EP1710516B1 - Vorrichtung und Verfahren zur Befeuchtung eines Luftstromes - Google Patents

Vorrichtung und Verfahren zur Befeuchtung eines Luftstromes Download PDF

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Publication number
EP1710516B1
EP1710516B1 EP05090076A EP05090076A EP1710516B1 EP 1710516 B1 EP1710516 B1 EP 1710516B1 EP 05090076 A EP05090076 A EP 05090076A EP 05090076 A EP05090076 A EP 05090076A EP 1710516 B1 EP1710516 B1 EP 1710516B1
Authority
EP
European Patent Office
Prior art keywords
humidification
air
water
humidifying
circuit
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.)
Not-in-force
Application number
EP05090076A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1710516A1 (de
Inventor
Martin Dr.-Ing. Möritz
Hans Dr.-Ing. Peters
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
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
Priority to DE502005005748T priority Critical patent/DE502005005748D1/de
Application filed by Individual filed Critical Individual
Priority to ES05090076T priority patent/ES2319786T3/es
Priority to DK05090076T priority patent/DK1710516T3/da
Priority to PL05090076T priority patent/PL1710516T3/pl
Priority to AT05090076T priority patent/ATE412148T1/de
Priority to EP05090076A priority patent/EP1710516B1/de
Priority to PCT/EP2006/003029 priority patent/WO2006103108A1/de
Priority to JP2008503443A priority patent/JP2008545113A/ja
Priority to US11/910,363 priority patent/US20080157411A1/en
Priority to CA002603336A priority patent/CA2603336A1/en
Publication of EP1710516A1 publication Critical patent/EP1710516A1/de
Priority to NO20074812A priority patent/NO328977B1/no
Application granted granted Critical
Publication of EP1710516B1 publication Critical patent/EP1710516B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/08—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using heated wet elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/04—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements
    • F24F2006/046—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements with a water pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
    • F24F6/14—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air using nozzles
    • F24F2006/146—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air using nozzles using pressurised water for spraying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification

Definitions

  • the invention relates to a device for increasing the relative humidity of an air flow with humidifying means, which are arranged in the air flow and adapted for the delivery of humidifying water to the air flow, wherein the humidifying means are connected to a humidifying circuit, which via a circulating pump for circulating the dampening water in the Humidification circuit and a humidifying heat exchanger for heating the dampening water below the boiling point has.
  • the invention further relates to a method of humidifying an air stream in which moistening water is consumed in the air stream, wherein the moistening water is circulated in a humidifier water circuit under continuous heating and thus heated to a temperature between 40 and 95 degrees Celsius.
  • a trickle evaporator which has a device with extending to a rising air flow Rieselböden. To moisten the air flow water is applied by means of a water dispenser on the top Rieselièreteil. The water then trickles cascading on reasonably introduced into the Rieselböden openings over the Rieselböden and thereby strips the humidified air flow.
  • a humidifying circuit is further provided which has a circulating pump for circulating the humidifying water in the humidifying circuit and a humidifying heat exchanger for heating the humidifying water below the boiling point.
  • the outside air In order to meet the comfort requirements of the people, it is also necessary in the ventilation of interiors, the outside air to heat more or less depending on their temperature. The colder the outside air is compared to the desired room air temperature, the more the air has to be heated.
  • the DE 2 260 225 discloses a device for humidifying the air in an air-conveying room ventilation system whose humidifying means is designed as moistening water donating tube extending in an air heater. The dampening water exits through holes provided in the pipe and drips into the heat-emitting unit.
  • the DE 37 28 730 describes a non-air flow device for air heating and humidification, which consists of two combinkapillaren, heat storage and plate-like components, one of which is traversed by metallic heating tubes, which are traversed by a liquid heating medium. In the second component holes are introduced, which are filled with water, which evaporate over the plate surface and thus moisten the room air.
  • the EP 0 092 527 A2 discloses a radiator having an air humidification device having a tub filled with water. In the tub extending evaporation tubes for guiding the rising, heated air. The walls of the tub are covered with a porous layer, partially in the
  • the US 2,110,268 discloses a device for humidifying the air in optionally provided with outdoor or circulating air and air heating ventilation equipment, seen in the air flow direction behind a shell and tube heat exchanger, a water dispensing unit is arranged, which consists of one or more chambers with walls of a porous material. The chambers are traversed by water, which penetrates through the porous walls and moistens the air flowing past on the other side.
  • the WO 02/095297 describes a device for humidifying the air in ventilation devices, consisting of a battery of lamellae arranged side by side, over which a mobile carriage moves back and forth and drips water on the slats The water should evaporate after hitting the slats and thus moisten the room air ,
  • the device described is also arranged in the direction of air flow behind a tube heat exchanger intended for air heating.
  • the GB 463,369 discloses a ventilation system with a Heilbefeuchtungs Road, wherein the humidifier has a water reservoir, which is equipped with hot outside temperatures with a cooling. In cold outside temperatures this may be replaced by heating medium.
  • the prior art air humidification devices and methods suffer from a number of disadvantages.
  • some devices of the prior art seen in the air flow direction are located immediately behind air heaters, since on the one hand, the air after heating has a higher moisture absorption capacity and secondly, the heated air is to be deprived of more energy to evaporate the dampening water.
  • the water temperature directly at the interface between the humidifier water and the air to be humidified is too low to achieve a sufficient phase transition of the water from the liquid state to the gaseous state.
  • the flowing air which usually has only a temperature of about 20 - 24 ° C, cools the dampening water at the interface between water and air.
  • the device mentioned above has a humidification circuit with heat exchanger.
  • the heat exchanger heats the humidifier water, allowing for improved humidification.
  • the heated humidifier water cools rapidly after entering the airflow for the reasons mentioned above, so that the intended increase in humidification performance is only relatively small.
  • the device mentioned in the construction is in addition consuming and expansive.
  • the object of the invention is therefore to provide a device and a method of the type mentioned above, which enables effective humidification in a limited space in a cost effective manner, wherein the entry of spray water is reliably avoided in downstream room areas.
  • the invention solves this problem starting from the device mentioned above in that the humidifying means have a hollow porous material which is connected to the humidifying circuit.
  • the invention solves this problem on the basis of the method mentioned above in that the heated dampening water is introduced into a hollow porous material.
  • the humidifying circuit comprises a hollow porous material, wherein heated dampening water continuously and controllably flows through the porous material in the interior. Due to the continuous flow of heated water, heat energy is constantly replenished into the interior of the porous material so that a high temperature can be continuously maintained inside and due to the porosity of the water-filled humidifying means also on the air-side surface of the porous material.
  • suitable porosity of Humidifying agent eg, 1.9 ⁇ m mean pore size with an open porosity of 30%, can bring the heated dampening water to the airside surface of the humectant.
  • the device according to the invention can be arranged in any ventilation and air conditioning systems and at any desired location.
  • the device according to the invention for reasons of space savings in a cooling coil of an air conditioner, wherein the device according to the invention can also be used for heating purposes in addition to the humidification.
  • the combination of humidifying means with fins analogous to heating or cooling registers is advantageous. Also in this case it is possible to exploit the heating of the humidifier water to heat the air flow and thus to heat a room.
  • the inventive device for cooling the air or the connected room, wherein the humidification heat exchanger acts as a cooler and cools the water circulated in the humidifying circuit.
  • the humidification heat exchanger acts as a cooler and cools the water circulated in the humidifying circuit.
  • a dehumidification of the air can be achieved when falling below the dew point of the air to be cooled.
  • the heating and recycling of humidifying water allows a largely independent control of humidification, since the control of preheating the humidifying water has a control of humidification in the wake.
  • the temperature of the heated humidifying water is in the range between 40 and 95 degrees Celsius during operation of the device according to the invention.
  • the humidification circuit has a control unit connected to the circulation pump and the humidification heat exchanger, which is set up to regulate the circulation rate, the pressure and / or the temperature of the humidifying water in the humidifying means.
  • Control units are known as such, so that at this point on their structure need not be discussed in more detail.
  • a conventional control unit on appropriate parameter sets such as setpoints for the mass flow, the temperature, the pressure, or the relative humidity. The setpoints are compared with measured values provided to the control unit by suitable sensors.
  • a control routine for example in the form of software programs, performs certain control steps, such as increasing the flow rate of the circulation pump.
  • the humidification circuit has control valves connected to the control unit.
  • the control unit is thus able to adjust the temperature and the pressure and the flow rate of the humidifying water in the humidifying means by accessing the circulation pump and the control valves.
  • the hollow porous material is a porous tube through which the dampening water is driven under the action of the circulation pump. Depending on the pressure set, the dampening water penetrates through the porous wall of the pipe to the outside, where it is transferred into its vapor phase, for example, by a heated air flow.
  • the hollow porous material is in a related development in a heat-conducting contact with a heating element of a Heilloomregisters.
  • the humidifying agents have a hydrophilic surface.
  • the humidifying means comprise a perforated or apertured material. From the openings it comes to the outlet of dampening water.
  • the humidification circuit can be connected to a water supply via a water treatment plant.
  • the water treatment plant is used to remove unwanted substances dissolved in dampening water.
  • the moistening agents extend in a air heating device through which air flow can flow with heating elements.
  • the heating elements are for example formed independently of the Befeuchtungs63 hardwareer.
  • a preheating of the humidification without heating the air flow through the heating elements for example, by the supply and return of the heating elements after the humidification heat exchanger, however, are shorted before entering or leaving the air heater.
  • the humidifying heat exchanger is coupled to a flow of Heilmoreregisters.
  • a particularly cost preheating of the humidifying water is possible, since it can be dispensed with a separate power supply for preheating.
  • the preheating of the humidifying water also leads to no impairment of the heat output of Heilmoreregisters because the consumed by the preheating heat energy, for example, a few percent based on the total energy demand for air conditioning (heating and humidification), on the humidifying water also to be heated and humidified Air is transmitted.
  • the heating elements are heat conductively connected to a hollow hydrophilic and / or porous material. In this way, the humidification performance is further increased.
  • the humidifying means comprises a humidifying tube extending through an air heating coil and having humidifying openings for delivering the humidifying water. Also in this variant of the invention has been found that the humidification performance can be increased considerably by the preheating of the humidification.
  • the air heater on layers of a evaporation promoting material are, for example, hydrophilic materials which, contrary to the surface tension of the liquid moistening water, bring about a more extensive wetting of the material promoting the evaporation. The more extensive wetting facilitates the evaporation of dampening water.
  • hydrophilic materials in this context materials with a large, for example, grainy outer surface into consideration.
  • the heated dampening water is introduced into a hollow porous and / or hydrophilic material.
  • the hollow porous material extends in a heat exchange register with heating elements.
  • the heating elements heat the hollow porous material.
  • FIG. 1a shows an embodiment of the device according to the invention.
  • the device comprises a Befeuchtungstage moduleer 13 through which a flow 12,15 and a return 16,11 one in the FIG. 1a not shown Heilmoreregisters is directed.
  • a heated liquid heating medium is passed and supplied in this way a likewise not shown heating element of the Heilmoreregisters.
  • the liquid heating means of the flow 12,15 is heated for example by so-called district heating. Deviating from this, however, it is also possible that another local heat exchanger is used in the context of the invention to allow heating of the heating element of Heilmoreregisters.
  • the Befeuchtungstage sensor 13 is part of a humidifying 5, which further has a circulating pump 7 and control valves 6 and 7.
  • the humidifying 5 is via a humidifying inlet 17 and a humidification 18 with a likewise in FIG. 1a not shown humidifier connected, with which the relative humidity of the air humidifier passing air flow can be increased.
  • a humidifying inlet 17 and a humidification 18 with a likewise in FIG. 1a not shown humidifier connected, with which the relative humidity of the air humidifier passing air flow can be increased.
  • FIG. 1a not shown humidifier On the Functioning of the humidifier will be discussed in more detail below.
  • the humidification circuit 5 is connected via a water treatment plant 3 to a conventional water supply 1, such as a city water pipe. To regulate the water supply in turn serves a control valve. 4
  • control valves 4, 6 and 10 and the circulation pump 7 are provided with a in FIG. 1a Not shown control unit connected, which is adapted to adjust the flow through the control valves 4, 6 and 10 and for adjusting the pump power of the circulation pump 7.
  • the control unit is also with in FIG. 1a not shown temperature and pressure sensors connected. In this way, a regulation of the pressure, the temperature and the flow rate of the humidifying water in the humidifying means 5 is made possible. The regulation takes place as a function of predetermined setting parameters and with the aid of a logic implemented in the control unit.
  • FIG. 1b shows a further embodiment of the device according to the invention, wherein in contrast to the in FIG. 1a shown embodiment, only the flow 12,15 of shipsstraddles is guided by the Befeuchtungstagerizationer 13.
  • FIG. 2 shows a device according to FIG. 1a with an air heater 9 shown schematically.
  • the air heater 9 is arranged in a channel-shaped housing 14 of a ventilation system, wherein the housing 14 is penetrated by an air flow 30 in the direction of the arrow shown.
  • the air heating coil 9 is followed by a humidifier 8, which communicates via the inlet 17 or via the outlet 18 with the humidifying circuit 5.
  • a humidifier 8 which communicates via the inlet 17 or via the outlet 18 with the humidifying circuit 5.
  • the humidifier 8 for example, a conventional nozzle tube, wherein the moistening water exiting the nozzle and entrained by the air flow 30 and is heated.
  • FIG. 3 shows a further embodiment of the device according to FIG. 2 However, wherein air heater and humidifier are combined to form a schematically indicated common combination register 21.
  • FIG. 4 shows the embodiment according to FIG. 3 with a combination register shown in more detail 24.
  • the combination register 24 shown there has parallel to each other aligned flat heat exchanger fins 28 which are traversed in a transverse direction of tubular heating elements 26.
  • the heating elements 26 are in heat-conducting contact with the heat exchanger fins 28 and are supplied via the inlet 15 with heated liquid heating medium flowing through the tubular heating elements 26.
  • the heating elements 26 heat up the heat exchanger lamellae 28 and thus heat up the air flow 30 flowing past the heat exchanger lamellae 28.
  • tubular air humidifying means 25 are connected via the inlet 17 and the outlet 18 to the humidifying 5 and consist of a porous material.
  • the tubular porous material partially circulating humidifying water penetrates depending on the pressure set by the control unit, not shown, the wall of the porous material and is transferred by the simultaneous heating without droplet formation in its gas phase.
  • a water drainage trough 22 is arranged below the combination register 24 and has a water outlet nozzle 23 for discharging the water.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Humidification (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Sorption Type Refrigeration Machines (AREA)
EP05090076A 2005-03-29 2005-03-29 Vorrichtung und Verfahren zur Befeuchtung eines Luftstromes Not-in-force EP1710516B1 (de)

Priority Applications (11)

Application Number Priority Date Filing Date Title
ES05090076T ES2319786T3 (es) 2005-03-29 2005-03-29 Dispositivo y procedimiento para la humidificacion de un flujo de aire.
DK05090076T DK1710516T3 (da) 2005-03-29 2005-03-29 Apparat og fremgangsmåde til befugtning af en luftström
PL05090076T PL1710516T3 (pl) 2005-03-29 2005-03-29 Urządzenie i sposób nawilżania strumienia powietrza
AT05090076T ATE412148T1 (de) 2005-03-29 2005-03-29 Vorrichtung und verfahren zur befeuchtung eines luftstromes
EP05090076A EP1710516B1 (de) 2005-03-29 2005-03-29 Vorrichtung und Verfahren zur Befeuchtung eines Luftstromes
DE502005005748T DE502005005748D1 (de) 2005-03-29 2005-03-29 Vorrichtung und Verfahren zur Befeuchtung eines Luftstromes
PCT/EP2006/003029 WO2006103108A1 (de) 2005-03-29 2006-03-29 Vorrichtung und verfahren zur befeuchtung eines luftstroms
JP2008503443A JP2008545113A (ja) 2005-03-29 2006-03-29 空気の流れを加湿するデバイスおよび方法
US11/910,363 US20080157411A1 (en) 2005-03-29 2006-03-29 Device and Method for Humidifying an Air Flow
CA002603336A CA2603336A1 (en) 2005-03-29 2006-03-29 Device and method for humidifying an air flow
NO20074812A NO328977B1 (no) 2005-03-29 2007-09-21 Anordning og framgangsmate for fukting av en luftstrom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05090076A EP1710516B1 (de) 2005-03-29 2005-03-29 Vorrichtung und Verfahren zur Befeuchtung eines Luftstromes

Publications (2)

Publication Number Publication Date
EP1710516A1 EP1710516A1 (de) 2006-10-11
EP1710516B1 true EP1710516B1 (de) 2008-10-22

Family

ID=34938417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05090076A Not-in-force EP1710516B1 (de) 2005-03-29 2005-03-29 Vorrichtung und Verfahren zur Befeuchtung eines Luftstromes

Country Status (11)

Country Link
US (1) US20080157411A1 (es)
EP (1) EP1710516B1 (es)
JP (1) JP2008545113A (es)
AT (1) ATE412148T1 (es)
CA (1) CA2603336A1 (es)
DE (1) DE502005005748D1 (es)
DK (1) DK1710516T3 (es)
ES (1) ES2319786T3 (es)
NO (1) NO328977B1 (es)
PL (1) PL1710516T3 (es)
WO (1) WO2006103108A1 (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008031586B3 (de) * 2008-07-03 2009-07-02 Terrawater Gmbh Befeuchtungswärmetauscher
DE102016108130A1 (de) 2016-05-02 2017-11-02 Fachhochschule Westküste Hochschule für Wirtschaft & Technik Verfahren und Vorrichtung zur Dampfbefeuchtung von zumindest einem Luftstrom einer Klimaanlage mittels Energie aus Fernwärme und eine Klimaanlage mit dieser Vorrichtung

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DE102009007591B3 (de) * 2009-02-05 2011-03-10 Hochschule für Technik und Wirtschaft Berlin. Verfahren und Vorrichtung zur Luftkonditionierung
DE102010006889A1 (de) 2010-02-05 2011-08-11 Klingenburg GmbH, 45968 Vorrichtung zur Konditionierung eines Luftstroms
US20110232775A1 (en) * 2010-03-24 2011-09-29 Chale David R Flow through humidifier recirculating pump
DE102011013443A1 (de) 2011-03-09 2012-09-13 Klingenburg Gmbh Vorrichtung zur Konditionierung eines Luftstroms
ES2569993T3 (es) 2014-03-14 2016-05-13 Scanbur A/S Vaporizador de flujo bajo y unidad de control climático y sistema de jaulas que comprende un vaporizador de este tipo
DE102019117383A1 (de) * 2019-06-27 2020-12-31 Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen, Körperschaft des öffentlichen Rechts System und Verfahren zur Regelung eines Medienparameters des Mediums auf der Sekundärseite eines Wärmeübertragers
CN110332594A (zh) * 2019-08-11 2019-10-15 福建易辰达机械有限公司 一种具有循环加湿机构的取暖炉

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008031586B3 (de) * 2008-07-03 2009-07-02 Terrawater Gmbh Befeuchtungswärmetauscher
DE102016108130A1 (de) 2016-05-02 2017-11-02 Fachhochschule Westküste Hochschule für Wirtschaft & Technik Verfahren und Vorrichtung zur Dampfbefeuchtung von zumindest einem Luftstrom einer Klimaanlage mittels Energie aus Fernwärme und eine Klimaanlage mit dieser Vorrichtung

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NO328977B1 (no) 2010-07-05
NO20074812L (no) 2007-10-29
US20080157411A1 (en) 2008-07-03
WO2006103108A1 (de) 2006-10-05
DE502005005748D1 (de) 2008-12-04
ES2319786T3 (es) 2009-05-12
PL1710516T3 (pl) 2009-04-30
EP1710516A1 (de) 2006-10-11
DK1710516T3 (da) 2009-02-16
CA2603336A1 (en) 2006-10-05
ATE412148T1 (de) 2008-11-15
JP2008545113A (ja) 2008-12-11

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