EP0996794A1 - Room air conditionning method and use of an air-conditioned ceiling in such a method - Google Patents

Room air conditionning method and use of an air-conditioned ceiling in such a method

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Publication number
EP0996794A1
EP0996794A1 EP98925594A EP98925594A EP0996794A1 EP 0996794 A1 EP0996794 A1 EP 0996794A1 EP 98925594 A EP98925594 A EP 98925594A EP 98925594 A EP98925594 A EP 98925594A EP 0996794 A1 EP0996794 A1 EP 0996794A1
Authority
EP
European Patent Office
Prior art keywords
air
room
ceiling
air conditioning
acoustic
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.)
Granted
Application number
EP98925594A
Other languages
German (de)
French (fr)
Other versions
EP0996794B1 (en
EP0996794B2 (en
Inventor
Frank H. Wilhelmi
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.)
Grundstuecksentwicklungsgesellschaft Lahnau & GmbH
Original Assignee
Wilhelmi Werke AG
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
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Application filed by Wilhelmi Werke AG filed Critical Wilhelmi Werke AG
Publication of EP0996794A1 publication Critical patent/EP0996794A1/en
Publication of EP0996794B1 publication Critical patent/EP0996794B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/02—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation having means for ventilation or vapour discharge
    • 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
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/068—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as perforated walls, ceilings or floors
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0089—Systems using radiation from walls or panels
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/242—Sound-absorbing material

Abstract

A single flow of incoming air through a closed sound-absorbent air-conditioned ceiling is used for air conditioning a room. The flow of incoming air can be temperature controlled. Part of the flow of heat associated with the flow of incoming air is conveyed into the room in the form of heat radiation emitted from the air-conditioned ceiling. The air-conditioned ceiling is manufactured from materials with a high level of heat conductivity for this purpose.

Description

Verfahren zur Raumklimatisierung und Klimadecke für ein solches Verfahren Process for air conditioning and ceiling for such a process
Beschreibung:Description:
Die Erfindung betrifft ein Verfahren zur Raumklimatisierung mittels einer Klimadecke aus von der Raumdecke beabstandet angeordneten Akustikplatten, die aus einem luftdurchlässigen Werkstoff bestehen, der mit einer porösen Abdeckung versehen ist.The invention relates to a method for air conditioning by means of an air-conditioning ceiling made of acoustic panels spaced apart from the room ceiling and made of an air-permeable material which is provided with a porous cover.
Aus der Patentanmeldung EP 0 756 138 A2 ist ein flächiges Kühl- und Heizelement bekannt, das zur Ausbildung einer Klimadecke dient, wobei oberhalb der Klimadecke ein Teilstrom der Zuluft erzeugt wird und durch die porösen Akustikplatten der Klimadecke hindurch in den Raum darunter gelangt. Ein weiterer Teilstrom wird aus der Außenluft angesaugt und durch eine Raumwand direkt in den Raum einge- blasen. Es ist deshalb nicht erforderlich, den Hohlraum über der Klimadecke gegenüber dem Raum darunter hermetisch abzudichten, zumal auch der Teilstrom durch die Klimadecke hindurch von einem weiteren Teilstrom ergänzt werden kann, der durch eine größere Öffnung in der Klimadecke ohne we- sentlichen Druckabfall in den Raum gelangt. Die Temperie rung des Raumes erfolgt im wesentlichen durch Konvektion und erfordert einen beträchtlichen Steueraufwand.A flat cooling and heating element is known from patent application EP 0 756 138 A2, which is used to form an air conditioning ceiling, a partial flow of the supply air being generated above the air conditioning ceiling and passing through the porous acoustic panels of the air conditioning ceiling into the room below. Another partial flow is drawn in from the outside air and blown directly into the room through a room wall. It is therefore not necessary to hermetically seal the cavity above the air conditioning ceiling from the room below, especially since the partial flow through the air conditioning ceiling can also be supplemented by a further partial flow, which can be achieved through a larger opening in the air conditioning ceiling without any significant pressure drop into the room reached. The temperament tion of the room takes place essentially by convection and requires a considerable amount of tax.
Aus der Patentanmeldung NL 8502079 A ist auch bereits eine geschlossene, in einen Raum eingehängte Zwischendecke be- kannt, die einen an der Raumdecke angesiedelten Hohlraum abteilt, über den die Zuluftzufuhr durch die Zwischendecke hindurch erfolgt, während die Abluft aus dem Raum durch Auslässe in dem Raumboden abgesaugt wird. Eine Temperierung des Raumes ist hierbei aber nicht vorgesehen, und die Zwi- schendecke besteht auch nicht aus lärm- und wärmedämmend wirkenden Akustikplatten, so daß die Nachrüstung mit einem Wärmetauscher nicht zu einer befriedigenden Raumtemperierung und -Schalldämmung führen kann.From the patent application NL 8502079 A, a closed suspended ceiling suspended in a room is also known, which divides a cavity located on the ceiling, via which the supply air is supplied through the suspended ceiling, while the exhaust air from the room through outlets in the Is sucked off. Temperature control of the room is not provided here, however, and the false ceiling does not consist of acoustic and noise-absorbing acoustic panels, so that retrofitting with a heat exchanger cannot lead to satisfactory room temperature control and sound insulation.
Die Erfindung hat sich deshalb die Aufgabe gestellt, eine Verfahren zur Raumklimatisierung mittels einer Klimadecke so auszubilden, daß sie mit geringem Aufwand für die Steuerung und Regelung erfolgen kann und dabei aber trotzdem ein angenehmes, zugfreies Raumklima schafft und dabei die Vorteile einer schall- und wärmedämmenden Ausführung beibe- hält.The invention has therefore set itself the task of designing a method for air conditioning by means of a climate ceiling so that it can be done with little effort for the control and regulation and still creates a pleasant, draft-free indoor climate and thereby the advantages of a sound and heat insulation Execution retained.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß die Akustikplatten so angeordnet werden, daß zwischen der Klimadecke und der Raumdecke ein Hohlraum ausgebildet wird, der mit dem Raum durch die Klimadecke strömungsverbunden und im übrigen zu dem Raum hin abgedichtet ist, daß dem Raum die Zuluft vollständig oder zumindest überwiegend über die Klimadecke zugeführt wird, daß weiterhin der Hohlraum mit temperierter Druckluft beaufschlagt und deren Druck so gewählt wird, daß durch die Akustikplatten zum Raum hin eine laminare Luftströmung ohne eine in dem Raum auf- tretende Zugerscheinung erzeugt wird, daß ferner die Akustikplatte und ihre Abdeckung so gewählt werden, daß ein Teil des über die Akustikplatte verlaufenden Wärmetransportes in den Raum als Wärmestrahlung erfolgt und daß schließlich die Abluft aus einem von der Klimadecke beab- standeten und/oder gegen die von dieser ausgehenden Wärmestrahlung abgeschotteten Raumbereich abgeführt wird.According to the invention the object is achieved in that the acoustic panels are arranged in such a way that a cavity is formed between the air-conditioning ceiling and the room ceiling, which is flow-connected to the room through the air-conditioning ceiling and is otherwise sealed off from the room in such a way that the room has the supply air completely or at least predominantly supplied via the air-conditioning ceiling, so that the cavity is further acted upon by temperature-controlled compressed air and the pressure of which is selected such that a laminar air flow through the acoustic panels towards the room without any air flowing into the room. occurring draft is generated that the acoustic panel and its cover are chosen so that part of the heat transport via the acoustic panel into the room takes place as heat radiation and that finally the exhaust air from a spaced from the climate ceiling and / or against that of this outgoing heat radiation is removed from the enclosed area.
Bei einem auf diese Weise klimatisierten Raum besteht nicht die Gefahr, daß durch direkt eingeleitete Außenluft Zuger- scheinungen oder eine Taupunkt-Unterschreitung eintreten; andererseits kann eine von der Wärmestrahlung abgeschirmte Abführung der Raumluft für einen steten Luftwechsel ohne wesentliche Wärmeverluste sorgen. Ganz wesentlich ist es, daß die Zuluft vor ihrem Eintritt in den Raum in Wärmeaus- tausch mit den Akustikplatten tritt, so daß diese eine Wärmestrahlung abgeben und der Raum in kurzer Zeit temperierbar ist. In einfacher Weise kann ein solcher Effekt mit einer Klimadecke erreicht werden, bei der Werkstoff und Ausbildung der Akustikplatten und ihrer Abdeckung mit einer hohen Wärmeleitzahl und so gewählt werden, daß der Anteil der Wärmestrahlung an dem Wärmetransport in den Raum zwischen 20 und 80 % betragen.In a room that is air-conditioned in this way, there is no risk of drafts or falling below the dew point as a result of directly introduced outside air; on the other hand, a removal of the ambient air shielded from the heat radiation can ensure a constant air change without significant heat losses. It is very important that the supply air enters into heat exchange with the acoustic panels before they enter the room, so that they emit heat radiation and the room can be tempered in a short time. Such an effect can be achieved in a simple manner with a climatic ceiling, in which the material and design of the acoustic panels and their covering are chosen with a high coefficient of thermal conductivity and so that the proportion of heat radiation in the heat transport into the room is between 20 and 80%.
Es ist zweckmäßig, wenn der Druck der Druckluft und die Akustikplatten so gewählt werden, daß zwischen dem Hohlraum und dem Raum eine Druckdifferenz von höchstens 20 Pa auftritt. Damit ist gewährleistet, daß einesteils eine ausreichende Luftwechselzahl erreicht wird, ohne daß andererseits Zugerscheinungen auftreten, wobei Verwirbelungen unmittelbar an der Klimadecke vermieden werden können, wenn die la- minare Luftströmung mit höchstens 0,1 m/s aus der Klima decke austritt. In dem Raum selbst soll die Luftströmung 0,25 m/s nicht überschreiten.It is expedient if the pressure of the compressed air and the acoustic panels are chosen so that a pressure difference of at most 20 Pa occurs between the cavity and the room. This ensures that, on the one hand, a sufficient number of air changes is achieved without, on the other hand, drafts, whereby turbulence can be avoided directly on the air conditioning ceiling if the laminar air flow from the air at a maximum of 0.1 m / s ceiling emerges. In the room itself, the air flow should not exceed 0.25 m / s.
Insgesamt erfüllt eine solche Klimadecke hohe Anforderungen an Behaglichkeit und Gesundheit in dem klimatisierten Raum bei geringen Anforderungen an den baulichen Aufwand und die Unterhaltung der Anlage, wozu besonders beiträgt, daß der Hohlraum frei von Einbauten ist und keine Taupunktunter- schreitung durch Außenluftzufuhr zu befürchten ist. Das Verfahren schafft eine Anordnung, bei der die Aufgaben ei- ner Klimadecke und eines Luftsystems gleichzeitig wahrgenommen werden, so daß auch die Anfertigung und der Einbau außerordentlich wirtschaftlich erfolgen können.All in all, such a climate ceiling meets high requirements for comfort and health in the air-conditioned room with low demands on the construction effort and the maintenance of the system, which contributes particularly to the fact that the cavity is free of internals and there is no fear that the air supply will not drop below the dew point. The method creates an arrangement in which the tasks of a climate ceiling and an air system are performed simultaneously, so that the manufacture and installation can also be carried out extremely economically.
Die Erfindung wird nachstehend an Hand der Zeichnung an einem Ausführungsbeispiel näher erläutert. Die einzige Figur zeigt einen schematischen Schnitt durch einen Raum mit einer nach dem erfindungsgemäßen Verfahren arbeitenden Klimatisierung.The invention is explained below with reference to the drawing using an exemplary embodiment. The single figure shows a schematic section through a room with an air conditioning system operating according to the method of the invention.
In einen zu klimatisierenden Raum 1 ist mit Abstand zu seiner Raumdecke 2 eine Klimadecke 3 in geeigneter fachübli- eher, hier nicht näher angedeuteter Weise eingehängt. Die Klimadecke 3 besteht aus einzelnen, porösen Akustikplatten 4, die mit schmalen und abgedichteten Stoßfugen 5 aneinander und an den umgebenden Raumwänden 6 liegen. Zumindest auf ihren dem Raum 1 zugewandten Seiten sind die Akustik- platten 4 jeweils mit einer Abdeckung 7 belegt, die ebenfalls porös ausgebildet ist, so daß Schallwellen in die Akustikplatten 4 eindringen und hier absorbiert werden können. Zwischen der Klimadecke 3 und der Raumdecke 2 ist demzufolge ein Hohlraum 8 gebildet und von dem Raum 1 relativ hermetisch abgeteilt. An dem über einem Raumboden 9 aufgebauten Raum 1 mit seinen Raumwänden 6 sind symbolisch Öffnungen - je ein Fenster 11 und eine Tür 12 - angedeutet, die, auch in geschlossenem Zustand, zu einem Luftwechsel des Raumes 1 herangezogen werden können. Mindestens ein Durchlaß 13 für die Abluft 14 kann darüberhinaus vorgesehen sein in einer weiter unten beschriebenen speziellen Anordnung.In a room 1 to be air-conditioned, a climate ceiling 3 is suspended at a distance from its room ceiling 2 in a suitable, conventional manner, which is not indicated here. The air-conditioning ceiling 3 consists of individual, porous acoustic panels 4, which lie against one another and on the surrounding room walls 6 with narrow and sealed butt joints 5. At least on their sides facing the room 1, the acoustic panels 4 are each covered with a cover 7, which is also porous, so that sound waves penetrate into the acoustic panels 4 and can be absorbed here. Accordingly, a cavity 8 is formed between the air conditioning ceiling 3 and the ceiling 2 and is relatively hermetically partitioned from the space 1. On the room 1 built up over a room floor 9 with its room walls 6, symbolically openings - each a window 11 and a door 12 - are indicated, which, even in the closed state, can be used to change the air in the room 1. At least one passage 13 for the exhaust air 14 can also be provided in a special arrangement described below.
Der Hohlraum 8 steht über mindestens einen Durchlaß 15 mit einer Druckluftquelle in Verbindung, die für die Bereit- Stellung der erforderlichen Zuluft 16 sorgt, welche durch die Akustikplatten 4 und deren Abdeckung 7 als homogene laminare Luftströmung 17 in den Raum 1 gespült wird. Die Druckdifferenz über die Klimadecke 3 - maximal 20 Pa - wird so gewählt, daß die Luftströmung 17 mit höchstens 0,1 m/s aus den Abdeckungen 7 austritt.The cavity 8 is connected via at least one passage 15 to a compressed air source, which ensures the provision of the required supply air 16, which is flushed into the room 1 through the acoustic panels 4 and their cover 7 as a homogeneous laminar air flow 17. The pressure difference across the climatic ceiling 3 - maximum 20 Pa - is selected so that the air flow 17 exits the covers 7 at a maximum of 0.1 m / s.
Die mit der Luftströmung 17 verbundene Wärmeströmung bleibt nur teilweise an die Luftströmung 17 gekoppelt. Wegen der speziellen Ausführung der Akustikplatten 4 und deren Abdeckung 7 jeweils aus einem Werkstoff hoher Wärmeleitfä- higkeit wird ein Teil der Wärmeströmung aus der Luftströmung ausgeschieden und über die Akustikplatten 4 und deren Abdeckungen 7 teilweise durch Wärmeübergang, zumeist aber durch (trägheitslose) Wärmestrahlung an den Raum 1 abgegeben, der auf diese Weise rasch temperierbar ist. Der Durch- laß 13 für die Abluft 14 ist deshalb weit entfernt von der Klimadecke 3 angelegt; gegebenenfalls ist der den Durchlaß 13 enthaltende Raumbereich 10 gegen die aus der Klimadecke 3 austretende Wärmestrahlung abgeschirmt. B ez u g s z e i c h e n_:The heat flow associated with the air flow 17 remains only partially coupled to the air flow 17. Because of the special design of the acoustic panels 4 and their covers 7, each made of a material with high thermal conductivity, part of the heat flow is separated from the air flow and partly via the acoustic panels 4 and their covers 7 by heat transfer, but mostly by (inertia) heat radiation to the Delivered room 1, which can be quickly tempered in this way. The passage 13 for the exhaust air 14 is therefore located far away from the air conditioning ceiling 3; optionally, the area 10 containing the passage 13 is shielded from the thermal radiation emerging from the air conditioning ceiling 3. Reference sign:
1 Raum1 room
2 Raumdecke2 ceiling
3 Klimadecke3 climate ceiling
4 Akustikplatte4 acoustic panel
5 Stoßfuge5 butt joint
6 Raumwand6 room wall
7 Abdeckung7 cover
8 Hohlraum8 cavity
9 Raumboden9 room floor
10 Raumbereich10 room area
11 Fenster11 windows
12 Tür12 door
13 Durchlaß13 passage
14 Abluft14 exhaust air
15 Durchlaß15 passage
16 Zuluft16 supply air
17 Luftströmung 17 air flow

Claims

Ansprüche : Expectations :
1. Verfahren zur Raumklimatisierung mittels einer Klimadecke (3) aus von der Raumdecke (2) beabstandet angeordneten Akustikplatten (4), die aus einem luftdurchlässigen Werkstoff bestehen, der mit einer porösen Abdeckung (7) versehen ist,1. A method for air conditioning by means of an air conditioning ceiling (3) from acoustic panels (4) which are spaced from the ceiling (2) and which consist of an air-permeable material which is provided with a porous cover (7),
dadurch gekennzeichnet , daßcharacterized in that
(a) die Akustikplatten (4) so angeordnet werden, daß zwischen der Klimadecke (3) und der Raumdecke (2) ein Hohlraum (8) ausgebildet wird, der mit dem Raum (1) durch die Klimadecke (3) strömungsverbunden und im übrigen zu dem Raum (1) hin abgedichtet ist,(A) the acoustic panels (4) are arranged so that a cavity (8) is formed between the air conditioning ceiling (3) and the room ceiling (2), which is fluidly connected to the room (1) through the air conditioning ceiling (3) and otherwise sealed to the room (1),
(b) dem Raum (1) die Zuluft (16) vollständig oder zumindest überwiegend über die Klimadecke (3) zugeführt wird,(b) the supply air (16) is supplied to the room (1) completely or at least predominantly via the air conditioning ceiling (3),
(c) der Hohlraum (8) mit temperierter Druckluft beaufschlagt und deren Druck so gewählt wird, daß durch die Akustikplatten (4) zum Raum (1) hin eine laminare Luftströmung (17) ohne eine in dem Raum (1) auftretende Zugerscheinung erzeugt wird,(c) the cavity (8) is pressurized with temperature-controlled compressed air and its pressure is selected so that a laminar air flow (17) is generated by the acoustic panels (4) towards the room (1) without any drafts occurring in the room (1) ,
(d) die Akustikplatte (4) und ihre Abdeckung (7) so gewählt werden, daß ein Teil des über die Akustikplatte (4) verlaufenden Wärmetransportes in den Raum (1) als Wärmestrahlung erfolgt und(D) the acoustic panel (4) and its cover (7) are chosen so that part of the heat transfer via the acoustic panel (4) into the room (1) takes place as heat radiation and
(e) die Abluft (14) aus einem von der Klimadecke (3) beab- standeten und/oder gegen die von dieser ausgehenden Wärmestrahlung abgeschotteten Raumbereich (10) abgeführt wird. (e) the exhaust air (14) is discharged from a room area (10) spaced apart from the air-conditioning ceiling (3) and / or against the heat radiation emanating from it.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die poröse Abdeckung auf der Rück- und/oder Vorderseite des luftdurchlässigen Werkstoffes aufgebracht ist.2. The method according to claim 1, characterized in that the porous cover is applied to the back and / or front of the air-permeable material.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekenn- zeichnet , _dajß der Druck der Druckluft und die Akustik¬ platten (4) so gewählt werden, daß zwischen dem Hohlraum (8) und dem Raum (1) eine Druckdifferenz von höchstens 20 Pa auftritt.3. The method according to claim 1 or 2, characterized _dajß the pressure of the compressed air and the acoustic ¬ plates (4) are chosen so that between the cavity (8) and the room (1) a pressure difference of at most 20 Pa occurs.
4. Verfahren nach Anspruch 1 bis 3, dadurch gekenn- zeichnet, daj3 die laminare Luftströmung (17) mit höchstens4. The method according to claim 1 to 3, characterized in that the laminar air flow (17) with at most
0,1 m/s aus der Klimadecke (3) austritt.0.1 m / s emerges from the air conditioning ceiling (3).
5. Verfahren nach Anspruch 1 bis 4, dadurch gekenn- z_ei^hne_ti__daß die Luftströmung (17) in dem Raum (1) 0,25 m/s nicht überschreitet.5. The method according to claim 1 to 4, characterized gekenn- z_ei ^ hne_t i __ that the air flow (17) in the room (1) does not exceed 0.25 m / s.
6. Klimadecke für ein Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet , daß Werkstoff und Ausbildung der Akustikplatten (4) und ihrer Abdeckung (7) mit einer hohen Wärmeleitzahl und so gewählt werden, daß der Anteil der Wärmestrahlung an dem Wärmetransport in den Raum (1) zwischen 20 und 80 % betragen. 6. A climate blanket for a method according to one of claims 1 to 5, characterized in that the material and design of the acoustic panels (4) and their cover (7) with a high coefficient of thermal conductivity and are chosen so that the proportion of heat radiation in the heat transport in the space (1) is between 20 and 80%.
EP98925594A 1997-07-15 1998-05-13 Room air conditionning method and use of an air-conditioned ceiling in such a method Expired - Lifetime EP0996794B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19730180 1997-07-15
DE19730180A DE19730180C2 (en) 1997-07-15 1997-07-15 Process for air conditioning and ceiling for such a process
PCT/EP1998/002813 WO1999004111A1 (en) 1997-07-15 1998-05-13 Room air conditioning method and an air-conditionined ceiling for a method of this type

Publications (3)

Publication Number Publication Date
EP0996794A1 true EP0996794A1 (en) 2000-05-03
EP0996794B1 EP0996794B1 (en) 2002-09-04
EP0996794B2 EP0996794B2 (en) 2009-01-21

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ID=7835690

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Application Number Title Priority Date Filing Date
EP98925594A Expired - Lifetime EP0996794B2 (en) 1997-07-15 1998-05-13 Room air conditionning method and use of an air-conditioned ceiling in such a method

Country Status (10)

Country Link
US (1) US6267666B1 (en)
EP (1) EP0996794B2 (en)
AT (1) ATE223546T1 (en)
CA (1) CA2295501A1 (en)
CZ (1) CZ296471B6 (en)
DE (2) DE19730180C2 (en)
ES (1) ES2184272T3 (en)
HK (1) HK1026724A1 (en)
PT (1) PT996794E (en)
WO (1) WO1999004111A1 (en)

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DE19730180A1 (en) 1999-01-21
EP0996794B1 (en) 2002-09-04
DE59805437D1 (en) 2002-10-10
ATE223546T1 (en) 2002-09-15
WO1999004111A1 (en) 1999-01-28
CZ429799A3 (en) 2000-06-14
PT996794E (en) 2003-01-31
ES2184272T3 (en) 2003-04-01
CA2295501A1 (en) 1999-01-28
DE19730180C2 (en) 2000-11-30
US6267666B1 (en) 2001-07-31
CZ296471B6 (en) 2006-03-15
HK1026724A1 (en) 2000-12-22
EP0996794B2 (en) 2009-01-21

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