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WO2010095931A1 - Procédé de refroidissement d'une salle tic et élément de séparation associé - Google Patents

Procédé de refroidissement d'une salle tic et élément de séparation associé Download PDF

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Publication number
WO2010095931A1
WO2010095931A1 PCT/NL2010/000026 NL2010000026W WO2010095931A1 WO 2010095931 A1 WO2010095931 A1 WO 2010095931A1 NL 2010000026 W NL2010000026 W NL 2010000026W WO 2010095931 A1 WO2010095931 A1 WO 2010095931A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
aisle
partition element
ict
cooling
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.)
Ceased
Application number
PCT/NL2010/000026
Other languages
English (en)
Inventor
Johannes Cornelis Antonius Van De Pas
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.)
Jca Van De Pas Holding Bv
Original Assignee
Jca Van De Pas Holding Bv
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 claimed from NL1036636A external-priority patent/NL1036636C2/nl
Application filed by Jca Van De Pas Holding Bv filed Critical Jca Van De Pas Holding Bv
Publication of WO2010095931A1 publication Critical patent/WO2010095931A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
    • H05K7/20718—Forced ventilation of a gaseous coolant
    • H05K7/20745—Forced ventilation of a gaseous coolant within rooms for removing heat from cabinets, e.g. by air conditioning device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. air curtains

Definitions

  • the present invention relates to a method for cooling t an ICT room, which ICT room contains at least one row of continuous, racks having ICT equipment that needs to be cooled, wherein:
  • partition element comprises a supply duct for cooling air, and cooling air is introduced into the aisle from above
  • the present invention aims to provide a method that further re- prises the energy expenditure for cooling.
  • the method according to the invention is characterized in that the method also comprises the forming of an air curtain near at least one end of the aisle, by means of an air exit opening that is connected to the supply duct in order to provide a seal between the aisle and the ICT-room situated outside the aisle.
  • the racks are usually 19" racks.
  • the term' continuous means that the racks of a row are situated against each other or are connected with each other by means of substantially airtight walls. It goes without say ⁇ ing that absolutely airtight is not necessary, but that any passage for cooling air not leading via the housings of the ICT equipment will in principle deteriorate the energy efficiency and should thus be avoided.
  • higher situated openings along which cold air can escape are worse than lower situated openings.
  • heated cooling air exits the racks, which heated air rises and is kept separated from the cooling air by means of the partition element.
  • the warm air may dissipate its heat via the wall of the ICT room, by active cooling or by the discharge of warm air from the ICT room.
  • the method according to the invention can be implemented at relatively low cost, which further contributes to the economical aspect of the invention.
  • the effective way of supplying cooling air according to the invention makes it further possible to control the cooling air supply in a simple way, namely by a measurement of the temperature difference between a point in the aisle that is situated relatively high and a point in the aisle that is situated relatively low. If this difference in temperature is greater than a desired value, the amount of cooling air supplied via the supply duct will be increased and/or the temperature of the cooling air supplied via the supply duct will be reduced until the difference in temperature has been lowered below this threshold value.
  • the supply duct for cooling air in the present invention also indicated by air duct or air supply duct, is preferably a duct in the longitudinal direction of the partition element, which permits the supply of cooling air to the aisle with little flow resistance.
  • the wall of the supply duct can advantageously be part of the not airtight wall from the partition element, which may accomplish a saving on material and weight.
  • a significant embodiment is characterized in that the wall is formed by a second row of continuous racks, and the row of continuous racks and the second row of continuous racks together constitute a double row of continuous racks, wherein the partition element extends between the double row above the aisle.
  • the partition element is near at least one end of the aisle arranged to provide an air curtain, such as for instance supplied by the firm Gelu-Frico (Helmond, NL) as Coolline KLS and Coolline KLS-DUO, especially to confine cold air and thereby to push away the warm air (in concreto to separate the warm air and cold air at both sides of the air curtain and to prevent at least partially mutual mixing) .
  • an air curtain such as for instance supplied by the firm Gelu-Frico (Helmond, NL) as Coolline KLS and Coolline KLS-DUO, especially to confine cold air and thereby to push away the warm air (in concreto to separate the warm air and cold air at both sides of the air curtain and to prevent at least partially mutual mixing) .
  • An air curtain can be obtained with a (optionally horizontally and vertically adjustable) most often elongated air ventilation open- ing, in the technique known as air grate.
  • This air ventilation opening may be be disposed at the underside of the partition element principally above the supply opening from the ICT room towards the aisle, or at a side of that supply opening, in such a way that the air flow is supplied in the plane of that supply opening.
  • an adjustable valve or the like can be provided in order to be able to control an air flow rate led through the opening without the necessity of an active component (a drive fan or the like) .
  • An air grate for this purpose is standard available on the market, for instance of the brand Trox, type VAT-DG 75x525mm and is marketed by Schilt Luchttechniek BV, Energyweg 29, Postbus 3, 4230 BA in Meer- kerk (Netherlands) . Since the air grate produces a lower air resistance than the exit means (according to the invention preferably a perforated textile cloth of the partition element) a much higher air exit velocity will be obtained via the air grate, creating an air curtain and obtaining a good separation between warm and cold air near the head of the aisle.
  • the effect obtained by applying the air curtain is a free entrance of service staff in the aisle while never- theless an undisturbed, constant supply of cooled air will take place towards the equipment arranged in the racks (also indicated by cabinets) at at least one of the sides near the head of the aisle under suction of the cooling air from the aisle.
  • the partition element is arranged for the feeding of cooling air to the aisle along at least 70% of the length of the aisle, preferably at least 85%.
  • the partition element at the topside thereof is thermally insulating.
  • the partition element comprises a supply duct that is at least partially formed of cloth, which supply duct is provided with through openings at the side directed towards the aisle, wherein the cooling air is supplied to the aisle via the through openings. This also provides the advantage of the proper mixing of the cooling air into a homogeneous mass.
  • the air supplied to the partition element is conditioned first.
  • the conditioning will in general comprise at least one of - cooling
  • the conditioning comprises the cooling of air using an air conditioning cabinet that comprises an exit opening for condi- tioned air, the center line of which is at a height that deviates 1 m at the most from the height of the partition element where air exits the partition element at the underside, and preferably at most 0,5 m.
  • an air conditioning cabinet that comprises an exit opening for condi- tioned air, the center line of which is at a height that deviates 1 m at the most from the height of the partition element where air exits the partition element at the underside, and preferably at most 0,5 m.
  • At least the supplied outside air will be filtered in order to prevent dust and/or insects and the like from entering the ICT room.
  • the outside air is withdrawn from the environment at a height that deviates at most 1 m from the height of the partition element where air exits the partition element at the underside, and preferably at most 0,5 m. In this way, the energy costs for moving air in a vertical direction remain limited.
  • the energy costs can be further reduced when the outside air is supplied from an environment rich of plants in which plants are present that protrude to a position above the supply opening for outside air.
  • the plants are preferably trees. Plants provide shadow and also because of the heat that is withdrawn as a result of vaporization of water from the leaves, relatively cold cooling air can be obtained without much effort.
  • the plants are located within a distance of 8 m and preferably within a distance of less than 4 m from the air supply which leads to the air conditioning cabinet.
  • the energy costs can be further reduced when the outside air on the northern hemisphere is withdrawn from the environment at the northern side of the ICT room, and on the southern hemisphere from the southern side.
  • a further preferred embodiment is constituted by a method wherein the air exit opening for forming the air curtain is arranged at an upper side of the end of the aisle and cooling air is supplied downwardly through the exit opening.
  • the vertical airflow obtained therewith provides a suitable air curtain at the end of the aisle.
  • Yet another preferred embodiment is formed by a method wherein the air exit opening for forming the air curtain is arranged at a side of the end of the aisle and cooling air is supplied through the exit opening towards the opposite side of the aisle.
  • This provides a horizontal airflow that only has to bridge the distance between two rows of racks containing equipment in order to provide an adequate seal of the aisle relative to the ICT room situated outside thereof. This distance will generally be less than the distance from the upper side of the aisle down to the floor as a result of which an air curtain can be obtained with less effort.
  • the invention also relates to a partition element that is suitable for usage with the method according to the invention.
  • a partition element for an ICT room which partition element comprises an air duct containing a supply opening for cooling air and at one side thereof is provided with through openings for the discharge of cooling air from the partition element.
  • Such a partition element will in general have a width of at least 60 cm, such as for instance 50-70 cm for a single row of racks limited by a wall, and for a double row for instance 100-130 cm.
  • the partition element comprises a frame in which as the air duct an air duct of cloth is suspended, which air duct is provided with the through openings for the discharge of cooling air from the partition element.
  • the air duct formed from cloth preferably has wings in its longitudinal direction which wings are retained in a profile of the frame.
  • the cloth will be a textile that does not release fibres.
  • the partition element has a side that is not provided with through openings for the discharge of cooling air from the partition element and this side is thermally more insulating than the side that is provided with through openings for the discharge of cooling air from the partition element.
  • fig. 1 represents a floor plan of an ICT room with a double row of continuous racks
  • fig. 2 represents a front view of the double row racks of fig. 1
  • fig. 3 shows a cross section of a partition element according to the invention, showing a detailed view
  • fig. 4 shows an alternative cross section of a partition element according to the invention
  • fig. 5 shows a top view of the partition element of fig. 3 in detail
  • fig. 6 represents in a side view a cross section of an ICT building
  • fig. 7 shows an alternative embodiment of the implementation of an air curtain.
  • Fig. 1 shows the floor plan of an ICT room 100 in which two rows 101, 102 of continuous 19" racks 103 with an aisle 104 in between are indicated. Arrows indicate the airflow via the racks 103. Reference number 191 indicates a door of the ICT room 100.
  • Fig. 2 shows a front view of the two rows 101, 102 of racks 103 of fig. 1, wherein it can be seen that above the aisle 104 a parti- tion element 200 is provided, wherein the partition element 200 connects to the topside of the rows 101, 102 and keeps relatively cold cooling air below the partition element 200 separated from the comparatively warm air above the partition element 200.
  • the separation is an airtight separation.
  • the partition element 200 com- prises a frame 201 that is provided with two hollow tubular like air ducts 221, 231, each possessing wings 222, 223, resp. 232, 233.
  • these fulfil a twofold function: They keep the hollow tubular like air ducts 221, 231 in position, and take care of keeping the relatively warm air above the partition element 200 and the comparatively cold air below the partition element 200 separated in a substantially airtight way.
  • the partition element 200 is shown in cross section in more detail in fig. 3. It can be seen that the distal longitudinal sides of the wings 222, 223, 232, 233 are taken up in profiles 340 (cf. detail of fig. 3 where it is shown how a thickened longitudinal side 222' of the wing 222 is enclosed within the profile 340) and are thereby retained. This allows for compact transporting and assembling in situ (in or near the ICT room) of the partition elements.
  • the profiles 340 are attached to longitudinally directed frame tubings 350 or form an integral part thereof.
  • the hollow tubular like air ducts are preferably formed of tex ⁇ tile that does not release fibres or the like.
  • a suitable material is PLI that is marketed by NorthAir (Roden, Nederland) . In order to prevent fraying, this material is provided, preferably using a laser, with holes 360. Arrows indicate the flow of relatively cold cooling air at the underside (that is to say, the side directed towards the aisle) of the partition element 200.
  • Reference number 391 refers to a lamp, such as an energy efficient high frequency TL tube light.
  • relatively cold cooling air such as is supplied to the air ducts 221, 231
  • FIG. 4 an alternative embodiment of a partition element 400 is shown.
  • the hollow tubular like air ducts 421, 431 have been partly provided with rigid heat insulating plastic walls 401 in order to limit the transfer of heat from outside the partition element 400 towards the relatively cold cooling air that is still to be used and the air supply towards the aisle 104 is provided by a cloth 402 with holes, for instance the above mentioned PLI or a cloth of a woven material.
  • the insulating plastic walls 421 have been slided in profiles 410.
  • Reference number 491 re- fers to a lamp, such as a TL lamp.
  • Fig. 5 shows a top view in the longitudinal direction of a partition element 500 (of which the cross-section is shown in fig. 3) with two ducts 521, 531 for cooling air, two supply openings 551, 552 for cooling air in the form of connecting ducts.
  • the cooling air flows via the supply openings 551, 552 into the air ducts 521, 531.
  • the air ducts 521, 531 are ducts formed out of textile, which have been slided over pipe ends 551', 551" respectively 552', 552". In the embodiment illustrated here, the pipe ends 551" and 552" are sealed.
  • the locations of exit grates 591 at the underside of the partition element 500 have been indicated, which exit grates 591 provide for an air curtain in the aisle situated below.
  • Fig. 6 shows a side view of an ICT building 600 with an ICT room 660 provided with a partition element 670 above an aisle 671 (the rows of racks are not represented) .
  • the partition element provides for air along the length of the aisle 671, wherein in the embodiment shown via exit grates in the partition element 660 additional air is supplied at the right side of the aisle 671, whereby a cold air curtain (big arrow directed downwardly) is formed.
  • a cold air curtain big arrow directed downwardly
  • Fig. 7 shows an implementation wherein the air curtain is also formed as a substantially horizontal airflow.
  • air is supplied both vertically and horizontally.
  • the air curtain can also be formed by only a single horizontal airflow from one side or by two airflows from both opposite sides.
  • a combination of a vertical and one or two horizontal airflows can be used.
  • the air exit openings arranged at the sides are connected to an air duct provided in the partition element.
  • a cold air curtain, in casu an air curtain of cold air, is obtained with an (optionally horizontally and vertically adjustable) often elongated air exit opening, known in the technique as air grate.
  • This air exit opening 591 can be provided at the underside of the partition element 670 (cf. fig.
  • an air duct in fig. 7 the air duct is not illustrated separately
  • the partition element 670 may be formed of a single aperture 792; 793 or of more, sub- stantially connecting apertures, which embodiments are considered as equivalent.
  • an adjust ⁇ able valve or the like may be provided in order to control an air flow rate to be led through the aperture, without the need for an ac ⁇ tive component (a drive fan or the like) .
  • An air grate for this purpose is commercially available as such, for instance of the brand Trox, type VAT-DG 75x525mm and is marketed by Schilt Luchttechniek BV, Energyweg 29, Postbus 3, 4230 BA in Meerkerk (Netherlands) . Since the air grate produces a lower air resistance than the exit means (here the perforated textile cloth of partition element 670) a much larger air exit velocity is obtained by the air grate as a re ⁇ sult of which an air curtain is formed and a good separation of warm and cold air at the head of the aisle 671 is obtained.
  • the effect ob- tained by the use of the air curtain is a free access of service staff in the aisle 671 with which nevertheless also an uninterrupted constant supply of cooled air will take place towards the equipment arranged in the cabinets at both sides at the head of the row of cabinets with a suction of the cooling air from the aisle 671.
  • a feed pipe 672 for cold air which air originates from an air conditioning cabinet 673.
  • This comprises a supply opening 674 for air from the ICT room 660, which is adjustable using a valve 675.
  • There also is a supply opening 676 for outside air which preferably originates from a forest like environment and is situated (for the northern hemisphere) at the northern side of the ICT building 600.
  • Incoming air is filtered by means of a filter 678, led through a cooling section 679 (for instance a heat pump), fed once again through a filter 680 and channelled by an air pump 681 via the feed pipe 672 towards the partition element 670.
  • a cooling section 679 for instance a heat pump
  • an air pump 681 via the feed pipe 672 towards the partition element 670.
  • Reference number 691 refers to a lattice shielded against rain.
  • reference number 692 refers to a lattice.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

L'invention concerne un procédé de refroidissement d'une salle TIC, la salle TIC contenant au moins une rangée de baies continues de matériel TIC à refroidir, : - un couloir longeant un long côté de la rangée, - une paroi faisant face au long côté de la rangée de baies continues, et – un élément de séparation étant situé au-dessus du couloir, l'élément de séparation et la paroi maintenant l'air de refroidissement relativement froid sous l'élément de séparation séparé de l'air relativement chaud au-dessus de l'élément de séparation, l'air de refroidissement provenant du couloir, par un côté de la rangée de baies continues face au couloir, étant acheminé à travers des ouvertures dans les baies continues dans le but de refroidir le matériel TIC à refroidir et l'air chauffé dû au refroidissement s'échappant des baies par le côté de la rangée de baies continues opposé au couloir, l'élément de séparation comprenant une conduite d'alimentation en air de refroidissement, et l'air de refroidissement étant introduit dans le couloir par le dessus. Le procédé selon l'invention est caractérisé en ce qu'il comprend l'étape consistant à former un rideau d'air à proximité d'au moins une extrémité du couloir au moyen d'une ouverture d'échappement d'air raccordée à la conduite d'alimentation de manière à créer une barrière étanche entre le couloir et la salle TIC à l'extérieur du couloir. L'invention concerne également un élément de séparation pour une salle TIC, l'élément de séparation comprenant une conduite d'air.
PCT/NL2010/000026 2009-02-19 2010-02-19 Procédé de refroidissement d'une salle tic et élément de séparation associé Ceased WO2010095931A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL1036603 2009-02-19
NL1036603 2009-02-19
NL1036636A NL1036636C2 (nl) 2009-02-26 2009-02-26 Werkwijze voor het koelen van een ict ruimte, alsmede een scheidingselement.
NL1036636 2009-02-26

Publications (1)

Publication Number Publication Date
WO2010095931A1 true WO2010095931A1 (fr) 2010-08-26

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Family Applications (1)

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PCT/NL2010/000026 Ceased WO2010095931A1 (fr) 2009-02-19 2010-02-19 Procédé de refroidissement d'une salle tic et élément de séparation associé

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WO (1) WO2010095931A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012100482U1 (de) * 2012-02-14 2013-05-17 Weiss Klimatechnik Gmbh Klimatisierungsanordnung
JP5641130B2 (ja) * 2011-03-14 2014-12-17 富士電機株式会社 外気利用空調システム
JP2016196980A (ja) * 2015-04-03 2016-11-24 株式会社竹中工務店 空調システム
CN106403139A (zh) * 2016-11-14 2017-02-15 江苏中利石化设备有限公司 风帘隔温墙
US9901011B2 (en) 2015-11-04 2018-02-20 Rite-Hite Holding Corporation Cooling systems for devices arranged in rows
WO2018048804A1 (fr) * 2016-09-09 2018-03-15 Rite-Hite Holding Corporation Systèmes de refroidissement pour des dispositifs agencés en rangées
US11856735B2 (en) 2018-10-02 2023-12-26 Rite-Hite Holding Corporation Air barrier systems for data center zone containment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3329365A1 (de) * 1983-08-13 1985-02-28 Fa. Rud. Otto Meyer, 2000 Hamburg Verfahren zur kuehlung thermisch hochbelasteter raeume und anordnung zur durchfuehrung des verfahrens
WO1999063797A1 (fr) * 1998-06-02 1999-12-09 Ericsson Inc. Systeme et procede pour separer des flux d'air dans un systeme de refroidissement
US20040003617A1 (en) * 2002-05-17 2004-01-08 Chandler Michael S. Device and method for creating a horizontal air curtain for a cooler
US7430118B1 (en) * 2007-06-04 2008-09-30 Yahoo! Inc. Cold row encapsulation for server farm cooling system
US20080291626A1 (en) * 2007-05-23 2008-11-27 Sun Microsystems, Inc. Method and apparatus for cooling electronic equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3329365A1 (de) * 1983-08-13 1985-02-28 Fa. Rud. Otto Meyer, 2000 Hamburg Verfahren zur kuehlung thermisch hochbelasteter raeume und anordnung zur durchfuehrung des verfahrens
WO1999063797A1 (fr) * 1998-06-02 1999-12-09 Ericsson Inc. Systeme et procede pour separer des flux d'air dans un systeme de refroidissement
US20040003617A1 (en) * 2002-05-17 2004-01-08 Chandler Michael S. Device and method for creating a horizontal air curtain for a cooler
US20080291626A1 (en) * 2007-05-23 2008-11-27 Sun Microsystems, Inc. Method and apparatus for cooling electronic equipment
US7430118B1 (en) * 2007-06-04 2008-09-30 Yahoo! Inc. Cold row encapsulation for server farm cooling system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5641130B2 (ja) * 2011-03-14 2014-12-17 富士電機株式会社 外気利用空調システム
US9605855B2 (en) 2011-03-14 2017-03-28 Fuji Electric Co., Ltd. Air conditioning system using outside air
DE202012100482U1 (de) * 2012-02-14 2013-05-17 Weiss Klimatechnik Gmbh Klimatisierungsanordnung
JP2016196980A (ja) * 2015-04-03 2016-11-24 株式会社竹中工務店 空調システム
US9901011B2 (en) 2015-11-04 2018-02-20 Rite-Hite Holding Corporation Cooling systems for devices arranged in rows
US10709040B2 (en) 2015-11-04 2020-07-07 Rite-Hite Holding Corporation Cooling systems for devices arranged in rows
WO2018048804A1 (fr) * 2016-09-09 2018-03-15 Rite-Hite Holding Corporation Systèmes de refroidissement pour des dispositifs agencés en rangées
US10251312B2 (en) 2016-09-09 2019-04-02 Rite-Hite Holding Corporation Cooling systems for devices arranged in rows
EP3713382A1 (fr) * 2016-09-09 2020-09-23 Rite-Hite Holding Corporation Systèmes de refroidissement pour des dispositifs agencés en rangées
EP4236647A1 (fr) * 2016-09-09 2023-08-30 Rite-Hite Holding Corporation Systèmes de refroidissement pour dispositifs disposés en rangées
CN106403139A (zh) * 2016-11-14 2017-02-15 江苏中利石化设备有限公司 风帘隔温墙
US11856735B2 (en) 2018-10-02 2023-12-26 Rite-Hite Holding Corporation Air barrier systems for data center zone containment

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