EP1307691A1 - Procede d'introduction d'air dans une piece, systeme de ventilation/refroidissement pour piece et systeme d'eclairage destine a etre installe dans une piece - Google Patents

Procede d'introduction d'air dans une piece, systeme de ventilation/refroidissement pour piece et systeme d'eclairage destine a etre installe dans une piece

Info

Publication number
EP1307691A1
EP1307691A1 EP01961439A EP01961439A EP1307691A1 EP 1307691 A1 EP1307691 A1 EP 1307691A1 EP 01961439 A EP01961439 A EP 01961439A EP 01961439 A EP01961439 A EP 01961439A EP 1307691 A1 EP1307691 A1 EP 1307691A1
Authority
EP
European Patent Office
Prior art keywords
air
room
ceiling
sub
light fitting
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Withdrawn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
EP01961439A
Other languages
German (de)
English (en)
Inventor
Märten FAUGLI
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.)
Ventilasjonsteknikk AS
Original Assignee
Ventilasjonsteknikk AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ventilasjonsteknikk AS filed Critical Ventilasjonsteknikk AS
Publication of EP1307691A1 publication Critical patent/EP1307691A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/61—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0088—Ventilating systems
    • F21V33/0092—Ventilating systems with heating or cooling devices
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • 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
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
    • F24F3/056—Systems in which all treatment is given in the central station, i.e. all-air systems the air at least partially flowing over lighting fixtures, the heat of which is dissipated or used 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/02—Details or features not otherwise provided for combined with lighting fixtures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/28—Details or features not otherwise provided for using the Coanda effect

Definitions

  • the invention relates to a method for introducing air into a room, where the air is passed in a supply duct in the ceiling and out through a suitable opening and directed along a heat source in the ceiling.
  • Modern ventilating engineering for rooms includes the option of cooling the supply air.
  • supply air When such supply air is introduced into a room directly beneath the ceiling, it is a condition, in order to prevent the occupants of the room from being exposed to the undesirable effects of a draught or from feeling a draught, that the air supplied to the room, which passes along the ceiling to an extract air terminal device, has a temperature of at least about 15°C, so that the air does not fall or drop and is not felt as a draught by the occupants of the room.
  • the object of the invention is to permit ventilation/cooling of the air in a room in such a way that the draught or feeling of draught is eliminated, whilst enabling the system to be made simpler and less expensive.
  • a method is proposed as mentioned in the introduction, which method is characterised in that the air is passed in a ceiling space that is separated from the room by an airtight, heat-conducting sub-ceiling, and out through one or more slots in a light fitting in the sub-ceiling in a direction such that the air sweeps across the room-facing side of the light fitting and is extracted in the upper area of the room.
  • the air is passed in heat exchange with the room air, via the airtight sub-ceiling, and is heated. Further heating takes place by the air sweeping across the light fitting.
  • relatively cold air can be used as intake or supply air, with heating thereof to such an extent that the draught effect which occurs at temperatures of less than 15°C is eliminated, because the air is heated to a temperature of at least 15°C as a result of the heat exchange via the ceiling and with the light fitting, when the supply air has a temperature of, for example, 10°C. It is previously known to pass air above a sub-ceiling and into a room via slots in the sub-ceiling.
  • the air supplied in order for the supply air to "adhere" to the sub- ceiling by utilising the so-called Coanda effect, the air supplied must have a temperature no lower than 15°C, because otherwise the air will fall and be felt as a draught by the occupants of the room.
  • the air that is delivered to the ceiling space can have a temperature of 10°C.
  • the supply air in the ceiling space will reach a temperature of about 12.5°C before the air, after its outflow from the opening or the slots in the light fittings, draws with it air that has been heated by the light elements in the fitting and is therefore delivered to the room at a temperature of 15°C.
  • the temperatures given here apply on the whole and in general to rooms having normal heating and fitted with commonly used light fittings.
  • One effect of the invention is that no extra heating is required in addition to a standard heat exchanger in the winter even though the air is supplied at 10°C instead of 15°C. Calculations have shown that the invention gives a total installation that is 35% cheaper, and that the running costs can be reduced by 30%. In addition, the air supplied at 10°C has less absolute air humidity than the air conventionally supplied at 15°C, which means that problems of condensation are eliminated.
  • cooling of the sub-ceiling gives a so-called cooling ceiling principle, which causes the room temperature felt (operative temperature) to be about 1°C less (25°C will be felt as 24°C).
  • a side-effect of the invention is that the light elements, in particular fluorescent tubes, will have a longer useful life.
  • the air is passed in through a damper device controlled by an extract air temperature sensor.
  • the damper device can advantageously be set at a certain, constant minimum supply air flow rate, the temperature sensor being used for the opening/closing movement of a damper in the damper device in order to supply extra air volume in accordance with the temperature sensed.
  • a ventilation/cooling system for a room comprising a ceiling space delimited by a sub-ceiling and at least one light fitting in the sub-ceiling, which system is characterised in that the sub-ceiling is airtight and heat-conducting, that a supply air terminal device is connected to the ceiling space, that an extract air terminal device is arranged in the upper area of the room, and that the light fitting has an opening for the passage of air from the ceiling space to the room in a direction that causes the air to sweep across the light fitting in the direction of the extract air terminal device.
  • a temperature sensor that controls a supply air damper device can be arranged in the extract air terminal device.
  • the supply air terminal device may advantageously include an adjustable passage outside the damper device.
  • a light fitting for installation in a sub- ceiling in a room and comprising a housing containing light elements, characterised by an opening, preferably one or more slots in the housing, for directing an air flow from above the sub-ceiling and along the light elements to sweep over these elements on the room side.
  • Fig. 1 is a purely schematic section through a room fitted with a ventilation/cooling system according to the invention
  • Fig. 2 shows on a larger scale a regulating device that is used in the system in Fig. 1 ;
  • Fig. 3 is a purely schematic cross-section through a light fitting containing a fluorescent tube; and Fig. 4 is a view of the housing shown in Fig. 3 seen from the right-hand side in Fig. 3.
  • Fig. 1 shows a room 1 with a floor 2, a ceiling 3 and walls 4, 5. Arranged immediately beneath the ceiling 3 is a sub-ceiling 6 that defines a ceiling space 7.
  • two light fittings 8 and 9 in this case in the form of respective box-shaped fittings with fluorescent tubes arranged therein, are provided in the sub-ceiling 6.
  • a more detailed description of this arrangement will be given in connection with an exemplary embodiment in Figures 3 and 4.
  • air is passed into the ceiling space 7, through a suitable air diffuser 11.
  • the air passes out through slots or openings in the light fittings, as indicated by the arrows in connection with the individual light fitting 8, 9, and passes to an extract air terminal device 12.
  • Figs. 3 and 4 show a light fitting 8, primarily consisting of a fitting housing 13 and fluorescent tubes 14 arranged therein.
  • the housing 13 is arranged in a way that is known per se in the corresponding opening in the sub-ceiling 6, and the fluorescent tubes 14 illuminate the room 1 below in a known way.
  • the supply air that is passed into the ceiling space 7 (see Fig. 1) will create a small overpressure in the ceiling space 7, and the air will flow from the ceiling space 7 out through slots 15, 16 in the light fitting, i.e., the housing 13.
  • the slots 15, 16 are so positioned that the air will be delivered to the room at a small angle relative to the sub-ceiling 6, as indicated by the arrows in Fig. 3.
  • the slots 15, 16 are so positioned that, as shown by the arrows, the air will sweep across the light elements (the fluorescent tubes) 14, and pass in the direction of the extract air terminal device 12 (see Fig. 1).
  • the ventilating/ cooling air (the supply air) will draw with it air that has been heated by the light elements 14, as indicated by the arrows inside the housing 13, and will also draw with it air from the room 1 towards the extract air terminal device 12.
  • the slots in the light fitting can preferably have a horizontal lip (not shown) at their lower edge so as to ensure that the air is supplied at a small angle relative to the sub- ceiling 6.
  • the Coanda effect will work even though the supply air has an angle of up to about 30° relative to the horizontal plane (the surface of the sub-ceiling).
  • the supply air that enters the ceiling space 7 will have a heat exchange relationship with the warmer air in the room 1 through the airtight and heat-conducting sub-ceiling 6, and the supply air will thus be heated in the ceiling space. Further heating of the supply air is achieved when the supply air sweeps across the light fittings on their light sides. If, for example, air having a temperature of 10°C is delivered to the ceiling space, the supply air above the sub-ceiling will reach a temperature of about 12.5°C because of the heat exchange with the sub-ceiling, which is heated due to the heat from the room, where the temperature is, for example 25°C.
  • the ventilation/cooling system has a regulating device 10, comprising a thermosensor in the extract air terminal device 12. This thermosensor regulates the air supply and air extraction flow rate by directly actuating a valve body in the supply air supply.
  • the regulating device is in the form of a casing that is divided into two sections, namely a supply air terminal device 17 and an extract air terminal device 12.
  • the supply air terminal device 17 there is a dividing wall 18 equipped with an opening 19 and an opening 20.
  • the opening 20 is adjusted by a preferably manually adjustable damper 21. By turning the damper 21 , the air volume that passes through the opening 20 can be set permanently.
  • the opening 20 thus forms a permanent by-pass as regards the opening 19 through which supply air whose flow rate is determined by the damper 22 passes.
  • the damper 22 is connected to an adjustment bar 23 that is rotatably supported at 24, between the supply air terminal device 17 and the extract air terminal device 12, and is connected to a thermosensor 25, arranged in the extract air terminal device 12. The extract air that enters from the right in Fig.
  • thermosensor 15 which in turn causes a turning of the adjustment rod 23, whereby the damper or the plate 22 is moved in order to allow more or less supply air to pass through the opening 19, in addition to the permanent supply air volume that passes through the damper-adjusted opening 20.
  • the thermosensor 25 will react and open the damper device 19, 22, i.e., the plate 22 is moved to the right as indicated by the dotted lines, so that a greater volume of cold air can be supplied to the ceiling space 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Duct Arrangements (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

La présente invention concerne un procédé permettant d'introduire de l'air dans une pièce (1), dans lequel l'air passe dans un conduit d'alimentation placé dans le plafond, ressort par un orifice adapté pour être canalisé le long d'une source de chaleur (8, 9) située dans ce plafond. L'air passe dans un espace (7) du plafond séparé de la pièce (1) par un faux plafond (6) étanche à l'air et conducteur thermique, et il ressort par une ou plusieurs fentes (15, 16) dans une applique d'éclairage (8, 9) placée dans ce faux plafond (6), dans un sens dans lequel l'air balaye le côté de l'applique d'éclairage (8, 9) qui fait face à la pièce (1), avant d'être évacué dans la partie supérieure de cette pièce (1).
EP01961439A 2000-08-04 2001-07-27 Procede d'introduction d'air dans une piece, systeme de ventilation/refroidissement pour piece et systeme d'eclairage destine a etre installe dans une piece Withdrawn EP1307691A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20003951A NO20003951A (no) 2000-08-04 2000-08-04 Fremgangsmåte ved innføring av luft i et rom, ventilering/kjølesystem for et rom og belysningsarmatur for montering i et rom
NO20003951 2000-08-04
PCT/NO2001/000324 WO2002014749A1 (fr) 2000-08-04 2001-07-27 Procede d'introduction d'air dans une piece, systeme de ventilation/refroidissement pour piece et systeme d'eclairage destine a etre installe dans une piece

Publications (1)

Publication Number Publication Date
EP1307691A1 true EP1307691A1 (fr) 2003-05-07

Family

ID=19911452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01961439A Withdrawn EP1307691A1 (fr) 2000-08-04 2001-07-27 Procede d'introduction d'air dans une piece, systeme de ventilation/refroidissement pour piece et systeme d'eclairage destine a etre installe dans une piece

Country Status (4)

Country Link
EP (1) EP1307691A1 (fr)
AU (1) AU2001282700A1 (fr)
NO (1) NO20003951A (fr)
WO (1) WO2002014749A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2917679C (fr) 2015-01-16 2019-09-10 Air System Components, Inc. Commande d'eclairage pour poutre froide
US10401050B2 (en) 2015-01-16 2019-09-03 Air Distribution Technologies Ip, Llc Lighting control for chilled beam
WO2016168676A1 (fr) * 2015-04-17 2016-10-20 Air System Components, Inc. Commande d'éclairage pour poutre climatique
JP7229664B2 (ja) * 2018-01-31 2023-02-28 三機工業株式会社 空調システム

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259052A (en) * 1963-08-08 1966-07-05 Emerson Electric Co Combined lighting and air handling apparatus
US3420439A (en) * 1967-01-05 1969-01-07 Lithonia Lighting Inc Comfort conditioning system
US3403614A (en) * 1967-04-28 1968-10-01 Bendix Corp Environmental enclosure with ceiling air plenum
US4407445A (en) * 1979-03-09 1983-10-04 Constantine Vivian Ceiling construction for a heating, ventilation and air conditioning system
DE8703910U1 (fr) * 1987-03-16 1987-04-23 Gebrueder Trox, Gmbh, 4133 Neukirchen-Vluyn, De
DE4301159C1 (de) * 1993-01-18 1994-05-05 Kesslertech Gmbh Vorrichtung für die Belüftung und Beleuchtung eines Raumes oder eines Raumbereiches

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0214749A1 *

Also Published As

Publication number Publication date
NO20003951D0 (no) 2000-08-04
AU2001282700A1 (en) 2002-02-25
WO2002014749A1 (fr) 2002-02-21
NO310045B1 (no) 2001-05-07
NO20003951A (no) 2001-05-07

Similar Documents

Publication Publication Date Title
US6295823B1 (en) Apparatus and method for controlling temperature and humidity of a conditioned space
US5179998A (en) Heat recovery ventilating dehumidifier
KR101628152B1 (ko) 제습용 히트파이프를 이용한 에너지 절약형 외기전담 공기조화기 및 상기 외기전담 공기조화기와 칠드 빔을 조합하는 공기조화 시스템
US4284236A (en) Air conditioning system
JP3914872B2 (ja) 空気調整装置
EP1307691A1 (fr) Procede d'introduction d'air dans une piece, systeme de ventilation/refroidissement pour piece et systeme d'eclairage destine a etre installe dans une piece
US4786300A (en) Air conditioner
US2969652A (en) Heating, ventilating and cooling unit
JPH083368B2 (ja) 空調設備
US20090088067A1 (en) Trickle vent
EP0115674A2 (fr) Dispositif pour le chauffage et/ou le refroidissement des locaux
US2321687A (en) Refrigerating apparatus
US2029368A (en) Method and apparatus for conditioning air
US4817507A (en) Air supply device
US1977248A (en) Air conditioning system
JPH06201152A (ja) 空調装置
JP4424532B2 (ja) 放射方式併用の対流型空調システム
KR20190052485A (ko) 공기청정 환기장치
ATE252218T1 (de) Zentralheizung benutzende heiz- und klimaanlage
JP2988572B2 (ja) 天吊型冷暖房兼用空気調和機
JPH0345053Y2 (fr)
NL1005429C2 (nl) Ventilatie-eenheid.
FI71833B (fi) Luftstyrsystem
SU979797A1 (ru) Система кондиционировани воздуха
EP0807791A3 (fr) Système de ventilation pour les pièces d'un bâtiment

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20030228

AK Designated contracting states

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17Q First examination report despatched

Effective date: 20061229

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100902