US20110059687A1 - Data center, cooling system, and method of cooling information technology device - Google Patents

Data center, cooling system, and method of cooling information technology device Download PDF

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Publication number
US20110059687A1
US20110059687A1 US12/873,909 US87390910A US2011059687A1 US 20110059687 A1 US20110059687 A1 US 20110059687A1 US 87390910 A US87390910 A US 87390910A US 2011059687 A1 US2011059687 A1 US 2011059687A1
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United States
Prior art keywords
air
information technology
housing room
grille
floor
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.)
Abandoned
Application number
US12/873,909
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English (en)
Inventor
Tadashi Katsui
Junichi Ishimine
Seiichi Saito
Masahiro Suzuki
Ikuro NAGAMATSU
Yuji Ohba
Nobuyoshi Yamaoka
Akira Ueda
Yasushi Uraki
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Fujitsu Ltd
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Fujitsu Ltd
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Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Assigned to FUJITSU LIMITED reassignment FUJITSU LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SUZUKI, MASAHIRO, URAKI, YASUSHI, UEDA, AKIRA, ISHIMINE, JUNICHI, KATSUI, TADASHI, NAGAMATSU, IKURO, OHBA, YUJI, SAITO, SEIICHI, YAMAOKA, NOBUYOSHI
Publication of US20110059687A1 publication Critical patent/US20110059687A1/en
Abandoned legal-status Critical Current

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    • 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

Definitions

  • the embodiments discussed herein are directed to a data center, a cooling system, and a method of cooling an information technology device.
  • an air conditioning machine which takes in warm air and supplies cooling air is traditionally used to perform a cooling of IT devices.
  • a popularly-used air conditioning machine 52 takes in air discharged from an IT device mounted on a rack device 50 in a data center and supplies, after cooling, cooling air under a floor in the data center.
  • the IT device mounted in the rack device then takes in the cooling air supplied under the floor from its front surface by a fan and the like, makes the air pass through inside the device itself, and cools electronic devices including a central processing unit (CPU) and the like. After that, the IT device discharges air which is warmed due to the cooling of the electronic devices from its back surface. In this manner, cooling air and discharged air circulate depending on the air conditioning machine 52 and the cooling of the IT device in the rack device 50 is performed in the data center.
  • FIG. 10 illustrates an example of a circulation of cooling air and discharged air depending on an air conditioning machine arranged in a conventional data center.
  • FIG. 11 illustrates a housing room in a data center according to a conventional technique.
  • a plurality of rack devices 50 are arranged in the data center in such a way that air intake sides of IT devices face each other, in addition to a plurality of air conditioning machines 52 .
  • the IT devices can take in cooling air which is supplied under the floor from the air conditioning machines 52 via the grille.
  • the IT devices discharge air used for cooling electronic devices mounted in itself from its back surface.
  • a site where the cooling air concentrates is referred to as a cool air zone 60 and a site where the discharged air concentrates is referred to as a discharged air zone 70 .
  • the air conditioning machine 52 sometimes operates in conjunction with a temperature of air discharged from the IT device of which heat generation amount is large. In this case, the IT device of which heat generation amount is not large is cooled more than necessary, causing a failure of the IT device contrary to the intention.
  • a data center includes a housing room that houses an information technology device; an air conditioning machine that cools air in the housing room and supplies the air under a floor of the housing room; a grille that allows the air supplied under the floor to circulate in the housing room; and a rack device that houses the information technology device.
  • the rack device is arranged in such a way as to surround the grille, the information technology device is housed in the rack device in such a way as to take in the air from a space surrounded by the rack device via the grille and discharge air to the housing room, and the air conditioning machine is arranged at a side from which the information technology device discharges air.
  • a data center includes a housing room that houses an information technology device; an air conditioning machine that cools air in the housing room and supplies the air under a floor of the housing room; a grille that allows the air supplied under the floor to circulate in the housing room; and a rack device that houses the information technology device.
  • the rack device is arranged in such a way as to surround the air conditioning machine, the information technology device is housed in the rack device in such a way as to take in the air supplied under the floor via the grille and discharge air to an area surrounded by the rack device, and the air conditioning machine is arranged in the area surrounded by the rack device at a side from which the information technology device discharges air.
  • a data center includes a housing room that houses an information technology device; an air conditioning machine that cools air in the housing room and supplies the air under a floor of the housing room; a grille that allows the air supplied under the floor to circulate in the housing room; and a rack device that houses the information technology device.
  • the rack device is arranged in such a way as to divide the housing room into a first area and a second area, the grille is arranged in the first area, the information technology device is housed in the rack device in such a way as to take in the air via the grille arranged in the first area and discharge air to the second area, and the air conditioning machine is arranged in the second area.
  • FIG. 1 is a view, seen from above, of a housing room in a data center according to a first embodiment
  • FIG. 2 is a cross-sectional view a section of which is obtained by a cutting along a line A-A′ illustrated in FIG. 1 ;
  • FIG. 3 is a view, seen from above, of a housing room in a data center according to a second embodiment
  • FIG. 4 is a cross-sectional view a section of which is obtained by a cutting along a line B-B′ illustrated in FIG. 3 ;
  • FIG. 5 is a view, seen from above, of a housing room in a data center according to a third embodiment
  • FIG. 6 is a view, seen from above, of a housing room when a rack device 10 is arranged to form a rhombus shape;
  • FIG. 7 is a view, seen from above, of a housing room when a grille 7 and a rack device 10 are arranged in such a way as to be parallel to either direction of wall 5 ;
  • FIG. 8 illustrates an example of arranging a plate under a floor
  • FIG. 9 illustrates an example of arranging a plate on a floor
  • FIG. 10 illustrates an example of a circulation of cooling air and discharged air depending on an air conditioning machine arranged in a conventional data center
  • FIG. 11 illustrates a housing room in the data center according to the conventional technique.
  • FIG. 1 is a view, seen from above, of a housing room in a data center according to a first embodiment.
  • a housing room 2 in a data center is isolated from another housing room by being surrounded by a wall 5 and includes therein a grille 7 , a rack device 10 , an air conditioning machine 11 , and an entrance door 12 .
  • the grille 7 is arranged on a floor of the housing room 2 and has ventilation openings which allow air to circulate from a space under the floor to an inside of the housing room.
  • the rack device 10 is a device which houses therein a plurality of information technology (IT) devices 10 a and is arranged in such a way as to surround the grille 7 arranged under the floor of the housing room 2 . Air under the floor flows into the housing room 2 via the grille 7 , i.e., from a site of the grille 7 .
  • IT information technology
  • the IT device 10 a takes in, by a fan and the like, cooling air which is cool air supplied from the air conditioning machine 11 and cools electronic devices such as a central processing unit (CPU) and a large scale integration (LSI) which are provided inside the IT device 10 a .
  • the IT device 10 a then discharges air which is warmed due to the cooling of the interior electronic devices from its back surface.
  • the IT device 10 a has a light emitting diode (LED) which indicates a state of an electronic device housed therein and a state of a system provided by the IT device 10 a , and gives an alarm by turning on, for example, a red color LED in case of an abnormality.
  • the IT device 10 a is housed in the rack device 10 to take in air from a space surrounded by the rack device 10 via the grille 7 and discharge air into the housing room 2 .
  • the air conditioning machine 11 performs cooling by taking in air including the air discharged from the IT device 10 a in the housing room 2 and supplies, after the cooling, cooling air under the floor of the housing room 2 .
  • the air conditioning machine 11 is arranged at a side from which the IT device 10 a discharges air in the housing room 2 .
  • the entrance door 12 is a door used by a maintenance person who performs maintenance in the data center, such as a maintenance of the IT device 10 a housed in the rack device 10 , an expansion of the IT device 10 a , and an expansion of the rack device 10 itself.
  • the entrance door 12 is arranged alongside the rack device 10 .
  • the rack device 10 surrounds the grille 7 , the housed IT device 10 a is arranged in such a way that its air intake side faces the side of the grille 7 , and the air conditioning machine 11 is arranged in an area where discharged air of the IT device 10 a concentrates.
  • This configuration allows the rack device 10 to insulate a cool air zone 20 where cooling air flowing into the housing room 2 from the space under the floor via the grille 7 concentrates and a discharged air zone 30 where discharged air, which is warmed air after being used for cooling the IT device 10 a concentrates.
  • the IT device 10 a can cool interior electronic devices by taking in cooling air from the cool air zone 20 in which discharged air cannot be contained easily and the air conditioning machine 11 can take in discharged air from the IT device 10 a quickly.
  • an IT device can be safely cooled without a necessity of using a local cooling unit and a cooling efficiency in the data center can be enhanced.
  • the air intake side i.e., a front surface having the LED of the IT device 10 a is located at a side of the cool air zone 20 , a maintenance person can look over LEDs of all IT devices by entering the cool air zone 20 from the entrance door 12 , which leads to a prompt detection of an alarm.
  • FIG. 2 is a cross-sectional view a section of which is obtained by a cutting along a line A-A′ illustrated in FIG. 1 .
  • the cooling air supplied under the floor circulates in the housing room 2 via the grille 7 without mixing with discharged air and is taken in by the IT device 10 a housed in the rack device 10 .
  • the air (discharged air) discharged from the IT device 10 a is taken in by the air conditioning machine 11 without mixing with the cooling air and flowing under the floor. Therefore, the IT device 10 a can take in cooler air and moreover an accumulation of discharged air in the housing room 2 can be prevented.
  • an occurrence of a heat accumulated area in which discharged air is taken in by the IT device 10 a and therefore the IT device 10 a cannot be cooled can be prevented as much as possible.
  • FIG. 3 is a view, seen from above, of a housing room in a data center according to the second embodiment.
  • the rack device 10 is arranged in such a way as to surround the air conditioning machine 11
  • the IT device 10 a is housed in the rack device 10 in such a way as to take in air supplied under the floor via the grille 7 and discharge air to an area surrounded by the rack device 10
  • the air conditioning machine 11 is arranged in an area surrounded by the rack device 10 and at a side from which the IT device 10 a discharges air in such a way as to surround an air conditioning machine pipe space 11 a in which a pipe of the air conditioning machine is housed.
  • a front surface as an air intake side of the IT device 10 a faces the side of the grille 7 and a back surface as an air discharge side faces the side of the air conditioning machine 11 .
  • This arrangement allows the rack device 10 to insulate a cool air zone 20 where cooling air flowing into the housing room 2 from the space under the floor via the grille 7 concentrates and a discharged air zone 30 where discharged air, which is warmed air after being used for cooling the IT device 10 a concentrates.
  • an IT device can be safely cooled without a necessity of using a local cooling unit and a cooling efficiency in the data center can be enhanced.
  • the discharged air zone according to the second embodiment compared to the first embodiment, is an area surrounded by the rack device 10 and the air conditioning machine 11 is arranged in the discharged air zone, discharged air is more quickly taken in by the air conditioning machine 11 . Therefore, an increase in temperature in the entirety of the data center can be suppressed and a cooling efficiency can be enhanced, compared to the first embodiment.
  • FIG. 4 is a cross-sectional view a section of which is obtained by a cutting along a line B-B′ illustrated in FIG. 3 .
  • cooling air supplied under the floor circulates upward from the floor via the grille 7 at a neighborhood of the wall 5 . Therefore, the cooling air is supposed to pass under the floor of the discharged air zone and does not mix with discharged air.
  • the air (discharged air) discharged from the IT device 10 a is quickly taken in by the air conditioning machine 11 , the discharged air does not mix with the cooling air passing through the grille 7 .
  • This configuration allows more strongly preventing an occurrence of a heat accumulated area compared to the first embodiment.
  • FIG. 5 is a view, seen from above, of a housing room in a data center according to the third embodiment.
  • the grille 7 , the rack device 10 , and the air conditioning machine 11 are arranged in the housing room 2 in the data center according to the third embodiment in the same way as the first embodiment.
  • the rack device 10 surrounds the grille 7
  • the housed IT device 10 a is arranged in such a way that its air intake side faces the side of the grille 7
  • the air conditioning machine 11 is arranged in an area where discharged air of the IT device 10 a concentrates.
  • the rack device 10 allows insulation between a cool air zone 20 via the grille 7 and a discharged air zone 30 which is used by the IT device 10 a for the cooling.
  • the rack device 10 includes a high-heat-generating rack device 10 b which has a plurality of high-performance IT devices 10 a and of which heat generation amount is large, and a low-heat-generating rack device 10 c which has a plurality of comparatively-low-performance IT devices 10 a and of which heat generation amount is small, which is different from the first embodiment.
  • the high-heat-generating rack device 10 b discharges air of higher temperature than the low-heat-generating rack device 10 c.
  • the high-heat-generating rack device 10 b is arranged at a place closer to the air conditioning machine 11 as illustrated in FIG. 5 .
  • discharged air of higher temperature when discharged from the high-heat-generating rack device 10 b can be taken in quickly by the air conditioning machine 11 without filling the housing room 2 .
  • a cooling efficiency in the data center can further be enhanced and an improvement in temperature in the housing room 2 can be prevented, compared to the case in which the arrangement of the high-heat-generating rack device 10 b and the low-heat-generating rack device 10 c is not taken into consideration.
  • the embodiment is not limited thereto.
  • the grille 7 can arranged to form a rhombus shape and the rack device 10 can also be arranged to form a rhombus shape in such a way as to surround the grille 7 , as illustrated in FIG. 6 .
  • the shape is not limited to the rhombus and may be any shapes such as a round shape and a polygonal shape as long as the cool air zone 20 and the discharged air zone 30 can be insulated.
  • FIG. 6 is a view, seen from above, of a housing room when the rack device 10 is arranged to form a rhombus shape.
  • the rack device 10 is not necessarily arranged in such a way as to surround the grille 7 .
  • the grille 7 and the rack device 10 can be arranged in such a way as to be parallel to either direction of the wall 5 , as illustrated in FIG. 7 .
  • This arrangement allows a division into the cool air zone 20 and the discharged air zone 30 .
  • FIG. 7 is a view, seen from above, of a housing room when the grille 7 and the rack device 10 are arranged in such a way as to be parallel to either direction of wall 5 .
  • the IT device 10 a is housed in the rack device 10 so that its air intake side faces the side of the grille 7 and takes in cooling air from the grille 7 .
  • the air conditioning machine 11 is arranged at a side of the air discharge from the IT device 10 a , i.e., in the discharged air zone 30 , which is an area opposite to the grille 7 with respect to the rack device 10 .
  • This arrangement allows dividing the area into one cool air zone 20 and two discharged air zones 30 . Therefore, an IT device can be safely cooled and a cooling efficiency in a data center can be enhanced similarly to the first to fourth embodiments.
  • a plate 7 a is arranged under the floor where the grille 7 is arranged in such a way as to be perpendicular to a surface of the grille 7 at a side opposite to the rack device 10 , as illustrated in FIG. 8 .
  • the cooling air under the floor goes upward by hitting the plate 7 a under the grille 7 .
  • all the cooling air supplied under the floor from the air conditioning machine 11 can circulate in the housing room 2 via the grille 7 and be fed efficiently to the cool air zone 20 .
  • FIG. 8 illustrates the example of arranging a plate under the floor.
  • a plate 7 b is arranged on the floor where the grille 7 is arranged in such a way as to be perpendicular to a surface of the grille 7 at a side opposite to the rack device 10 , as illustrated in FIG. 9 .
  • This arrangement allows preventing the cooling air circulating from the space under the floor to the inside of the housing room 2 via the grille 7 from circulating to a direction opposite to the rack device 10 , i.e., to a direction away from the rack device 10 .
  • the cooling air circulating in the housing room 2 is made to circulate to a side of the rack device 10 , i.e., to a direction to the rack device 10 .
  • the IT device 10 a housed in the rack device 10 can take in the cooling air efficiently.
  • any materials such as a veneer plate, an acryl plate, and a concrete partition may be used.
  • FIG. 9 illustrates the example of arranging a plate on the floor.

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
US12/873,909 2009-09-04 2010-09-01 Data center, cooling system, and method of cooling information technology device Abandoned US20110059687A1 (en)

Applications Claiming Priority (2)

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JP2009-205327 2009-09-04
JP2009205327A JP5597957B2 (ja) 2009-09-04 2009-09-04 データセンター、冷却システムおよびｉｔ機器の冷却方法

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US20110303406A1 (en) * 2010-06-11 2011-12-15 Fujitsu Limited Air-conditioning system and control device thereof
US20120164929A1 (en) * 2010-12-27 2012-06-28 Gary Meyer Directional flow raised floor air-grate
CN104394678A (zh) * 2014-12-12 2015-03-04 北京百度网讯科技有限公司 一种用于标准服务器的装置及其制造方法
CN105094254A (zh) * 2015-08-07 2015-11-25 嘉兴市锐贝机械设备有限公司 一种用作网络服务器且可快速降温的柜式计算机装置
US9732972B2 (en) 2012-03-30 2017-08-15 Fujitsu Limited Information processing device and controlling method

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CN102955536A (zh) * 2011-08-23 2013-03-06 鸿富锦精密工业（深圳）有限公司 货柜数据中心
WO2013062539A1 (fr) * 2011-10-26 2013-05-02 Hewlett-Packard Development Company, L.P. Dispositif de refroidissement d'un composant électronique dans un centre informatique
DE102012001510A1 (de) 2012-01-27 2013-08-01 Bernd Schenk Konstruktion für ein Rechenzentrum
JP2014127024A (ja) * 2012-12-26 2014-07-07 Hitachi Systems Ltd ラックキャッピング装置
CN105159415A (zh) * 2015-08-07 2015-12-16 诸暨市丝百内纺织品有限公司 一种新型柜式计算机装置

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US20110303406A1 (en) * 2010-06-11 2011-12-15 Fujitsu Limited Air-conditioning system and control device thereof
US20120164929A1 (en) * 2010-12-27 2012-06-28 Gary Meyer Directional flow raised floor air-grate
US8641492B2 (en) * 2010-12-27 2014-02-04 Gary Meyer Directional flow raised floor air-grate
US9732972B2 (en) 2012-03-30 2017-08-15 Fujitsu Limited Information processing device and controlling method
CN104394678A (zh) * 2014-12-12 2015-03-04 北京百度网讯科技有限公司 一种用于标准服务器的装置及其制造方法
CN105094254A (zh) * 2015-08-07 2015-11-25 嘉兴市锐贝机械设备有限公司 一种用作网络服务器且可快速降温的柜式计算机装置

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JP2011059741A (ja) 2011-03-24
JP5597957B2 (ja) 2014-10-01
EP2293659A2 (fr) 2011-03-09
EP2293659A3 (fr) 2011-07-13
CN102014596A (zh) 2011-04-13
CN102014596B (zh) 2013-06-12

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Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KATSUI, TADASHI;ISHIMINE, JUNICHI;SAITO, SEIICHI;AND OTHERS;SIGNING DATES FROM 20100816 TO 20100818;REEL/FRAME:024932/0084

STCB Information on status: application discontinuation

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