs, walls and for floors. The panel has a relatively large exposed surface area and a relatively high large internal void space whilst maintaining structural and insulation properties. The width L of the panel in this case is 1 metre. For optimum thermal efficiency there should be at least 3 and preferably at least 4 crowns 3. Referring especially to Fig. 5(b), each of the crowns 3 defines an area which is devoid of foam. The void area A is preferably at least 0.002m2, most preferably greater than 0.0025m2, and in this case about 0.003m2.
The faces of the crown 3 which are exposed to the external environment comprise an outer face x and two side faces y which diverge inwardly from the outer face x. The angle 0. between the faces x, y is preferably 115° to 125°, most preferably 118° to 123° and in this case about l21°.
The width of the exposed surface of each crown 3 is from 150mm to 200mm, most preferably 160mm to 180mm, and in this case about 170mm. The outer face x has a width Wx of from 50mm to 60mm, in this case about 55mm. Each side facing has a width Wy of from 50mm to mm, in this case about 57mm.
In the panel of Fig. 5 each of the foam-free crowns has a cross sectional area of O.002906m2.
By way of comparison, in the panel of Fig. 5(a) the foam-free crowns each have a cross sectional area of 0.001 603m2.
Theenergy production possible using panels with crowns of this type was calculated using RET screen International Clean Energy Project Analysis software available at www.retscreen.net.
The following assumptions were made: Building Location: North West England Building Size: 10m x 100m x 100m = 10,000m2 floor space South Facing Wall: 100m (W) x 10m (H) Fan Air Speed: 10m / sec Using the panels to construct the south facing wall of the building and circulating air through the foam-free passageways results in the following energy production: Panel of Fig. 5(a) with two crowns: 125,569 kWh per year based on local weather data.
Panel of Fig. 5 with four crowns: 347,647 kWh per year based on local weather data.
Using a panel with enlarged foam-free crowns greatly enhances energy production.
The panels may be used to construct part of or all of the building envelope including the roof, walls and/or floor. One such building is illustrated in Figs. 8 to 10. Each of the walls and the roof of the building comprise a plurality of the panels such as the panels 29 of Fig. 5. Air circulating through the passageways defined by the crown 3 is directed into ducting 30 as shown by the arrows. The flow of air may be controlled using one or more fans 31. The ducting may have a venting system 32 which may be motorized to facilitate ease of operation and control.
The circulating air is heated by solar energy. This hot air is captured and may be passed into the heating/ventilation ductwork of the building, again assisting in heating the building. The heated air may also alternatively be circulated through a heat exchange for transfer of solar heat to another heat collector. The system may be set to take air from the warmest or coldest elevations depending on the internal and external temperatures. The system can be used for heating and/or cooling.
Referring especially to Figs. 9 and 10 suitable insulated cappings 35 may be provided. The building may also have insulated flashings 36.
Many variations on the embodiments described will be readily apparent. Accordingly the i invention is not limited to the embodiments hereinbefore described which may be varied in detail within the scope of the claims.

Claims (1)

1. Claims A composite insulating panel comprising an external sheet, an internal sheet, and insulating foam between the sheets, the external sheet being profiled and having a heat collecting means comprising at least four laterally spaced-apart crowns having an inwardly facing opening, at least some of the recesses defined by the crowns being substantially free of insulating foam to define a pathway for air circulation and a barrier extending across the inwardly facing opening of the foam-free recess, wherein the crowns defining said recesses have an exposed surface comprising an outer face and a pair of side faces which extend from the outer face, and wherein said recesses have a cross sectional area of 0.002906m2. A panel as claimed in claim I wherein the included angle between the outer face and each side face is from 1 15° to 125°. A panel as claimed in claim 1 or 2 wherein the width of the exposed surface comprising the outer face and the side faces is from 150mm to 200mm. A panel as claimed in claim 3 wherein the width of the exposed surface is from 160mm to 180mm. A panel as claimed in claim 4 wherein the width of the exposed surface is 170mm. A panel as claimed in any of claims 2 to 5 wherein the angle between the outer face and each side face is from 118° to 123°. A panel as claimed in claim 6 wherein the angle between the outer face and each side face is 121°. A panel as claimed in any of claims 3 to 7 wherein the width of the outer face is from 50mm to 60mm. A panel as claimed in claim 8 wherein the width of the outer face is about 55mm. A panel as claimed in any of claims 1 to 9 wherein the width of each side face is from 50mm to 60mm. A panel as claimed in claim 10 wherein the width of each side face is 57mm. A panel as claimed in any of claims I to 11 wherein the panel comprises a roof panel. A panel as claimed in any of claims 1 to 11 wherein the panel comprises a wall panel. A panel as claimed in any of claims 1 to 11 wherein the panel comprises a floor panel. A panel substantially as hereinbefore described with reference to
IE2007/0416A 2007-06-12 A composite insulating panel IE85840B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IE2007/0416A IE85840B1 (en) 2007-06-12 A composite insulating panel

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IEIRELAND13/06/20062006/0443
IE20060443 2006-06-13
IE20070145 2007-03-06
IE2007/0416A IE85840B1 (en) 2007-06-12 A composite insulating panel

Publications (2)

Publication Number Publication Date
IE20070416A1 IE20070416A1 (en) 2008-02-06
IE85840B1 true IE85840B1 (en) 2011-08-31

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