WO2011069572A2 - Lanterneau de toit plat pourvu d'un module solaire - Google Patents

Lanterneau de toit plat pourvu d'un module solaire Download PDF

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Publication number
WO2011069572A2
WO2011069572A2 PCT/EP2010/005892 EP2010005892W WO2011069572A2 WO 2011069572 A2 WO2011069572 A2 WO 2011069572A2 EP 2010005892 W EP2010005892 W EP 2010005892W WO 2011069572 A2 WO2011069572 A2 WO 2011069572A2
Authority
WO
WIPO (PCT)
Prior art keywords
flat roof
solar module
roof attachment
attachment according
edge
Prior art date
Application number
PCT/EP2010/005892
Other languages
German (de)
English (en)
Other versions
WO2011069572A3 (fr
Inventor
Hermann Dreesbeimdieke
Original Assignee
Energetik Solartechnologie-Vertriebs Gmbh
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
Application filed by Energetik Solartechnologie-Vertriebs Gmbh filed Critical Energetik Solartechnologie-Vertriebs Gmbh
Publication of WO2011069572A2 publication Critical patent/WO2011069572A2/fr
Publication of WO2011069572A3 publication Critical patent/WO2011069572A3/fr

Links

Classifications

    • 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
    • F24S25/10—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface
    • 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
    • F24S40/80—Accommodating differential expansion of solar collector elements
    • F24S40/85—Arrangements for protecting solar collectors against adverse weather conditions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking

Definitions

  • the invention relates to a flat roof attachment with a solar module and a support wall, which can be set up without further attachment to a flat roof. Furthermore, the invention comprises a flat roof attachment arrangement comprising a plurality of flat roof attachments.
  • a flat roof attachment comprising at least one solar module and a support wall inclined with respect to the solar module, wherein a lower solar module edge and a support wall lower edge are arranged parallel and spaced from each other and are adapted to rest on a flat roof, and wherein a solar module upper edge and a Abstützwandoberkante connected are.
  • the flat roof attachment has according to the invention in the region of the solar module upper edge and / or Abstützwandoberkante at least one breakthrough and the two end faces and the bottom of the flat roof top are open.
  • the flat roof attachment is designed so that neither a loading of the flat roof attachment with ballast is necessary nor an anchoring or screwing of the flat roof attachment on the flat roof is provided.
  • the two end faces are each defined by a surface bordered by a lateral edge the solar module of a lateral edge of the support wall and the flat roof. Between the solar module, support wall and flat roof a downwardly open cavity is provided. The two end faces and the underside of the flat roof attachment are defined as open, but this does not preclude that in this free space any connection or support struts can be provided. This ultimately creates an aerodynamic effect, which leads to the suction of the flat roof attachment on the flat roof.
  • the solar module is preferably a photovoltaic system for generating electricity or a device for heating water. Roofs with a slope of +/- 10 ° with respect to the horizontal are also considered as flat roofs.
  • the opening is formed as a horizontal slot.
  • the slot extends over at least half a module length, in particular over at least 2/3 of the module length.
  • the module length is defined in the horizontal direction.
  • the horizontal slot is 2 cm to 6 cm, in particular 3 cm to 5 cm, in particular 4 cm wide. This geometric design of the slot has proven to be advantageous in the wind tunnel.
  • the upper contour of the aperture viewed in the longitudinal direction of the slot preferably extends at a height to the horizontal.
  • the upper contour of the slot, viewed in the longitudinal direction of the solar module runs parallel to a horizontal plane.
  • the two short sides of the slot preferably extend below this horizontal.
  • the slot is particularly preferably formed by a spacing of the solar module upper edge and the supporting wall upper edge. These two upper edges are then preferably at a horizontal height and form the upper contour of the opening. If wind flows over the edges, a negative pressure (comparable to a sliding roof in the car) arises at the bottom just above the area of the slot. As a result, air is sucked out of the interior, which then to the End surfaces of the flat roof top is sucked back. The air is thus drawn through the system.
  • a plurality of horizontal slots are provided, wherein the plurality of horizontal slots are arranged in alignment in the horizontal direction in order to avoid air turbulence.
  • a slot is preferably provided above each solar module. These slots of the plurality of solar modules are arranged in alignment in the horizontal direction.
  • the opening in the support wall or in the solar module or between the solar module upper edge and the Abstützwandoberkante is arranged.
  • the variant in which the slot between solar module top edge and Abstützwandoberkante is arranged.
  • the two upper edges could, for example, be joined together by relatively short connecting elements in the horizontal direction. The breakthrough then arises between these two connecting elements.
  • the solar module lower edge and the supporting wall lower edge are designed for windproof resting on the flat roof.
  • Windproof here is not necessarily an airtight Aufo to understand. It is sufficient that the gap between the lower edges and the flat roof is formed as small as possible, so that in the first place the wind enters via the end faces and flows out through the opening.
  • the flat roof attachment has a triangular cross-section.
  • a first angle between the solar module and the flat roof is smaller than a second angle between the supporting wall and the flat roof.
  • the support wall is made steeper than the solar module.
  • the first angle between the solar module and the flat roof 15 ° to 35 °, in particular 30 ° to 35 °, in particular 25 °. This angle of attack is optimally aligned to the sunlight and has proven itself in a wind tunnel test.
  • the lower solar module edge and the supporting wall are connected to each other by means of at least one connecting strut.
  • This increases the stability of the flat roof attachment and prevents unfolding of solar module and support wall. Furthermore, it is preferable to feed at least one support strut against the flat roof for supporting the solar module.
  • This support strut is fastened between the solar module upper edge and the solar module lower edge on the solar module and extends downwards in the direction of the flat roof.
  • the underside of the support strut is connected to the connecting strut between Abstützwandunterkante and lower edge of the solar module.
  • the two end faces of the flat roof attachment are completely open and is between the two end faces, with the exception of the optional connecting struts and support struts, a continuously free cavity.
  • the invention further includes a flat roof attachment assembly comprising a plurality of flat roof attachments as just described.
  • the multiple flat roof attachments are thereby joined together at the front, so that a common cavity between the support walls and the solar modules of the multiple flat roof attachments is created.
  • the support wall of this flat roof attachment arrangement can preferably be made in one piece and extend over a plurality of solar modules.
  • the solar modules and / or supporting walls of the multiple flat roof attachments are joined together as windproof as possible on the front side.
  • FIG. 1 shows a flat roof attachment arrangement according to the invention with four flat roof attachments according to the invention according to a first exemplary embodiment
  • FIG. 2 shows a flat roof attachment according to the first exemplary embodiment
  • FIG. 6 shows a detail from FIG. 5,
  • Fig. 7 shows the flat roof top according to the second embodiment in a
  • FIG. 8 shows a first detail from FIG. 7, FIG.
  • Fig. 9 shows a second detail of Fig. 7,
  • Fig. 10 shows the flat roof top according to the second embodiment in plan view of the support wall.
  • FIG. 1 shows a flat roof attachment arrangement 21 with four flat roof attachments 1 that are wind-tightly joined together on the end side.
  • Each of the flat roof attachments 1 consists of a solar module 2 with a module length 19 extending in the horizontal direction and a support wall 3 inclined to the solar module 2. Located between the solar module 2 and the support wall 3 a breakthrough 9, formed as a slot with a slit length 20 extending in the horizontal direction.
  • the flat roof attachment assembly 21 is open. Similarly, a bottom 12 of the flat roof top assembly 21 and thus each flat roof top 1 is open (see Fig. 2).
  • the solar module 2 comprises a lower solar module edge 4 and a solar module upper edge 6.
  • the support wall 3 comprises a support wall lower edge 5 and a support wall upper edge 7.
  • the support wall 3 and the solar module 2 run towards each other toward the top and the solar module upper edge 6 and Abstützwandoberkante 7 are connected to each other by means of connecting elements 16.
  • These connecting elements 16 do not extend over the entire length in the horizontal direction and space the solar module upper edge 6 and the supporting wall upper edge 7, so that the slit-like opening 9 arises between the solar module upper edge 6 and the supporting wall upper edge 7.
  • This slot-like opening 9 extends with its slot length 20 in the horizontal direction.
  • the slot length 20 is 88 cm.
  • the module length is 150 cm.
  • the slot length 20 is thus 6/10 of the module length 19.
  • a width 13 of the opening 9 between the solar module upper edge 6 and the Abstützwandoberkante 7 is 4 cm.
  • the solar module 2 comprises a first floor strip 14.
  • This first floor strip 14 extends continuously in the horizontal direction and forms the lower solar module edge 4.
  • the support wall 3 comprises a second Bottom strip 15, which also extends continuously in the horizontal direction and the Abstützwandunterkante 5 forms.
  • FIG. 3 shows a second exemplary embodiment of the flat roof attachment 1.
  • These flat roof attachments 1 according to the second exemplary embodiment are likewise preferably made, as shown in FIG. 1, into a flat roof attachment arrangement 21 together.
  • Identical or functionally identical components are denoted by the same reference numerals in both embodiments.
  • the second exemplary embodiment comprises at least one connecting strut 17 between the first bottom strip 14 and the second bottom strip 15.
  • Fig. 4 shows a preferred arrangement of a plurality of flat roof top assemblies 21 on a flat roof 8.
  • This preferred arrangement on a flat roof is of course provided with the flat roof attachments 1 of both embodiments.
  • the flat roof attachments 1 and their arrangement on a flat roof 8 are preferably dimensioned as follows: A first angle ⁇ between the flat roof 8 and the solar module 2 is 25 °. A second angle ⁇ between the flat roof 8 and the support wall 3 is 75 °. A height H between the flat roof 8 and the solar module upper edge 6 and Abstützwandoberkante 7 is 50.5 cm.
  • a length L of several flat roof attachments 1 assembled to a flat roof attachment arrangement 21 is 600 cm.
  • a depth T, defined between solar module bottom edge 4 and support wall lower edge 5, is 110 cm.
  • a distance A between two successively erected flat roof top assembly 21, defined by the distance between the two solar module lower edges 4, is 240 cm.
  • a ratio of the depth T to the distance A is 0.4 to 0.6.
  • a ratio of the height H to the distance A is 0.1 to 0.3.
  • the structural design of the flat roof attachment 1 according to the second embodiment is shown in detail.
  • the first and the second embodiment differ essentially by the connecting strut 17. That is, apart from the connecting strut 17, the embodiments described below also apply to the first embodiment.
  • Fig. 5 it can be seen how the slot 9 is formed.
  • bent portions 22 are bent on both sides of the slot. These folds 22 are substantially perpendicular to the support wall 3. Between the two folds 22 remains a web 27 stand. The upper edge of the web 27 forms the AbstNeillwandoberkante 7. Between this Abstützwandoberkante 7 and the solar module upper edge 6 of the slot 9 is formed.
  • FIG. 5 shows the first bottom strip 14 and the second bottom strip 15, formed as extruded profiles. It can be seen on the basis of FIG. 6 how flat roof attachments 1 arranged next to one another are connected to one another on the first floor strip 14.
  • a front holder 27 in particular designed as a front plate, is used. This front holder 27 overlaps with two first floor strips 14 of two flat roof attachments 1 to be arranged next to one another.
  • the front holder 27 is in each case connected to one of the first floor strips 14 via the screw connection 29.
  • the front holder 27 serves for fixing the connecting strut 17.
  • the solar module upper edge 4 is formed by the lower edge of the first bottom bar 14. At this lower edge of the bottom bar 14 is a rubber-like mat. As a result, a largely windproof resting of the solar module attachment 1 on the flat roof 8 is ensured. In addition, damage to the flat roof 8 is avoided.
  • Fig. 7 shows the flat roof top 1 in a side view. Here is easy to see how the Abstützwandoberkante 7 is formed by the web 27.
  • the support wall upper edge 7 is located together with the solar module upper edge 6 at the same horizontal height 24.
  • Fig. 7 shows a module frame height 23. Particularly preferred corresponds to the width 13 of the slot 9 of this module frame height 23rd
  • FIG. 8 shows a detail of the connection between the second floor strip 15 and the supporting wall 3.
  • the supporting wall 3 is fastened to the second floor strip 15 by means of a screw 25.
  • This arrangement of screw 25 and flat nut 26 can also be used for the screw 20 between front holder 27 and first bottom bar 14 and between the solar module 2 and the first bottom bar 14.
  • the front holder 27 can also be used for connecting adjacent second floor strips 15.
  • Fig. 9 shows the fold 22 and the non-folded web 27 on the support wall 3. In the upper area beyond the support wall 3 is connected to the solar module 2 in particular non-positively.
  • FIG. 10 shows a plan view of the support wall 3.
  • two portions of the support wall 3 form the folds 22 on the right and left of the slot 9 and thus on both sides of the web 27.
  • the web 27 stops and there is the slot 9 between the solar module upper edge 6 and the Abstützwandoberkante. 7
  • wind tunnel tests were carried out as follows:
  • a rigid model of a flat roof attachment arrangement 21 in the geometric scale of 1: 30 was used, which was suitable for the measurement of mean and fluctuating wind pressures.
  • the models were designed as measuring modules in such a way that both the wind-induced pressure on the surface (outside) and the wind-induced pressure on the underside (inside), due to the rear ventilation, could be detected simultaneously.
  • the model was set up at various locations on a flat roof model to determine the respective wind load. Between the solar module 2 and the support wall 3 while the gap described according to the invention or the opening 9 was realized.
  • the models were positioned on a building model with a rectangular layout and flat roof construction.
  • the model of the flat roof was dimensioned in the model so that it represents a typical industrial hall height of 10 m.
  • the similarity of the flow and a realistic simulation of the wind flow were achieved with the flow in the wind tunnel.
  • the lifelike simulation of the wind which abstracted a turbulent boundary layer flow over a rough plate, represented in the wind tunnel. This applies both to the shape of the mean wind velocity profile and to the turbulence characteristics of the wind.
  • the velocity fluctuations around the mean value due to the gustiness of the natural wind were modeled.
  • the for various locations of representative atmospheric boundary layer flow conditions ie, the height-dependent distributions of mean wind speeds and wind gusts, were generated by means of roughness elements and vortex generators mounted on the wind tunnel floor at the beginning of the measurement section.
  • the flat roof attachment 1 according to the invention can be installed without ballast and without anchoring on a flat roof.

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  • 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)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

L'invention concerne un lanterneau de toit plat (1) comprenant au moins un module solaire (2) et une paroi de soutien (3) inclinée par rapport au module solaire (2). Un bord inférieur (4) du module solaire et un bord inférieur (5) de la paroi de soutien sont disposés parallèlement l'un à l'autre et à distance l'un de l'autre et sont conçus pour être placés sur un toit plat (8). Un bord supérieur (6) du module solaire et un bord supérieur (7) de la paroi de soutien sont reliés l'un à l'autre. Le lanterneau de toit plat (1) présente dans la zone du bord supérieur (6) du module solaire et/ou du bord supérieur (7) de la paroi de soutien au moins une ouverture (9). Les deux faces frontales (10, 11) et la face inférieure (12) du lanterneau de toit plat (1) sont ouvertes.
PCT/EP2010/005892 2009-12-08 2010-09-27 Lanterneau de toit plat pourvu d'un module solaire WO2011069572A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009057408A DE102009057408A1 (de) 2009-12-08 2009-12-08 Flachdachaufsatz mit Solarmodul
DE102009057408.5 2009-12-08

Publications (2)

Publication Number Publication Date
WO2011069572A2 true WO2011069572A2 (fr) 2011-06-16
WO2011069572A3 WO2011069572A3 (fr) 2011-09-22

Family

ID=43972413

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/005892 WO2011069572A2 (fr) 2009-12-08 2010-09-27 Lanterneau de toit plat pourvu d'un module solaire

Country Status (2)

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DE (1) DE102009057408A1 (fr)
WO (1) WO2011069572A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2746695A1 (fr) * 2012-12-19 2014-06-25 SST Holding GmbH Système photovoltaïque
DE102012025095A1 (de) * 2012-12-20 2014-06-26 CST CumSolTec GmbH Dem Sonnenstand nachführbare Tragvorrichtung für ein Energiegewinnungsmodul

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2544551B1 (fr) * 1983-04-15 1986-07-25 Gallois Montbrun Roger Dispositif capteur d'energie solaire resistant bien au vent
JP2001094134A (ja) * 1999-09-27 2001-04-06 Sekisui Chem Co Ltd 太陽電池用架台
US6495750B1 (en) * 2001-07-10 2002-12-17 Powerlight Corporation Stabilized PV system
EP1306907A1 (fr) * 2001-10-29 2003-05-02 BP Solar Espana, S.A. Système de montage à ballast réduit
DE20120983U1 (de) * 2001-12-27 2002-04-18 Schoenau AG, 12167 Berlin Modulhalter
JP2006261567A (ja) * 2005-03-18 2006-09-28 Sharp Corp 太陽光発電装置
DE202006016382U1 (de) * 2006-10-20 2007-02-15 Hoeft, Duhay, Kempkensteffen GbR (vertretungsberechtigter Gesellschafter: Herr Klaus-Dieter Hoeft, 33332 Gütersloh) Flachdachaufsatz mit Solarmodulen
DE102007045554B3 (de) * 2007-09-24 2009-03-19 Solarworld Ag Stapelbares Flachdach-/Bodengestell für Solarpaneele

Non-Patent Citations (1)

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Title
None

Also Published As

Publication number Publication date
DE102009057408A1 (de) 2011-06-09
WO2011069572A3 (fr) 2011-09-22

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