EP1528215A1 - Durchsichtige Fassadenwand zur Verminderung der Sonnenstrahlung - Google Patents

Durchsichtige Fassadenwand zur Verminderung der Sonnenstrahlung Download PDF

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Publication number
EP1528215A1
EP1528215A1 EP03425694A EP03425694A EP1528215A1 EP 1528215 A1 EP1528215 A1 EP 1528215A1 EP 03425694 A EP03425694 A EP 03425694A EP 03425694 A EP03425694 A EP 03425694A EP 1528215 A1 EP1528215 A1 EP 1528215A1
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EP
European Patent Office
Prior art keywords
cavity
wall
cloth
transparent
transparent wall
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP03425694A
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English (en)
French (fr)
Inventor
Roberto Messana
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP03425694A priority Critical patent/EP1528215A1/de
Publication of EP1528215A1 publication Critical patent/EP1528215A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/264—Combinations of lamellar blinds with roller shutters, screen windows, windows, or double panes; Lamellar blinds with special devices
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
    • E06B2007/026—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses with air flow between panes

Definitions

  • the present invention relates to a transparent external wall for buildings which causes a marked abatement of the thermal energy transferred inside the building by solar radiation incident onto the wall itself.
  • transparent external walls for buildings that replace the traditional masonry with windows are well-known, especially in skyscrapers and other large buildings mainly intended for office use.
  • the transparent wall may extend along the whole height of each storey of the building, or only along the upper part of the same; in any case the ratio between transparent portion and opaque portion of the wall is extremely high and completely opposite to that of traditional buildings, where serious problems arise when trying to realise adequate air-conditioning of inner spaces.
  • the infrared radiation component is of course entirely discharged onto the shading means, it is essential to provide for a cooling of the same to avoid the means themselves and the cavity in which they are housed being subject to an excessive temperature increase, which would later cause - albeit with some delay - a corresponding overheating of the inner spaces, due to the radiative and convective effect.
  • the incoming air to the cavity is drawn from inside the building: the steady state temperature in the cavity will therefore tend to approximate the temperature existing in the inner spaces of the building, which in summer are conditioned to reach an average temperature of about 25°C.
  • the temperature of the cavity in the transparent wall is therefore maintained at such a level that a minimal quantity of heat, if any, is transferred to the inner environment.
  • the whole heat flow of the solar radiation incident onto the wall is burdened onto the inner air-conditioning system by drawing such a flow of internal ventilation air which, to achieve the set aim, must be sufficiently large and in any case definitely larger than the flow of primary exchange air actually necessary for correct room ventilation.
  • incoming air to the cavity is drawn instead from outside the building and is therefore at a temperature which, again in the hot season, is much higher than the previous one, averaging for example 35°C.
  • the transparent wall is thus maintained at a steady temperature higher than the internal temperature of the building, so determining an incoming heat flow towards the inner rooms which must be indirectly compensated by the air-conditioning system.
  • the energy balance of this second solution is more advantageous than that of the previous solution, since the load on the air-conditioning system is equal only to the fraction of the incoming solar heat flow to the cavity which was not removed by the ventilation air flow.
  • Another object of the present invention is to provide a ventilated external wall of the type described above in which the temperature can be controlled, in the presence of incident solar radiation, with a reduced load on the air-conditioning system as compared to systems of the known type.
  • a transparent external wall for buildings of the type consisting of at least two flat glass elements defining an inner cavity of the wall in which a ventilation air flow is created, characterised in that an evaporable fluid is further introduced into said cavity.
  • Figg. 1 and 2 show diagrammatically the solutions used so far in the prior art. Only a functional diagram of such solutions is of course detailed in the drawings, i.e. their specific installation and structural features are not highlighted, being well-known to skilled people in the field.
  • Figg. 1-3 hence show diagrammatically an inner space A of a generic building E whose external walls are entirely or mainly formed of transparent glass surfaces.
  • the inner space A is internally delimited by a ceiling S and by a floor P, and delimited to the outside by said transparent glass wall.
  • Said external wall consists of an inner element V I , normally a double glass panel with a sealed inner chamber, and by an outer element V E , between which a cavity C is so formed.
  • a shading device T of the venetian blind type which may be activated and adjusted manually or automatically, for the purpose of shielding against the incoming solar radiation R.
  • a ventilation air flow is formed drawing air from the environment A through the inner input vent I I and releasing said air to the outside through the output vent O, after the air flow has passed through the cavity C cooling the cavity itself and - most importantly - the shading device T therein housed, which is continuously heated by the incoming solar radiation against which it shields.
  • the ventilation air flow inside the cavity C is always of the forced type and can therefore have either of two directions: descending, as shown in the drawing, or ascending.
  • the evaporable fluid is preferably water, and is fed into the cavity C by letting it flow onto as large a surface as possible, so as to maximise the quantity of evaporated fluid per time unit and, consequently, the amount of dissipated heat.
  • such surface consists of a cloth 1 wound around a motorised roller 2 fixed to the ceiling S at the cavity C, and more precisely in the area between the outer element V E and the shading device T.
  • a water distribution system is also provided, which draws the water supplied by a pipe 3 and distributes it, as evenly as possible, over the cloth 1.
  • the special type of water distribution system employed is not critical, as such system need only be capable of distributing water as evenly as possible, so as to avoid preferential water distribution channels and to ensure that the cloth 1 is evenly moist at all times.
  • a first possible embodiment of the water distribution system consists for example of a simple gutter 4 - shown in fig. 4 - fed by pipe 3 and running above the roller 2 along the whole length of the same.
  • the gutter 4 runs in such a way as to have one of its edges slightly depressed and perfectly horizontal, so as to form a continuous water film falling down onto the roller 2 and rapidly and evenly flowing from there to the cloth 1 wetting it entirely.
  • pipe 3 which runs directly, with its end portion, above the roller 2, where such pipe is equipped with a series of jets facing the roller 2, so as to allow an even water distribution over the same.
  • the end portion of the pipe 3 is evenly bored and represents itself the axial support onto which the roller 2 is mounted, which is thus evenly wetted from inside rather than from outside as in the previous embodiments.
  • the material and the structure of the cloth 1 are chosen so as to ensure instead a high degree of transparency of the cloth itself to light radiation, which is thus not subject to any appreciable attenuation.
  • the presence of the cloth 1 allows instead to obtain a diffusion effect of the incoming light radiation, improving the distribution efficiency thereof.
  • suitable water flow control means in pipe 3 are simultaneously activated, which are adjusted - by sensors and devices known per se - so that the incoming water flow is at least sufficient to keep the cloth 1 constantly moist across its whole surface.
  • the structure of the cloth 1 must be such as to guarantee a swift diffusion of the water across the cloth and a quantity of withheld water, per cloth surface unit, sufficient to achieve the object of the invention.
  • a preferred cloth type which meets the above described requirements of transparency to light radiation and of even distribution and good water retention properties, is a synthetic transparent fibre fabric, normally used in serigraphy.
  • the invention of course is not limited to this type of cloth, any other material capable of performing as described above being acceptable.
  • fig. 3 shows the most recent solution, according to which air circulation is performed with external air introduced into the cavity C through the input vent I E and released outside through the vent O.
  • the water therein contained begins to evaporate. Thanks to the constant air circulation maintained inside the cavity C, the water vapour so formed is immediately removed, allowing evaporation to continue. Given that evaporation is an endothermic phenomenon, the equilibrium limit temperature of the system is no more, as in the prior art, the dry-bulb temperature (T S ) of the ventilation air, but rather the wet-bulb temperature (T U ) of the same ventilation air.
  • UR relative humidity value
  • the water employed to wet the cloth 1 must preferably be demineralised water - so as to avoid formation of limescale deposits on the cloth itself - easily obtained through a suitable water softener.
  • the water used to wet the cloth 1 is preferably condensation water from the air processing units of the building itself.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Building Environments (AREA)
EP03425694A 2003-10-28 2003-10-28 Durchsichtige Fassadenwand zur Verminderung der Sonnenstrahlung Withdrawn EP1528215A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03425694A EP1528215A1 (de) 2003-10-28 2003-10-28 Durchsichtige Fassadenwand zur Verminderung der Sonnenstrahlung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03425694A EP1528215A1 (de) 2003-10-28 2003-10-28 Durchsichtige Fassadenwand zur Verminderung der Sonnenstrahlung

Publications (1)

Publication Number Publication Date
EP1528215A1 true EP1528215A1 (de) 2005-05-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03425694A Withdrawn EP1528215A1 (de) 2003-10-28 2003-10-28 Durchsichtige Fassadenwand zur Verminderung der Sonnenstrahlung

Country Status (1)

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EP (1) EP1528215A1 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102979227A (zh) * 2012-11-30 2013-03-20 上海玻机智能幕墙股份有限公司 一种智能遮阳幕墙系统
CN103343660A (zh) * 2013-06-28 2013-10-09 上海玻机智能幕墙股份有限公司 既有玻璃幕墙内置电动百叶系统
CN103758262A (zh) * 2014-01-22 2014-04-30 内蒙古科技大学 一种节能型玻璃幕墙及其建造方法
CN104879863A (zh) * 2015-02-18 2015-09-02 西南科技大学 一种太阳墙自然通风的室内空气调节系统及空气调节方法
CN106436992A (zh) * 2016-10-13 2017-02-22 芜湖浩权建筑工程有限公司 一种节能环保隔音的双层建筑玻璃幕墙
CN106499071A (zh) * 2016-10-13 2017-03-15 芜湖浩权建筑工程有限公司 一种节能环保的隔热隔音建筑幕墙
CN109579184A (zh) * 2018-12-06 2019-04-05 中建五局第三建设有限公司 一种蒸发冷却与机械通风耦合集成系统
CN110409706A (zh) * 2018-04-28 2019-11-05 黄郁珺 一种光电面板型幕墙单元板
CN112815451A (zh) * 2020-12-31 2021-05-18 斯卡特(北京)新材料技术有限公司 一种窗式净化系统
FR3104189A1 (fr) * 2019-12-09 2021-06-11 Marc DOCO Dispositif de protection solaire à volet évaporateur
CN113187133A (zh) * 2021-05-13 2021-07-30 成都中恒瑞达铝幕墙装饰材料有限公司 一种新型铝单板
CN113958025A (zh) * 2021-10-27 2022-01-21 张群 一种被动式超低能耗建筑用复合墙体

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024726A (en) * 1975-04-11 1977-05-24 Enercon West Solar heat trap for building windows
DE3026635A1 (de) * 1978-02-27 1982-02-11 Schmidt Reuter Ingenieurgesellschaft mbH & Co KG, 5000 Köln Luftfuehrende fassade
US4577619A (en) * 1983-09-08 1986-03-25 Howe Jr William C Energy efficient window and skylight assemblies
EP0481217A2 (de) * 1990-10-13 1992-04-22 ALCO-Systeme GmbH Bauwerk
WO1999051921A1 (en) * 1998-04-07 1999-10-14 Verosol Fabrics B.V. Pane structure
US6178966B1 (en) * 1998-04-16 2001-01-30 John E. Breshears Heat and moisture exchange apparatus for architectural applications

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024726A (en) * 1975-04-11 1977-05-24 Enercon West Solar heat trap for building windows
DE3026635A1 (de) * 1978-02-27 1982-02-11 Schmidt Reuter Ingenieurgesellschaft mbH & Co KG, 5000 Köln Luftfuehrende fassade
US4577619A (en) * 1983-09-08 1986-03-25 Howe Jr William C Energy efficient window and skylight assemblies
EP0481217A2 (de) * 1990-10-13 1992-04-22 ALCO-Systeme GmbH Bauwerk
WO1999051921A1 (en) * 1998-04-07 1999-10-14 Verosol Fabrics B.V. Pane structure
US6178966B1 (en) * 1998-04-16 2001-01-30 John E. Breshears Heat and moisture exchange apparatus for architectural applications

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102979227A (zh) * 2012-11-30 2013-03-20 上海玻机智能幕墙股份有限公司 一种智能遮阳幕墙系统
CN103343660A (zh) * 2013-06-28 2013-10-09 上海玻机智能幕墙股份有限公司 既有玻璃幕墙内置电动百叶系统
CN103758262A (zh) * 2014-01-22 2014-04-30 内蒙古科技大学 一种节能型玻璃幕墙及其建造方法
CN103758262B (zh) * 2014-01-22 2016-03-16 内蒙古科技大学 一种节能型玻璃幕墙及其建造方法
CN104879863A (zh) * 2015-02-18 2015-09-02 西南科技大学 一种太阳墙自然通风的室内空气调节系统及空气调节方法
CN104879863B (zh) * 2015-02-18 2018-03-20 西南科技大学 一种太阳墙自然通风的室内空气调节系统及空气调节方法
CN106499071A (zh) * 2016-10-13 2017-03-15 芜湖浩权建筑工程有限公司 一种节能环保的隔热隔音建筑幕墙
CN106436992A (zh) * 2016-10-13 2017-02-22 芜湖浩权建筑工程有限公司 一种节能环保隔音的双层建筑玻璃幕墙
CN110409706A (zh) * 2018-04-28 2019-11-05 黄郁珺 一种光电面板型幕墙单元板
CN109579184A (zh) * 2018-12-06 2019-04-05 中建五局第三建设有限公司 一种蒸发冷却与机械通风耦合集成系统
FR3104189A1 (fr) * 2019-12-09 2021-06-11 Marc DOCO Dispositif de protection solaire à volet évaporateur
CN112815451A (zh) * 2020-12-31 2021-05-18 斯卡特(北京)新材料技术有限公司 一种窗式净化系统
CN113187133A (zh) * 2021-05-13 2021-07-30 成都中恒瑞达铝幕墙装饰材料有限公司 一种新型铝单板
CN113958025A (zh) * 2021-10-27 2022-01-21 张群 一种被动式超低能耗建筑用复合墙体
CN113958025B (zh) * 2021-10-27 2022-12-09 张群 一种被动式超低能耗建筑用复合墙体

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