EP3469268B1 - Verfahren und vorrichtung für energieeffiziente belüftungssysteme für gebäude - Google Patents

Verfahren und vorrichtung für energieeffiziente belüftungssysteme für gebäude Download PDF

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Publication number
EP3469268B1
EP3469268B1 EP17731660.1A EP17731660A EP3469268B1 EP 3469268 B1 EP3469268 B1 EP 3469268B1 EP 17731660 A EP17731660 A EP 17731660A EP 3469268 B1 EP3469268 B1 EP 3469268B1
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EP
European Patent Office
Prior art keywords
air
fire
ventilation system
stairwell
fresh air
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EP17731660.1A
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English (en)
French (fr)
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EP3469268A1 (de
Inventor
Michael Abrahamsson
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Abrahamssons Hantverk-&fastighetsservice AB
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Abrahamssons Hantverk-&fastighetsservice AB
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/12—Hinged dampers
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/241—Operating or controlling mechanisms having mechanical actuators and heat sensitive parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
    • F24F11/35—Responding to malfunctions or emergencies to fire, excessive heat or smoke by closing air passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/144—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with thermoactuators

Definitions

  • the present invention relates to the field of energy efficient ventilation systems for buildings.
  • a fire cell is a room or a group of connected rooms within which a fire may develop but not easily propagate to other fire cells. This means that the structures that surrounds a fire cell, such as walls, framing of joists and so on, must have a certain predetermined resistivity against fire. Examples of fire cells are residential flats, different offices, meeting halls, care departments in hospitals and so on.
  • a safe way is to provide fully separate ventilation systems for each fire cell, but this solution requires a large number of bulky ventilation ducts and expensive air treatment apparatuses. Said solution is thus normally only used for buildings with only a few large fire cells. More typically, the whole or parts of the ventilation system are common for different fire cells.
  • DE3808424 A1 discloses a ventilation system for a building, with fireproof air transfer units arranged in an air outlet channel.
  • an object of the present invention is the provision of improved ventilation systems for retrofitting in existing buildings as well as for installation in new buildings, means and methods for such purposes, being cost-effective in terms of installation cost, yet providing improved energy efficiency and at the same time providing fire safety that is acceptable from a regulatory perspective.
  • passive in the context of the present disclosure indicates the absence of a powered mechanical or electronic device. In particular, it indicates the absence of a fan or similar device for induction of air flow. It indicates that the operation is entirely dependent on the pressure difference between the inlet and the outlet.
  • inlet means the end of an air conduit intended for air intake.
  • outlet means the end of an air conduit intended for the air exiting from an air conduit.
  • the present invention provides an improved ventilation system for retrofitting in existing buildings as well as for installation in new buildings, and discloses a fire proof air transfer unit specifically adapted for use in said system.
  • the air transfer unit of the present disclosure represents a solution to the conflicting requirements of the official building code in Sweden and other countries with regard to air turnover rate demands and demands concerning fire prevention/safety.
  • the air transfer unit solves the conflicting demands thus enabling the more cost-efficient and energy-efficient ventilation system, while satisfying all aspects of the building code.
  • the present invention provides ventilation system for a building, wherein
  • the above system allows for a significant portion of the thermal energy present in the stale air destined to the exhaust (6) to be recovered and reused for heating (or cooling) the fresh air being taken in. Energy savings of 30-40% compared to the conventional solution discussed here can be achieved without any further modifications to the building of the ventilation system.
  • the ventilation system of the invention however allows installation of a geothermal heating with a heat pump to further heat the fresh air, whereby savings up to 80% in energy costs can be achieved.
  • the building (1) can be any building comprising a stairwell (2) and fire cells (3) adjacent to the stairwell (2), but in preferred cases the building (1) is a residential building and the fire cells (3) are apartments having an entrance via the stairwell (2) (See Figs 3 and 4 ).
  • the fresh air intake (5) and the stale air exhaust (6) may be arranged in any conventional manner, such as at the rooftop of the building (1).
  • the means for providing air flow (7) in the ventilation system may be of any conventional type, such as a powered fan.
  • the fresh air flow and the stale air flow may be powered by separate fans.
  • the heat exchanger (8) used in the ventilation system of the invention may be of any type well known in the art to be suitable for the purpose, such as recuperator-type heat exchangers or rotary heat exchangers.
  • Recuperator heat exchangers have an efficiency ranging in 55-90%, depending on design and have the advantage that no contact occurs between the stale air and fresh air, and so the fresh air is not prone to fouling.
  • Rotary heat exchangers can achieve 80% efficiency and has the capability retain air humidity which otherwise can get undesirably low on cold weather conditions. On the other hand, rotary heat exchangers are more prone to fouling.
  • the fire cell (3) may further be provided with passive (i.e. without powered means for inducing air flow) fresh air inlets (12) for providing flow of fresh air from the ambient outside air to the fire cell (3) without passing the heat exchanger (See Fig 4 ).
  • This allows for a proportion of the fresh air to enter as ambient air, creating a subjective sensation of freshness in the fire cell (3) air for the occupants.
  • the fresh air inlets (12) further serve to modulate the under-pressure in the fire cells (3) created by the ventilation system thus increasing comfort.
  • the ventilation duct (9) arranged for transferring stale air from the fire cell (3) to the stale air exhaust (6) via the heat exchanger (8) may be any conventional ventilation duct. In residential spaces, the air is typically removed through outlets in bathrooms and kitchens, since most of the odours and humidity are produced in these spaces.
  • the ventilation duct for transferring stale air from the fire cell (3) to the stale air exhaust (6) is designated 9b.
  • the ventilation duct (9b) of the conventional system does not pass through a heat exchanger.
  • the ventilation duct (10) arranged for transferring fresh air from the fresh air intake (5) to the stairwell (2) via the heat exchanger (8) may be any conventional ventilation duct.
  • said ventilation duct (10) arranged for transferring fresh air comprises individual air outlets (13) arranged at more than one floor levels of the stairwell (2) to provide flow of fresh air at said floor levels. This allows for a more even distribution of fresh air in the stairwell (2) and counteracts the formation of thermal gradients in the stairwell (2).
  • the ventilation duct (10) arranged for transferring fresh air from the fresh air intake (5) to the stairwell (2) via the heat exchanger (8) comprises individual air outlets (13) arranged at each floor level of the stairwell (2) to provide flow of fresh air at each floor level, providing an ideal solution for even distribution of fresh air (See Fig 3 ).
  • the ventilation duct (10) arranged for transferring fresh air from fresh air intake (5) to the stairwell (2) via the heat exchanger (8) may be arranged in a repurposed garbage chute (See Fig 4 ). This allows for the system to be installed in an existing building at a minimum cost, provided that a suitable garbage chute is available.
  • the fire proof air transfer unit (100) arranged as a conduit for transferring air between the stairwell (2) and the fire cell (3) is typically mounted in the wall (4) separating the fire cell (3) (e.g. apartment) from the adjacent stairwell (2) (See Figs 3 and 4 ).
  • the air transfer unit (100) is an air transfer unit according to the second embodiment of the present invention.
  • the air transfer unit (100) is preferably fire proof in the sense that it fulfils the requirements of EI60S classification according to European Standard EN13501-3 to be able to resist fire for at least 60 minutes in a test according to European Standard EN1366-2.
  • the fire proof air transfer unit (100) is essential for the ventilation system of the present invention to comply with current building regulations from fire safety perspective.
  • the air transfer unit (100) comprises a heat-sensitive trigger element (106) configured to trigger an air flow damper (107) to prevent air flow in case of substantially elevated temperature, arranged in the air conduit (105).
  • the damper (107) will (after being triggered by heat) prevent the spread of smoke and fire gases from the fire cell (3) to the stairwell (2).
  • the damper (107) will also reduce spread of smoke and fire into the fire cells (3).
  • the operational flows and pressures in ventilation systems are routinely adjusted by skilled operators to provide air flows satisfying regulatory demands.
  • the adjustments are made both at the system level (fan settings and the like) and at local air terminals, and vary depending on the properties of the building and the applicable regulations.
  • the ventilation system of the present invention is configured such that during operation, the air pressure (p2) in the stairwell (2) is at least 1 Pa higher, preferably 3-12 Pa higher, more preferably 3-8 Pa higher, most preferably 4-6 Pa higher than the ambient atmospheric pressure (p0).
  • the pressure (p2) can be maintained simply by experimentally adjusting the intake flow to an appropriate amount.
  • an optional pressure sensor may be operatively coupled with the intake fan to provide feedback to the fan speed to maintain a set pressure.
  • the elevated pressure ensures that stale air from the fire cells (3) does not contaminate the fresh air in the stairwell (2).
  • the stale air in the fire cells (3) is often contaminated by smells from e.g. lavatories, cooking or smoking, so it is important for comfort to keep the stale air from spreading within the building (1).
  • the stairwell (2) has ambient atmospheric pressure or pressure below the ambient pressure, and the spread of stale air is prevented by having yet lower pressure in the fire cells (3) (e.g. apartments).
  • FIG. 1 a situation is illustrated where a smoker (human figure) in one of the apartments in a building having conventional ventilation has opened a window, leading to air flows as indicated by the arrows within the same apartment. Some of the smoke contaminates the air in the stairwell. Figure 1 also illustrates the situation (in the apartment immediately above the smoker), where cooking is taking place. There is under-pressure created by a boosted ventilation during cooking illustrated by the walls bulging inwards.
  • the ventilation system is preferably configured such that during operation, the air pressure (p1) in the fire cell (3) is 5-15 Pa, more preferably 7-13 Pa, yet more preferably 8-12 Pa, most preferably 9-11 Pa below the pressure (p2) in the stairwell (2), to ensure sufficient airflow (f1) from the stairwell (2) through the air transfer unit (100) to the fire cell (3).
  • the ventilation system is configured such that during operation, the air pressure (p1) in the fire cell (3) is at least 1 Pa, preferably at least 2 Pa, most preferably 4-6 Pa lower than ambient atmospheric (p0). This ensures that moist air from the fire cells (3) does not migrate through any gaps, cracks or holes that are unavoidably present in the outer walls, which would carry the risk of condensation within the structures during cold weather, with potential damage to the building including rotting and mold growth.
  • the fire cell (3) pressure (p1) is preferably less than 10 Pa lower than the ambient atmospheric, as too high pressure differentials could lead to undesirable amount of air leakage.
  • the ventilation system is configured such that during operation, a fresh air flow (f1) corresponding to at least 40%, preferably at least 60%, more preferably at least 70%, most preferably 75-85% of the flow of stale air withdrawn by the ventilation system from the fire cell (3) is provided to the fire cell (3) from the stairwell (2) via the air transfer unit (100).
  • a fresh air flow (f1) corresponding to at least 40%, preferably at least 60%, more preferably at least 70%, most preferably 75-85% of the flow of stale air withdrawn by the ventilation system from the fire cell (3) is provided to the fire cell (3) from the stairwell (2) via the air transfer unit (100).
  • at least 15% of the air provided should enter through other channels, such as windows, air inlets (13) and the like to create a sensation of freshness in the air thus increasing comfort.
  • a fire proof air transfer unit comprising (see Fig 5a ):
  • the inlet and outlet terminals (101,103) may be of any conventional design for air transfer units (100).
  • the conduit (105) may be of any conventional design for ventilation conduits of a size suitable for the application.
  • the length of the conduit is dictated by the thickness of the wall (4) into which the unit is intended to be mounted, preferably 15-50 cm.
  • the conduit (105) may have any shape as long it allows sufficient air flow in the conduit, but is preferably circular having diameter of 10-30 cm or rectangular with a cross-sectional area of 100-400 cm 2 .
  • substantially elevated temperature in this context is meant a temperature indicative of a fire, i.e. exceeding 45°C, preferably 50-80°C, most preferably 50-60°C.
  • the heat sensitive trigger element (106) may be implemented in many ways already known in the art.
  • a preferred implementation is a bimetallic clip (120) that changes shape when the temperature exceeds the designated set-point.
  • the bimetallic clip (120) is set up to hold a pair of fireproof butterfly dampers (121) at an open position.
  • the butterfly dampers (121) are configured to block the airflow once the dampers (121) are released by the shape change in the bimetallic clip brought about by increased temperature.
  • a preferred implementation is a butterfly-configuration illustrated in Figs 5b-5e .
  • the dual butterfly wings of the damper (121) are movably attached to a frame (122) by a hinge mechanism (not shown) comprising a spring (not shown) capable of powering movement of the dual butterfly wings (121) from the open position ( Fig 5c , 5d, 5e, 5f ) to the closed position ( Fig 5c ), once the bimetallic clip (120) is released.
  • the damper (107) is fire proof in the sense that it fulfils the regulatory demands for installation in a ventilation duct between fire cells.
  • the specific manner of determining fire proof ratings varies between jurisdictions and in different applications. It is preferred that the damper fulfils the requirements of EI60S classification according to European Standard EN13501-3 to be able to resist fire for at least 60 minutes in a test according to European Standard EN1366-2. Such components are readily commercially available.
  • An exemplary suitable damper is ABC-SC60 by ABC Ventilations instructer AB, Sweden. Another example is a device designated FDE produced by Halton. Yet another suitable damper is SC+60 from Rf Technologies NV. This type of damper is advantageous in that it works well even in applications where the air pressure differential is low, which is generally the case with a ventilation system of the present invention. It also requires little to no maintenance.
  • the unit (100) may further comprise a device for preventing back flow (108) from the outlet terminal (103) to the inlet terminal (101).
  • the device for preventing back flow (108) from the outlet terminal (103) to the inlet terminal (101) may comprise a unidirectional valve (109).
  • the device (108) comprises a hinged flap that, in absence of air flow or in case of air flow from the outlet (103) to the inlet (101), tends to return to closed position as illustrated by the thatched arrow by force of gravity.
  • Devices for preventing back flow in a ventilation system are well known and found on the market.
  • the device for preventing back flow (108) has the added advantage that spread of stale air from the fire cells (3) to the stairwell (2) is prevented in case of ventilation failure, e.g. fan failure or power outage.
  • the heat-sensitive trigger element (105) may be configured to trigger the air flow damper (107) at temperatures exceeding 45°C, preferably 50°C, more preferably 52°C.
  • the conduit (105) and/or the terminal (101,103) is/are provided with lining (110) comprising a sound dampening material.
  • lining (110) comprising a sound dampening material.
  • the dampening material may be any material commonly used for such purposes, such as rubber or foamed plastics.
  • the air transfer unit (100) may be mounted in a wall (4) between two spaces in a building, preferably a wall (4) between a fire cell (3) and a stairwell (2).
  • the air transfer unit (100) in a ventilation system where fresh air is provided into a fire cell (3) through a stairwell (2), wherein said unit (100) is arranged in a wall (4) between the stairwell (2) and the fire cell (3).
  • the ventilation system may be according to the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
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  • General Engineering & Computer Science (AREA)
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Claims (15)

  1. Belüftungssystem für ein Gebäude (1), wobei
    a. das Gebäude (1) Folgendes umfasst:
    i. ein Treppenhaus (2);
    ii. eine Feuerzelle (3), die durch eine Wand (4) von dem Treppenhaus (2) getrennt ist;
    b. das Belüftungssystem Folgendes umfasst
    iii. einen Frischlufteinlass (5);
    iv. einen Abluftabzug (6);
    v. ein Mittel zum Bereitstellen eines Luftstroms (7) in dem Belüftungssystem;
    vi. einen Wärmetauscher (8), der angeordnet ist, um thermische Energie zwischen frischer Luft, die aus dem Lufteinlass eintritt, und verbrauchter Luft, die zum Abzug austritt, auszutauschen;
    vii. einen Belüftungskanal (9), der angeordnet ist, um verbrauchte Luft von der Feuerzelle (3) über den Wärmetauscher (8) zum Abluftabzug (6) zu übertragen;
    viii. einen Belüftungskanal (10), der angeordnet ist, um Frischluft von dem Frischlufteinlass (5) über den Wärmetauscher (8) in das Treppenhaus (2) zu übertragen;
    ix. eine feuerfeste Luftübertragungseinheit (100), die als eine Leitung zum Übertragen von Luft zwischen dem Treppenhaus (2) und der Feuerzelle (3) angeordnet ist;
    c. wobei das Belüftungssystem so konfiguriert ist, dass während des Betriebs:
    x. der Luftdruck (p2) im Treppenhaus (2) mindestens 1 Pa höher ist als der atmosphärische Umgebungsdruck (p0);
    xi. der Luftdruck (p1) in der Feuerzelle (3) mindestens 1 Pa niedriger ist als der atmosphärische Umgebungsdruck (p0);
    xii. ein Frischluftstrom (f1), der mindestens 40 % des von dem Belüftungssystem aus der Feuerzelle (3) abgezogenen Stroms verbrauchter Luft entspricht, der Feuerzelle (3) aus dem Treppenhaus (2) über die Luftübertragungseinheit (100) bereitgestellt wird.
  2. Belüftungssystem nach Anspruch 1, wobei die feuerfeste Luftübertragungseinheit (100) eine Luftübertragungseinheit (100) ist, die Folgendes umfasst:
    a. Einlassanschluss (101), der eine schützende Entlüftungsabdeckung (102) umfasst;
    b. Auslassanschluss (103), der eine schützende Entlüftungsabdeckung (104) umfasst;
    c. einen Luftkanal (105), der angeordnet ist, um einen Durchgang für strömende Luft von dem Einlassanschluss (101) zu dem Auslassanschluss (103) bereitzustellen;
    wobei die Einheit (100) keine angetriebenen Mittel zum Erzwingen eines Luftstroms umfasst,
    wobei die Einheit (100) ein wärmeempfindliches Auslöseelement (106) umfasst, das konfiguriert ist, um eine feuerfeste Luftströmungsklappe (107) bei Temperaturen von mehr als 45 °C auszulösen, um einen Luftstrom im Falle einer im Wesentlichen erhöhten Temperatur zu verhindern, die in dem Luftkanal (105) angeordnet ist.
  3. Belüftungssystem nach Anspruch 2, wobei die Einheit (100) ferner eine Vorrichtung zum Verhindern eines Rückstroms (108) von dem Auslassanschluss (103) zu dem Einlassanschluss (101) umfasst.
  4. Belüftungssystem nach einem der Ansprüche 2-3, wobei die Vorrichtung zum Verhindern eines Rückstroms (108) von dem Auslassanschluss (103) zu dem Einlassanschluss (101) ein Rückschlagventil (109) umfasst.
  5. Belüftungssystem nach einem der Ansprüche 2-4, wobei der Kanal (105) und/oder die Entlüftungsabdeckungen (102, 104) mit einer Auskleidung (110) bereitgestellt ist/sind, die ein schalldämpfendes Material umfasst.
  6. Belüftungssystem nach einem der Ansprüche 2-5, wobei die Einheit (100) feuerfest in dem Sinne ist, dass sie die Anforderungen der EI60S-Klassifizierung gemäß EN13501-3 erfüllt, um in einem Test gemäß EN1366-2 mindestens 60 Minuten lang einem Feuer standhalten zu können.
  7. Belüftungssystem nach einem der Ansprüche 1-6, wobei die Feuerzelle (3) mit einem passiven Frischlufteinlass (12) bereitgestellt wird, um einen Strom von Frischluft aus der umgebenden Außenluft zu der Feuerzelle (3) bereitzustellen, ohne den Wärmetauscher (8) zu passieren.
  8. Belüftungssystem nach einem der Ansprüche 1-7, wobei der Belüftungskanal (10), der zum Übertragen von Frischluft vom Frischlufteinlass (5) über den Wärmetauscher (8) zum Treppenhaus (2) angeordnet ist, einzelne Luftauslässe (13) umfasst, die in mehr als einem Stockwerk des Treppenhauses (2) bereitgestellt werden, um einen Strom von Frischluft in diesen Stockwerken bereitzustellen.
  9. Belüftungssystem nach einem der Ansprüche 1-8, wobei der Belüftungskanal (10), der zum Übertragen von Frischluft vom Frischlufteinlass (5) über den Wärmetauscher (8) zum Treppenhaus (2) angeordnet ist, einzelne Luftauslässe (13) umfasst, die in jedem Stockwerk des Treppenhauses (2) bereitgestellt werden, um einen Strom von Frischluft in jedem Stockwerk bereitzustellen.
  10. Belüftungssystem nach einem der Ansprüche 1-9, wobei der Belüftungskanal (10), der zum Übertragen von Frischluft vom Frischlufteinlass (5) über den Wärmetauscher (8) zum Treppenhaus (2) angeordnet ist, in einem umfunktionierten Müllschlucker angeordnet ist.
  11. Verwendung einer Luftübertragungseinheit (100), umfassend:
    a. Einlassanschluss (101), der eine schützende Entlüftungsabdeckung (102) umfasst;
    b. Auslassanschluss (103), der eine schützende Entlüftungsabdeckung (104) umfasst;
    c. einen Luftkanal (105), der angeordnet ist, um einen Durchgang für strömende Luft von dem Einlassanschluss (101) zu dem Auslassanschluss (103) bereitzustellen;
    wobei die Einheit (100) keine angetriebenen Mittel zum Erzwingen eines Luftstroms umfasst,
    wobei die Einheit (100) ein wärmeempfindliches Auslöseelement (106) umfasst, das konfiguriert ist, um eine feuerfeste Luftströmungsklappe (107) bei Temperaturen von mehr als 45 °C auszulösen, um einen Luftstrom im Falle einer im Wesentlichen erhöhten Temperatur zu verhindern, die in dem Luftkanal (105) angeordnet ist;
    in einem Belüftungssystem nach einem der vorstehenden Ansprüche.
  12. Verwendung nach Anspruch 11, wobei die Einheit (100) ferner eine Vorrichtung zum Verhindern eines Rückstroms (108) von dem Auslassanschluss (103) zu dem Einlassanschluss (101) umfasst.
  13. Verwendung nach Anspruch 12, wobei die Vorrichtung zum Verhindern eines Rückstroms (108) von dem Auslassanschluss (103) zu dem Einlassanschlulss (101) ein Rückschlagventil (109) umfasst.
  14. Verwendung nach einem der Ansprüche 11-13, wobei der Kanal (105) und/oder die Entlüftungsabdeckungen (102, 104) mit einer Auskleidung (110) bereitgestellt ist/sind, die ein schalldämpfendes Material umfasst.
  15. Verwendung nach einem der Ansprüche 11-14, wobei die Einheit (100) feuerfest in dem Sinne ist, dass sie die Anforderungen der EI60S-Klassifizierung gemäß EN13501-3 erfüllt, um in einem Test gemäß EN1366-2 mindestens 60 Minuten lang einem Feuer standhalten zu können.
EP17731660.1A 2016-06-14 2017-06-09 Verfahren und vorrichtung für energieeffiziente belüftungssysteme für gebäude Active EP3469268B1 (de)

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SE1650832 2016-06-14
PCT/SE2017/050615 WO2017217915A1 (en) 2016-06-14 2017-06-09 Methods and means for energy-efficient ventilation systems for buildings

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EP3469268B1 true EP3469268B1 (de) 2021-10-06

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SE542267C2 (en) * 2018-03-22 2020-03-31 Abrahamssons Hantverk & Fastighetsservice Ab A ventilation system for a building having a smoke evacuation functionality and a method for operating said system

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DE3808424A1 (de) * 1988-03-14 1989-09-28 Maico Elektroapparate Brandschutzvorrichtung fuer einen luefter
DE19533502A1 (de) * 1994-09-01 1996-03-14 Schoettler Lunos Lueftung Brandschutzeinrichtung
EP0824940A3 (de) * 1996-08-23 1999-07-07 Gert Bartholomäus Brandschutzeinrichtung für Lüftungsrohre
DE19919701B4 (de) * 1998-10-22 2004-12-16 Schulte, Günter Rauchschutzeinrichtung für Gebäude
AT410283B (de) * 1999-11-02 2003-03-25 Kamleithner Maly Uta Ing Mag Brandschutz-einrichtung

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EP3469268A1 (de) 2019-04-17
DK3469268T3 (da) 2022-01-03

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