JP2014031974A - Air conditioning system for information processing apparatus room - Google Patents

Air conditioning system for information processing apparatus room Download PDF

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JP2014031974A
JP2014031974A JP2012173321A JP2012173321A JP2014031974A JP 2014031974 A JP2014031974 A JP 2014031974A JP 2012173321 A JP2012173321 A JP 2012173321A JP 2012173321 A JP2012173321 A JP 2012173321A JP 2014031974 A JP2014031974 A JP 2014031974A
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air
information processing
rack
rectifying member
processing equipment
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JP6081730B2 (en
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Kentaro Kimura
健太郎 木村
Katsuhiko Shibata
克彦 柴田
Naoki Aizawa
直樹 相澤
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Takasago Thermal Engineering Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide an air conditioning system for an information processing apparatus room, capable of appropriately supplying cooled air to a rack accommodating an information processing apparatus and providing high maintainability in a light permeability area.SOLUTION: An air conditioning system for air-conditioning an information processing apparatus room in which racks accommodating information processing apparatuses are arranged in rows, includes an air blowout port which opens toward the racks in the information processing apparatus room and blows out cooled air for cooling the information processing apparatuses into the information processing apparatus room. The rows of the racks are arranged in parallel so that air intake faces of the rows of the racks face each other. An area between the air intake faces facing each other, to which the cooled air is supplied, serves as a cool air area. The air conditioning system also includes: a flow adjust member which is provided in an end in a longitudinal direction of the cool air area when an arrangement direction of the racks is defined as a longitudinal, has a plurality of faces parallel to the arrangement direction of the racks, and adjusts a flow direction of the cooled air flowing into the cool air area; and a resistance body provided in the end in the longitudinal direction of the cool air area and combined with the flow adjust member in parallel.

Description

本発明は、情報処理機器室の空調システムに関する。   The present invention relates to an air conditioning system for an information processing equipment room.

情報処理技術の発展に伴い、情報処理機器の発熱量は増大の一途を辿っている。これに伴い、情報処理機器を冷却する情報処理機器室の空調システムの処理量も増大しており、情報処理機器を効率的に冷却できる空調技術の開発が行われている。   With the development of information processing technology, the amount of heat generated by information processing equipment has been increasing. Along with this, the processing amount of the air conditioning system in the information processing equipment room for cooling the information processing equipment is also increasing, and the development of air conditioning technology capable of efficiently cooling the information processing equipment is being carried out.

ところで、情報処理機器室には、情報処理機器を収容したラックが整列しているため、空調の吹出口から流れる気流がラックやラックの端部で偏向し、偏流を発生させる場合や、気流がラックの端部で剥離し、縮流を発生させる場合がある。この偏向や偏流の対策を実施しない場合には、熱気の再循環等による局所的なヒートスポットの形成を許容することになる。局所的なヒートスポットを許容する場合、ヒートスポット付近の情報処理機器が熱暴走や保護作用に起因する停止などの甚大な二時的被害を起こさないように、情報処理機器室全体の温度を低く設定する運用がなされており、消費エネルギー増大の要因となっている。   By the way, in the information processing equipment room, racks that contain information processing equipment are arranged, so that the airflow flowing from the air conditioning outlet is deflected at the rack or the end of the rack to generate a drift, or the airflow is It may peel at the end of the rack and cause contraction. If this countermeasure for deflection and drift is not implemented, local heat spot formation by hot air recirculation or the like is allowed. When local heat spots are allowed, the temperature of the information processing equipment room should be kept low so that information processing equipment near the heat spots will not cause serious temporary damage such as thermal runaway or stoppage due to protective action. Operation to set is done, and it becomes a factor of increase in energy consumption.

局所的なヒートスポットを防止するため、本出願人は、特許文献1のシステムを提案した。特許文献1のシステムでは、情報処理機器室の内部を冷気が吹き出す吹出口がある第一の領域とラックの吸気面がある第二の領域に分けるように整流部材で仕切ることにより、第一の領域と第二の領域との間に通気抵抗を与えて冷気の流れを整え、渦や乱流の発生を抑えてヒートスポットの発生を防止する。   In order to prevent local heat spots, the present applicant has proposed the system of Patent Document 1. In the system of Patent Document 1, the inside of the information processing equipment room is partitioned by a rectifying member so as to be divided into a first region having a blow-out port from which cool air blows and a second region having an intake surface of the rack. A ventilation resistance is provided between the region and the second region to regulate the flow of cold air, and the generation of vortices and turbulence is suppressed to prevent the generation of heat spots.

特開2012−21133号公報JP 2012-21133 A

上述のように特許文献1のシステムでは、第一の領域と第二の領域とを整流部材で仕切るので、吹出口がある第一の領域から見て第二の領域の周囲が整流部材で囲われることになる。このため第一の領域から第二の領域への光透過性が低く、照明の設置や防犯カメラを設置する場合に制約を受けることがある。   As described above, in the system of Patent Document 1, since the first region and the second region are partitioned by the rectifying member, the periphery of the second region is surrounded by the rectifying member when viewed from the first region where the air outlet is located. It will be. For this reason, the light transmittance from the 1st field to the 2nd field is low, and restrictions may be received when installing lighting or installing a security camera.

また、整流部材としてフィルタを用いた場合、埃等の詰まりによる性能低下を防ぐため、フィルタの定期的な清掃や交換作業等を行うことが望ましく、保守性が低下することがある。さらに、冷気の流入方向の偏流により端部でヒートスポットが生ずる。   In addition, when a filter is used as the rectifying member, it is desirable to periodically clean or replace the filter in order to prevent performance degradation due to clogging with dust and the like, and maintainability may be reduced. Furthermore, a heat spot is generated at the end due to the drift in the inflow direction of the cold air.

そこで、本願は、情報処理機器を収容したラックへ冷気を適正に供給可能で、且つ光透過性或は保守性の高い情報処理機器室の空調システムを提供することを課題とする。   Accordingly, an object of the present application is to provide an air conditioning system for an information processing equipment room that can appropriately supply cold air to a rack that accommodates information processing equipment and that is highly light transmissive or maintainable.

上記課題を解決するため、本発明の空調システムは、
情報処理機器を収容するラックを列状に並べて設置する情報処理機器室の空調を行う空調システムであって、
前記情報処理機器室内において前記ラックへ向けて開口する、前記情報処理機器を冷却するための冷気を前記情報処理機器室内へ吹き出す空気吹出口と、
前記ラックの列の吸気面を対向させて前記ラック列を並設し、対向する前記吸気面の間の冷気が供給される領域を冷気領域とし、前記ラックの並び方向を長手とする前記冷気領域の長手方向端部に設けられ、前記ラックの並び方向と平行な面を複数有して前記冷気領域へ流入する冷気の流入方向を調整する整流部材と、
前記冷気領域の長手端部に、前記整流部材と平行に組み合わせて設けられた抵抗体とを備え、
前記抵抗体が、当該抵抗体及び前記整流部材を通過して前記冷気領域へ流入する冷気の通気抵抗を前記整流部材単体よりも高くして前記冷気領域へ流入する冷気の流速を調整する。
In order to solve the above problems, the air conditioning system of the present invention is:
An air conditioning system that performs air conditioning of an information processing equipment room in which racks that contain information processing equipment are arranged in a row,
An air outlet that opens toward the rack in the information processing equipment room and blows out cool air for cooling the information processing equipment into the information processing equipment room;
The rack rows are arranged side by side with the air intake surfaces of the rack rows facing each other, a region to which cool air is supplied between the air intake surfaces facing each other is defined as a cold air region, and the cold air region having a longitudinal arrangement direction of the racks A rectifying member that is provided at a longitudinal end portion of the rack and has a plurality of surfaces parallel to the arrangement direction of the racks, and adjusts the inflow direction of the cool air flowing into the cool air region
A resistor provided in combination with the straightening member at the longitudinal end of the cold air region,
The resistor adjusts the flow rate of the cool air flowing into the cool air region by making the ventilation resistance of the cool air flowing into the cool air region through the resistor and the straightening member higher than that of the rectifier member alone.

前記整流部材が、前記ラックの吸気面と平行な羽板を有するルーバであっても良い。   The rectifying member may be a louver having a slat parallel to the intake surface of the rack.

前記ルーバが、前記羽板を平行に複数備え、当該羽板の設置間隔が、前記ラックの並び方向における当該羽板の幅より狭くても良い。   The louver may include a plurality of the blades in parallel, and the installation interval of the blades may be narrower than the width of the blades in the arrangement direction of the racks.

前記整流部材の少なくとも一部が、開閉可能な扉として構成されても良い。   At least a part of the flow regulating member may be configured as an openable / closable door.

前記整流部材が、上部整流部材と下部整流部材に分割され、前記上部整流部材が天井面から前記ラック高さまでに位置し、前記下部整流部材が前記ラック高さから床面までに位置し、前記下部整流部材と前記抵抗体とを組み合わせて前記扉とされても良い。このとき下部整流部材は平面的には冷気領域との区画にもなり、下部整流部材が冷気領域の入口を構成し、抵抗体が冷気領域の端部に接する構成とすることができる。   The rectifying member is divided into an upper rectifying member and a lower rectifying member, the upper rectifying member is located from the ceiling surface to the rack height, and the lower rectifying member is located from the rack height to the floor surface, The lower rectifying member and the resistor may be combined to form the door. At this time, the lower rectifying member can also be divided into a cool air region in a plan view, and the lower rectifying member can constitute an inlet of the cold air region, and the resistor can be in contact with the end of the cold air region.

前記空気吹出口が、水平方向に異なる位置に複数設けられ、前記複数の空気吹出口のうち、一部の空気吹出口から冷気が吹き出されても良い。   A plurality of the air outlets may be provided at different positions in the horizontal direction, and cool air may be blown out from some of the air outlets.

本発明によれば、情報処理機器を収容したラックへ冷気を適正に供給可能で、且つ光透過性の高い情報処理機器室の空調システムを提供可能である。   ADVANTAGE OF THE INVENTION According to this invention, cold air can be supplied appropriately to the rack which accommodated the information processing apparatus, and the air conditioning system of the information processing apparatus room with high light transmittance can be provided.

実施形態1に係るデータセンタの構成図である。1 is a configuration diagram of a data center according to Embodiment 1. FIG. 還気が流れる経路を示した図である。It is the figure which showed the path | route through which return air flows. 空調システムの一部の配置を示す平面図である。It is a top view which shows some arrangement | positioning of an air conditioning system. 第一整流部材の分解斜視図である。It is a disassembled perspective view of a 1st baffle member. 第一整流部材の構成例を示す図である。It is a figure which shows the structural example of a 1st rectification | straightening member. 第二実施形態に係るデータセンタの構成図である。It is a block diagram of the data center which concerns on 2nd embodiment. コールドアイル内側から見た第一整流部材と第二整流部材の図である。It is a figure of the 1st rectification member and the 2nd rectification member seen from the cold aisle inside. ルーバの説明図である。It is explanatory drawing of a louver. 冷気が流れる経路を示した図である。It is a figure showing a course through which cold air flows. フラットパネルの機能の図である。It is a figure of the function of a flat panel. 整流部材が無い場合のシミュレーション結果を示す図である。It is a figure which shows the simulation result when there is no rectifying member. 整流部材として抵抗体とガラリを用いた場合のシミュレーション結果を示す図である。It is a figure which shows the simulation result at the time of using a resistor and a gallery as a rectification | straightening member. 実施形態1の整流部材を用いた場合のシミュレーション結果を示す図である。It is a figure which shows the simulation result at the time of using the rectification | straightening member of Embodiment 1. FIG. 実施形態2に係る整流部材の構成例を示す図である。It is a figure which shows the structural example of the rectification | straightening member which concerns on Embodiment 2. FIG.

〈実施形態1〉
図1は、第一実施形態に係る空調システム100を配置したデータセンタ101の構成図、図2は、還気が流れる経路を示した図、図3は、空調システム100の一部の配置を示す平面図である。
<Embodiment 1>
FIG. 1 is a configuration diagram of a data center 101 in which an air conditioning system 100 according to the first embodiment is arranged, FIG. 2 is a diagram showing a path through which return air flows, and FIG. 3 is a partial arrangement of the air conditioning system 100. FIG.

データセンタ(情報処理機器室)101には、図1に示すように、各種の演算処理やデータベースの管理を行なうサーバや通信機等の情報処理機器が収容されたラック102がサーバールーム103に多数並んでいる。また、サーバールーム103には、各ラック102へ供給する冷気を生成する空調ユニット104が多数設けられている。   In the data center (information processing equipment room) 101, as shown in FIG. 1, a server room 103 has a large number of racks 102 in which information processing equipment such as servers and communication devices for performing various arithmetic processes and database management are accommodated. Are lined up. The server room 103 is provided with a large number of air conditioning units 104 that generate cool air to be supplied to each rack 102.

各ラック102には、情報処理機器を冷却する冷却ファンが設けられており、ラックの正面が吸気面となり、他方が排気面となるように構成されている。各ラック102の中の情報処理機器の冷却ファンは、ラック内に収容されている情報処理機器の負荷状態や吸込み温度に応じて時々刻々と変化するように回転数が制御されるものであってもよいし、一定の回転数で動くものであってもよい。なお、情報処理機器が据え付けられていない等の理由により、ラック102内や隣接するラック102間に隙間があるような場合は、暖気の回り込みを防ぐようなパネル等で隙間を塞ぐことが好ましい。   Each rack 102 is provided with a cooling fan for cooling the information processing device, and is configured such that the front surface of the rack serves as an intake surface and the other serves as an exhaust surface. The cooling fan of the information processing device in each rack 102 is controlled in rotational speed so as to change every moment according to the load state and suction temperature of the information processing device accommodated in the rack. Alternatively, it may move at a constant rotational speed. When there is a gap in the rack 102 or between adjacent racks 102 because the information processing device is not installed, it is preferable to close the gap with a panel or the like that prevents the warm air from flowing around.

空調ユニット104は、クーリングコイルと電動ファンとを内蔵し、サーバールーム103の空気を冷やす。   The air conditioning unit 104 includes a cooling coil and an electric fan, and cools the air in the server room 103.

本実施形態1に係るデータセンタ101では、コンクリートスラブ105Bとサーバールーム103との間には、床面106が設けられており、二重床構造とし、コンクリートスラブ105Bと床面106との間の空間を冷気の通路としている。なお、これに限らず、コンクリートスラブ105Bによって床面106が形成された床下空間が無い構造としても良い。ここで各ラック102は床面106に据え付けられている。   In the data center 101 according to the first embodiment, a floor surface 106 is provided between the concrete slab 105B and the server room 103, so that a double floor structure is provided, and between the concrete slab 105B and the floor surface 106 is provided. The space is a cool air passage. However, the present invention is not limited to this, and a structure without the underfloor space in which the floor surface 106 is formed by the concrete slab 105B may be used. Here, each rack 102 is installed on the floor surface 106.

コンクリートスラブ105Uとサーバールーム103との間には、天井ボード107が設けられており、二重天井構造になっている。そこで、空調ユニット104は、図2に示すように、上面に設けられた開口より、天井ボード107とコンクリートスラブ105Uとの間に形成される天井裏の空間108Uから各ラック102の排気を吸引して冷却する。なお、図1には、データセンタ101の一階分の構成を示したが、図1の構成が複数階にあってデータセンタを構成しても良い。   A ceiling board 107 is provided between the concrete slab 105U and the server room 103, and has a double ceiling structure. Therefore, as shown in FIG. 2, the air conditioning unit 104 sucks the exhaust of each rack 102 from the space 108U behind the ceiling formed between the ceiling board 107 and the concrete slab 105U through an opening provided on the upper surface. Cool down. Although FIG. 1 shows the structure of the first floor of the data center 101, the structure of FIG.

そして、各ラック102が整列したラック列109の端部側壁から見て正面(例えば、サーバールーム103の内壁近傍)に設けられた吹出口104Aより、冷却した空気をサーバールーム103内へ送る。なお、空調ユニット104は、コイルとファンがそれぞれ別のケーシングに納まり、両者がダクトで接続されたものであってもよい。また、空調ユニット104は、天井吊り下げ式あるいは天井埋め込み式であってもよいし、別室に据え付けて吹出口だけダクトでサーバールーム103まで延長してもよい。この場合、空調ユニット104の吹出口は、天井ボード107に設けられ、天井から吹出すようになっていてもよい。すなわちラック列間上部以外に吹出口、ラック列間床部に排気口を設けて床下チャンバーを還気風道としたシステムや、ラック列間床面以外の床面に吹出口、ラック列の排気面を対向させて非通気性ダクトを天井チャンバーに連通させて還気経路としたシステムにも、本発明は適用できる。   Then, the cooled air is sent into the server room 103 from the air outlet 104A provided on the front surface (for example, in the vicinity of the inner wall of the server room 103) as viewed from the end side wall of the rack row 109 in which the racks 102 are aligned. The air conditioning unit 104 may be one in which a coil and a fan are housed in separate casings, and both are connected by a duct. The air conditioning unit 104 may be a ceiling-suspended type or a ceiling-embedded type, or may be installed in a separate room and extended to the server room 103 by a duct only at the air outlet. In this case, the air outlet of the air conditioning unit 104 may be provided on the ceiling board 107 so as to blow out from the ceiling. In other words, there is a system in which a blower outlet is provided in addition to the upper part between the rack rows, an exhaust port is provided in the floor between the rack rows, and the underfloor chamber is used as a return air duct. The present invention can also be applied to a system in which a non-breathable duct is communicated with a ceiling chamber and is set as a return air path.

空調ユニット104は、冗長性を有するように複数台設けられている。本実施形態1では、図3に示すように4列のラック列109に対して、3台の空調ユニットを設けている。各空調ユニット104は、2台で4列のラック列109を冷却する能力を有し、1台の空調ユニット104が冗長となっている。即ち、故障やメンテナンスによって、3台のうち1台の空調ユニット104が停止した場合、残りの2台の空調ユニット104で運転を
行う。即ち、空調ユニット104の空気吹出口104Aが、水平方向に異なる位置に複数設けられ、一部の空調ユニット104が停止した場合、残りの空調ユニット104の空気吹出口104Aから冷気が吹き出されることになる。このため、全ての空気吹出口104Aから冷気が吹き出される場合よりも気流が乱れることが考えられるが、本実施形態1の空調システム100では、後述のように整流部材によって気流の乱れの影響が抑えられ、ホットスポットの発生が防止される。なお、図3は、データセンタ内に設置されたラック列109と空調ユニット104の一部を示す図であり、データセンタ内のラック列109と空調ユニット104の配置がラック列4列と空調ユニット3台に限定されるものではない。例えば、本実施形態1では、この割合で多数のラック列109と空調ユニット104がデータセンタ101内に設けられている。また、ラック列109と空調ユニット104の割合は、これに限らず、1列のラック列109に含まれるラック102の数や空調ユニット104の能力などの条件に応じて任意に設定できる。
A plurality of air conditioning units 104 are provided so as to have redundancy. In the first embodiment, as shown in FIG. 3, three air conditioning units are provided for the four rack rows 109. Each air conditioning unit 104 has the ability to cool the four rack rows 109 by two, and one air conditioning unit 104 is redundant. That is, when one of the three air-conditioning units 104 stops due to failure or maintenance, the remaining two air-conditioning units 104 are operated. That is, when a plurality of air outlets 104A of the air conditioning units 104 are provided at different positions in the horizontal direction and some of the air conditioning units 104 are stopped, cold air is blown out from the air outlets 104A of the remaining air conditioning units 104. become. For this reason, it is conceivable that the airflow is more distorted than when the cold air is blown out from all the air outlets 104A. It is suppressed and the occurrence of hot spots is prevented. FIG. 3 is a diagram showing a part of the rack row 109 and the air conditioning unit 104 installed in the data center, and the arrangement of the rack row 109 and the air conditioning unit 104 in the data center is 4 rack rows and the air conditioning unit. It is not limited to three. For example, in the first embodiment, a large number of rack rows 109 and air conditioning units 104 are provided in the data center 101 at this ratio. The ratio between the rack row 109 and the air conditioning unit 104 is not limited to this, and can be arbitrarily set according to conditions such as the number of racks 102 included in one rack row 109 and the capacity of the air conditioning unit 104.

データセンタ101は、各ラック102へ冷気が効率的に供給されるよう、一つのラック列109を構成する各ラック102の吸気面と排気面の向きが揃えられている。そして、対峙する2つのラック列109が、共に吸気面あるいは排気面で向き合うように配置される。各ラック102がこのように設置されていることにより、各ラック列109の間には、冷気が流れる通路と暖気が流れる通路とが交互に形成されることになる。以下、吸気面が向かい合う一対のラック列109に囲まれた、冷気が流れる通路(冷気領域)をコールドアイルCといい、排気面が向かい合う一対のラック列109によって囲まれた、暖気が流れる通路をホットアイルHという。なお、コールドアイルCは保守員の通路や作業空間にもなる。   In the data center 101, the directions of the intake surface and the exhaust surface of each rack 102 constituting one rack row 109 are aligned so that the cool air is efficiently supplied to each rack 102. The two rack rows 109 facing each other are arranged so as to face each other on the intake surface or the exhaust surface. By installing each rack 102 in this way, a path through which cool air flows and a path through which warm air flows are alternately formed between the rack rows 109. Hereinafter, a passage (cold air region) in which cool air flows surrounded by a pair of rack rows 109 facing the intake surface is referred to as a cold aisle C, and a passage in which warm air flows surrounded by a pair of rack rows 109 facing the exhaust surfaces. This is called Hot Isle H. The cold aisle C also serves as a maintenance worker's passage and work space.

一つのホットアイルHを挟む2つのラック列109の両端間や、ラック列109と天井ボード107との間には、ホットアイルHとコールドアイルCとを隔離する非通気性の仕切板110が、例えばラック102の上端と天井ボード107の下端に接してラック列109に沿って連続的に立設されている。天井ボード107のうちホットアイルHの上側の部分は開口しているため、仕切板110によって囲まれたホットアイルH内の暖気は、コールドアイルC側へ回り込むことなく天井裏の空間108Uへ流れることになる。   A non-breathable partition plate 110 that separates the hot aisle H and the cold aisle C is provided between both ends of the two rack rows 109 sandwiching one hot aisle H or between the rack row 109 and the ceiling board 107. For example, it is erected continuously along the rack row 109 in contact with the upper end of the rack 102 and the lower end of the ceiling board 107. Since the upper part of the hot aisle H in the ceiling board 107 is open, the warm air in the hot aisle H surrounded by the partition plate 110 flows to the space 108U behind the ceiling without going around to the cold aisle C side. become.

即ち、ラック列109の空調ユニット104から吹き出された冷気がラック列109の吸気面に達するまでに通る領域と、ラック列109から排気された暖気が空調ユニット104へ戻るまでに通る領域とが仕切られている。   That is, the area through which the cool air blown from the air conditioning unit 104 in the rack row 109 passes until it reaches the intake surface of the rack row 109 is separated from the area through which the warm air exhausted from the rack row 109 returns to the air conditioning unit 104. It has been.

コールドアイルCは、ラック102の並び方向を長手とし、空調ユニット104で温調され例えばサーバルーム103の壁面に設けた吹出口104Aから水平に給気された冷気が、コールドアイルCの長手端部から流入する。   In the cold aisle C, the longitudinal direction of the cold aisle C is the cold air that is adjusted in temperature by the air conditioning unit 104 and supplied horizontally from the air outlet 104A provided on the wall surface of the server room 103, for example. Inflow from.

本実施形態では、コールドアイルCの長手方向端部に、ラック102の並び方向と平行な面を複数有してコールドアイルCへ流入する冷気の流れ方向と流速を調整する第一整流部材111を備える。また、コールドアイルC上部、例えばコールドアイルC上部のラック吸気面と面一のコールドアイル側面にコールドアイルCへ流入する冷気の流れ方向を調整する第二整流部材112を備える。   In the present embodiment, the first rectifying member 111 that has a plurality of surfaces parallel to the arrangement direction of the racks 102 at the longitudinal end portion of the cold aisle C and adjusts the flow direction and flow velocity of the cold air flowing into the cold aisle C is provided. Prepare. Further, a second rectifying member 112 that adjusts the flow direction of the cold air flowing into the cold aisle C is provided on the cold aisle C, for example, on the side of the cold aisle that is flush with the rack intake surface of the cold aisle C.

ここで第一整流部材111は、図4に示すようにコールドアイルCへ流入する冷気の方向を整えるルーバ1Aと、コールドアイルCへ流入する冷気の流速を抑える抵抗体1Bとを、ここでは両者が接する形態で備える。なお、ルーバ1Aと抵抗体1Bは、コールドアイルCへ流入する冷気がルーバ1A及び抵抗体1Bを通過するように組み合わせた構成であれば良く、例えば、所定距離(10cm以内)離間して設けられても良い。   Here, the first rectifying member 111 includes a louver 1A that adjusts the direction of the cold air flowing into the cold aisle C and a resistor 1B that suppresses the flow rate of the cold air flowing into the cold aisle C, as shown in FIG. It is provided in the form that touches. The louver 1A and the resistor 1B may be configured so that the cold air flowing into the cold aisle C passes through the louver 1A and the resistor 1B. For example, the louver 1A and the resistor 1B are provided separated by a predetermined distance (within 10 cm). May be.

ルーバ1Aは、ラック102の吸気面と平行な平板状の羽板を複数備え、羽板間を通りコールドアイルCへ流入する冷気がラック102の吸気面と平行になるように冷気の流入方向を整える。これにより空調ユニット104が一台停止して冷気の吹き出す位置に偏りがある場合でも、偏流を抑えることができる。すなわち故障や保守等により空調ユニット104が停止する場合には全台運転を想定した設計時点の状態よりも気流が乱れ、風量・流れのベクトルが変わる。ルーバ1Aはこれを規制してコールドアイルCに同一ベクトルの冷気を導く。なお、ルーバ1Aの羽板は、平行に固定されたものに限らない。例えばルーバ1Aの羽板の角度が可動であって、保守員や台車等の接触で一時的に羽根が平行状態でなくなることや、サーバの低負荷時に一時的にサーバの中心側に向けて羽根を絞ることがあっても、定常運転時に羽板が略平行となる設備は、本発明を採用しているといえる。ここで平行とは、厳密に平行であることに限らず、冷気を吸気面と略平行に導くことができる程度であれば良い。   The louver 1A includes a plurality of flat blades parallel to the intake surface of the rack 102, and the inflow direction of the cold air is set so that the cold air flowing between the blades and flowing into the cold aisle C is parallel to the intake surface of the rack 102. Arrange. Thereby, even when one air-conditioning unit 104 stops and the position where the cold air blows out is uneven, the drift can be suppressed. That is, when the air-conditioning unit 104 stops due to failure or maintenance, the airflow is more disturbed than the design state assuming all-unit operation, and the airflow / flow vectors change. The louver 1A regulates this and guides cold air of the same vector to the cold aisle C. In addition, the louver of 1 A of louvers is not restricted to what was fixed in parallel. For example, the angle of the louver of the louver 1A is movable, and the blade is temporarily not in a parallel state due to contact with a maintenance worker or a carriage, or the blade is temporarily directed toward the center of the server when the server is under a low load. Even if it is narrowed down, it can be said that the equipment in which the slats are substantially parallel during steady operation adopts the present invention. Here, “parallel” is not limited to being strictly parallel, but may be any degree as long as the cool air can be guided substantially parallel to the intake surface.

抵抗体1Bは、空調ユニット104から吹出る空気の流速が速い事により、ラック102の吸気面側で静圧が低下したり乱流が形成されたりしてラック102内への冷気の吸込み不良が生じるのを防ぐ目的で設置される。また、抵抗体1Bは、ラック102が設置される床面からラック上面までの高さ(ラック高さ)に設置される。   The resistor 1B has a high flow rate of air blown from the air conditioning unit 104, so that static pressure is reduced or turbulent flow is formed on the intake surface side of the rack 102, which causes poor intake of cold air into the rack 102. It is installed for the purpose of preventing it from occurring. The resistor 1B is installed at a height (rack height) from the floor surface on which the rack 102 is installed to the rack upper surface.

抵抗体1Bは、空調ユニット104からコールドアイルCへ流れる冷気の通路に通気抵抗を生じさせ、第一整流部材111のラック高さまでの部分の通気抵抗が、ラック高さより上の部分や第二整流部材112の通気抵抗と比べて高くなるものであれば良い。例えば、抵抗体1Bは、フィルタやパンチング板、網、布、格子、ルーバ或いはこれらの積層体、並びに空調の吹出し口等に用いられるレジスタなどを適用できる。   The resistor 1B generates a ventilation resistance in the passage of the cold air flowing from the air conditioning unit 104 to the cold aisle C, and the ventilation resistance of the portion up to the rack height of the first rectifying member 111 is a portion above the rack height or the second rectification. What is necessary is just to become high compared with the ventilation resistance of the member 112. For example, the resistor 1B may be a filter, a punching plate, a net, a cloth, a lattice, a louver, or a laminated body thereof, or a resistor used for an air-conditioning outlet.

ルーバ1Aと抵抗体1Bとは、一体に構成しても良いし、別体のルーバ1Aと抵抗体1BとをコールドアイルCの長手端部に重ねて配置する構成でも良い。例えば床面から天井高さまでのルーバ1Aを組み付け、床面からラック高さまでの網やフィルタ等の抵抗体1Bを当該ルーバ1Aに貼り付けて構成する。なお、抵抗体1Bは、冷気の流入方向において、ルーバ1Aより上流側(吹出口側)に設けられても、ルーバ1Aより下流側(コールドアイル側)に設けられても良く、同様に効果が得られる。   The louver 1 </ b> A and the resistor 1 </ b> B may be configured integrally, or may be configured such that separate louvers 1 </ b> A and the resistor 1 </ b> B are stacked on the longitudinal end portion of the cold aisle C. For example, a louver 1A from the floor surface to the ceiling height is assembled, and a resistor 1B such as a net or a filter from the floor surface to the rack height is attached to the louver 1A. The resistor 1B may be provided upstream (loud outlet side) from the louver 1A in the cold air inflow direction, or may be provided downstream (cold aisle side) from the louver 1A. can get.

また、ルーバ1Aと抵抗体1Bからなる第一整流部材111は、開閉自在に設けられ、コールドアイルCへ出入りする際の出入口扉として用いられても良い。   Moreover, the 1st rectification | straightening member 111 which consists of louver 1A and the resistor 1B is provided so that opening and closing is possible, and may be used as an entrance / exit door at the time of entering / exiting the cold aisle C.

図5は、第一整流部材111の他の構成例を示す図である。図5の第一整流部材111は、ルーバ1Aを上下に分割し、天井面からラック高さまでを上部ルーバ1A1として天井から吊り下げ、ラック高さから床面までを下部ルーバ1A2とし、下部ルーバ1A2と抵抗体1Bとを接合して開閉自在な出入口扉11とした。   FIG. 5 is a diagram illustrating another configuration example of the first rectifying member 111. The first rectifying member 111 in FIG. 5 divides the louver 1A up and down, hangs from the ceiling as the upper louver 1A1 from the ceiling surface to the rack height, and the lower louver 1A2 from the rack height to the floor surface as the lower louver 1A2. And the resistor 1B are joined to form an openable / closable door 11.

出入口扉11は、ラック102と接する辺にヒンジを設けて開き戸としても良いし、床面106及びラック102上部にレールを設けて、引き戸としても良い。出入口扉11を引き戸とする場合は、図6に示すように、出入口扉11を中央から左右に開く両引き戸とするのが好ましい。これによりコールドアイルCの長手端部の幅CW、即ち出入口扉11の幅が、ラック列109の長手端部の幅RWより長い場合でも、左右に開いた出入口扉11が、それぞれラック列109の幅RWに収まり邪魔にならない。   The doorway door 11 may be a hinged door by providing a hinge on the side in contact with the rack 102, or a sliding door by providing a rail on the floor 106 and the rack 102. When the doorway door 11 is used as a sliding door, it is preferable that the doorway door 11 is a double door that opens left and right from the center as shown in FIG. Thus, even when the width CW of the longitudinal end portion of the cold aisle C, that is, the width of the entrance / exit door 11 is longer than the width RW of the longitudinal end portion of the rack row 109, the entrance doors 11 opened to the left and right respectively Fits in width RW and does not get in the way.

図7は、コールドアイルC内側から見た第一整流部材111と第二整流部材112の図である。   FIG. 7 is a view of the first rectifying member 111 and the second rectifying member 112 as seen from the inside of the cold aisle C.

第二整流部材112は、ラック102の並び方向と直交する面(x−y面)を有する羽板
2Aを複数備えたルーバである。また、第二整流部材112は、羽板2Aの下部に、ラック102の吸気面(y−z面)と平行なフラットパネル2Bを有しても良い。
The second rectifying member 112 is a louver provided with a plurality of blades 2 </ b> A having a plane (xy plane) orthogonal to the arrangement direction of the racks 102. The second rectifying member 112 may have a flat panel 2B parallel to the intake surface (yz plane) of the rack 102 at the lower part of the slat 2A.

図8はルーバ1A及びルーバ2Aの説明図である。ルーバ1A及びルーバ2Aは、平板状の羽板を並行に複数配列して構成されており、この羽板の間隔(ピッチ)を、冷気の流入方向における羽板の幅よりも狭くしている。   FIG. 8 is an explanatory diagram of the louver 1A and the louver 2A. The louver 1A and the louver 2A are configured by arranging a plurality of flat blades in parallel, and the interval (pitch) between the blades is narrower than the width of the blades in the cool air inflow direction.

本実施形態1では、この羽板を垂直方向に長手とした縦型ルーバの例を示したが、これに限らず、水平方向に長手とした横型ルーバであっても良い。すなわち前述したラック列間上部以外に吹出口を設けた場合には、ルーバ2Aを横型にすると顕著な効果がある。また、縦型の羽板と横型の羽板を組み合わせた格子状のルーバであっても良い。更に、ハニカム状のルーバであっても良い。   In the first embodiment, an example of a vertical louver in which the slats are elongated in the vertical direction is shown, but the present invention is not limited thereto, and a horizontal louver elongated in the horizontal direction may be used. That is, when the air outlet is provided in addition to the above-described upper part between the rack rows, a remarkable effect can be obtained by making the louver 2A horizontal. Moreover, the lattice-like louver which combined the vertical slat and the horizontal slat may be sufficient. Further, a honeycomb louver may be used.

このように本実施形態1では、床面からラック高さまでに抵抗体1Bを設け、ラック102よりも上には抵抗体を設けずにルーバ1A,2Aを配置したことにより、ラック上方の光透過性が高い。   As described above, in the first embodiment, the resistor 1B is provided from the floor surface to the rack height, and the louvers 1A and 2A are provided without the resistor above the rack 102, so that the light transmission above the rack is achieved. High nature.

図9は、冷気が流れる経路を示した図である。本実施形態1では、コールドアイルCが整流部材と仕切板110で仕切られており、吹出口104Aから吹出された冷気は、第一整流部材111のルーバ1A及び抵抗体1Bを通過することで、風速が抑えられると共に風向きが吸気面と平行な方向に整えられる。また、ラック上方へ流れた冷気は、第一整流部材111のルーバ1A上部或は第二整流部材112を通過することで、風向きが整えられる。更に、図10に示すラック上端のコールドアイル側の角部付近では、冷気が第二整流部材112のフラットパネル2Bによって吸気面と平行な方向に導かれる。このように本実施形態1では、冷気が第一整流部材111或は第二整流部材112で整流されるので、ホットスポットの形成が防止される。例えば抵抗体1Bにより冷気の風速が抑えられるので、静圧が低くなってラック内の暖気が逆流することを防止できる。また、第一整流部材のルーバ1A上部及び第二整流部材112で、冷気の風向きを整えることで、偏流によるホットスポットの形成を防止できる。   FIG. 9 is a diagram illustrating a path through which cool air flows. In the first embodiment, the cold aisle C is partitioned by the rectifying member and the partition plate 110, and the cold air blown out from the outlet 104A passes through the louver 1A and the resistor 1B of the first rectifying member 111. The wind speed is suppressed and the wind direction is adjusted in a direction parallel to the intake surface. Further, the cool air flowing upward of the rack passes through the upper portion of the louver 1A of the first rectifying member 111 or the second rectifying member 112, so that the wind direction is adjusted. Further, in the vicinity of the corner on the cold aisle side at the upper end of the rack shown in FIG. 10, the cool air is guided in a direction parallel to the intake surface by the flat panel 2 </ b> B of the second rectifying member 112. As described above, in the first embodiment, since the cool air is rectified by the first rectifying member 111 or the second rectifying member 112, formation of a hot spot is prevented. For example, since the wind speed of the cold air is suppressed by the resistor 1B, it is possible to prevent the static air from being lowered and the warm air in the rack from flowing backward. Moreover, the formation of hot spots due to drift can be prevented by adjusting the direction of the cool air in the first rectifying member louver 1A and the second rectifying member 112.

この整流部材による整流の効果を図11−図13を用いて説明する。なお、図11−図13の例では、図3に示す配置において、3台の空調ユニット104のうち、#1を停止し、#2及び#3の2台で運転した場合のA−A線断面におけるラック吸い込み温度を示す。   The effect of rectification by this rectifying member will be described with reference to FIGS. In the example of FIGS. 11 to 13, in the arrangement shown in FIG. 3, # 1 is stopped among the three air conditioning units 104, and the AA line is operated with two units # 2 and # 3. The rack suction temperature in a cross section is shown.

図11は、整流部材が無い場合のシミュレーション結果を示す図である。図11に示すように、整流部材による整流効果が無いと、コールドアイルCの中央付近に特に特に温度の高いホットスポットが形成されると共に、空調ユニット104側のコールドアイル端部やコールドアイル上部といった広い範囲にホットスポットが形成される。   FIG. 11 is a diagram illustrating a simulation result when there is no rectifying member. As shown in FIG. 11, when there is no rectifying effect by the rectifying member, a hot spot having a particularly high temperature is formed near the center of the cold aisle C, and the cold aisle end on the air conditioning unit 104 side or the cold aisle top Hot spots are formed in a wide range.

図12は、整流部材として抵抗体1Bを用いると共に、ルーバ1A,2Aに代えてガラリを用いた場合のシミュレーション結果を示す図である。即ち、ルーバ1A,2Aによる冷気の向きを整える効果が無い場合の例である。   FIG. 12 is a diagram illustrating a simulation result when the resistor 1B is used as the rectifying member and the louver is used instead of the louvers 1A and 2A. That is, this is an example in the case where there is no effect of adjusting the direction of the cold air by the louvers 1A and 2A.

この場合、図12に示すように、中央部付近の温度上昇が改善されたものの、偏流の影響により、空調ユニット104側のコールドアイル端部やコールドアイル上部にホットスポットが形成される。   In this case, as shown in FIG. 12, although the temperature rise in the vicinity of the center portion has been improved, hot spots are formed at the cold aisle end and the cold aisle upper portion due to the drift.

図13は、整流部材として本実施形態1の第一整流部材111及び第二整流部材112を用いた場合のシミュレーション結果を示す図である。図13に示すように、本実施形態
1の第一整流部材111及び第二整流部材112を備えた場合、他の例と比べてホットスポットの形成が抑えられる。
FIG. 13 is a diagram illustrating a simulation result when the first rectifying member 111 and the second rectifying member 112 of Embodiment 1 are used as the rectifying member. As shown in FIG. 13, when the first rectifying member 111 and the second rectifying member 112 of the first embodiment are provided, the formation of hot spots can be suppressed as compared with other examples.

特に、図3に示したように空調ユニット104が、冗長性を確保するため水平方向に異なる位置に複数設けられ、故障などによって、このうち一部の空調ユニット104の空気吹出口から冷気が吹き出される場合、偏流の影響によりホットスポットが形成され易いが、ルーバ1A,2Aによる整流効果により、偏流が抑えられ、ホットスポットの形成が防止される。   In particular, as shown in FIG. 3, a plurality of air conditioning units 104 are provided at different positions in the horizontal direction in order to ensure redundancy, and cold air blows out from the air outlets of some of the air conditioning units 104 due to failure or the like. In this case, hot spots are likely to be formed due to the influence of drift, but the drift is suppressed by the rectification effect by the louvers 1A and 2A, and the formation of hot spots is prevented.

以上のように本実施形態1によれば、整流部材によりホットスポットの形成が防止でき、且つ整流部材上部の光透過性が高いため、防犯カメラや照明を設置する際の自由度を高めることができる。   As described above, according to the first embodiment, the formation of hot spots can be prevented by the rectifying member, and the light transmittance of the upper portion of the rectifying member is high, so that the degree of freedom when installing a security camera or illumination can be increased. it can.

また、整流部材の多くを垂直な部材によって構成したことにより、塵埃の体積が少なく、保守性の高い、空調システムを提供できる。   In addition, since most of the rectifying members are constituted by vertical members, it is possible to provide an air conditioning system with a small volume of dust and high maintainability.

〈実施形態2〉
図14は、実施形態2に係る整流部材の構成例を示す図である。本実施形態2は、前述の実施形態1と比べて、第二整流部材をラック間にかけ渡した構成が異なっており、その他の構成は同じである。
<Embodiment 2>
FIG. 14 is a diagram illustrating a configuration example of a rectifying member according to the second embodiment. The second embodiment is different from the first embodiment in the configuration in which the second rectifying member is spanned between the racks, and the other configurations are the same.

図14に示すように、第二整流部材112として、ラック102の並び方向と直交する面を有する羽板をラック102の上部にかけ渡して構成した場合にも、第二整流部材112が上方へ流れた冷気の向きを整えてコールドアイルCへ導くことにより、ホットスポットの形成を防止できる。   As shown in FIG. 14, even when the second rectifying member 112 is configured such that a slat having a surface orthogonal to the direction in which the racks 102 are arranged is stretched over the rack 102, the second rectifying member 112 flows upward. By adjusting the direction of the cool air and guiding it to the cold aisle C, formation of hot spots can be prevented.

また、ラック上方に抵抗体を設けることなく十分な整流効果を得ることができ、前述の実施形態1と同様に光透過性が高く、防犯カメラや照明を設置する際の自由度を高めることができる。   In addition, a sufficient rectifying effect can be obtained without providing a resistor above the rack, the light transmission is high as in the first embodiment, and the degree of freedom when installing a security camera or illumination can be increased. it can.

1A,2A ルーバ
1B 抵抗体
2A 羽板
2B フラットパネル
12 出入口扉
100 空調システム
101 データセンタ
102 ラック
103 サーバールーム
104 空調ユニット
104A 吹出口
111 第一整流部材
112 第二整流部材
C コールドアイル
H ホットアイル
1A, 2A Louver 1B Resistor 2A Wing board 2B Flat panel 12 Entrance door 100 Air conditioning system 101 Data center 102 Rack 103 Server room 104 Air conditioning unit 104A Air outlet 111 First rectifying member 112 Second rectifying member C Cold aisle H Hot aisle

Claims (6)

情報処理機器を収容するラックを列状に並べて設置する情報処理機器室の空調を行う空調システムであって、
前記情報処理機器室内において前記ラックへ向けて開口する、前記情報処理機器を冷却するための冷気を前記情報処理機器室内へ吹き出す空気吹出口と、
前記ラックの列の吸気面を対向させて前記ラック列を並設し、対向する前記吸気面の間の冷気が供給される領域を冷気領域とし、前記ラックの並び方向を長手とする前記冷気領域の長手方向端部に設けられ、前記ラックの並び方向と平行な面を複数有して前記冷気領域へ流入する冷気の流入方向を調整する整流部材と、
前記冷気領域の長手端部に、前記整流部材と平行に組み合わせて設けられた抵抗体とを備え、
前記抵抗体が、当該抵抗体及び前記整流部材を通過して前記冷気領域へ流入する冷気の通気抵抗を前記整流部材単体よりも高くして前記冷気領域へ流入する冷気の流速を調整する、
情報処理機器室の空調システム。
An air conditioning system that performs air conditioning of an information processing equipment room in which racks that contain information processing equipment are arranged in a row,
An air outlet that opens toward the rack in the information processing equipment room and blows out cool air for cooling the information processing equipment into the information processing equipment room;
The rack rows are arranged side by side with the air intake surfaces of the rack rows facing each other, a region to which cool air is supplied between the air intake surfaces facing each other is defined as a cold air region, and the cold air region having a longitudinal arrangement direction of the racks A rectifying member that is provided at a longitudinal end portion of the rack and has a plurality of surfaces parallel to the arrangement direction of the racks, and adjusts the inflow direction of the cool air flowing into the cool air region
A resistor provided in combination with the straightening member at the longitudinal end of the cold air region,
The resistor adjusts the flow velocity of the cold air flowing into the cold air region by making the ventilation resistance of the cold air flowing into the cold air region through the resistor and the straightening member higher than that of the straightening member alone,
Air conditioning system for information processing equipment room.
前記整流部材が、前記ラックの吸気面と平行な羽板を有するルーバである、
請求項1に記載の情報処理機器室の空調システム。
The rectifying member is a louver having a slat parallel to the intake surface of the rack.
The air conditioning system of the information processing equipment room according to claim 1.
前記ルーバが、前記羽板を平行に複数備え、当該羽板の設置間隔が、前記ラックの並び方向における当該羽板の幅よりも狭い、
請求項2に記載の情報処理機器室の空調システム。
The louver comprises a plurality of the slats in parallel, and the installation interval of the slats is narrower than the width of the slats in the direction in which the racks are arranged.
The air conditioning system of the information processing equipment room according to claim 2.
前記整流部材の少なくとも一部が、開閉可能な扉として構成された、
請求項1から3の何れか一項に記載の情報処理機器室の空調システム。
At least a part of the rectifying member is configured as an openable / closable door,
The air conditioning system for an information processing equipment room according to any one of claims 1 to 3.
前記整流部材が、上部整流部材と下部整流部材に分割され、前記上部整流部材が天井面から前記ラック高さまでに位置し、前記下部整流部材が前記ラック高さから床面までに位置し、前記下部整流部材と前記抵抗体とを組み合わせて前記扉とした請求項4に記載の情報処理機器室の空調システム。   The rectifying member is divided into an upper rectifying member and a lower rectifying member, the upper rectifying member is located from the ceiling surface to the rack height, and the lower rectifying member is located from the rack height to the floor surface, The air conditioning system for an information processing equipment room according to claim 4, wherein the door is formed by combining a lower rectifying member and the resistor. 前記空気吹出口が、水平方向に異なる位置に複数設けられ、前記複数の空気吹出口のうち、一部の空気吹出口から冷気が吹き出される、
請求項1から5の何れか一項に記載の情報処理機器室の空調システム。
A plurality of the air outlets are provided at different positions in the horizontal direction, and among the plurality of air outlets, cold air is blown out from some of the air outlets.
The air conditioning system of the information processing equipment room according to any one of claims 1 to 5.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9894807B2 (en) 2015-01-27 2018-02-13 International Business Machines Corporation Changeable, airflow venting cover assembly for an electronics rack
KR20210076349A (en) * 2019-12-16 2021-06-24 주식회사 어니언소프트웨어 Simulation modeling of server room temperature of data center and Production method thereof

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JPH08261532A (en) * 1995-03-20 1996-10-11 Toyo Eng Works Ltd Clean room
US20060260338A1 (en) * 2005-05-17 2006-11-23 Vangilder James Cold aisle isolation
JP2012087979A (en) * 2010-10-19 2012-05-10 Takasago Thermal Eng Co Ltd Air conditioning system of information processing equipment room
JP2012137244A (en) * 2010-12-27 2012-07-19 Takasago Thermal Eng Co Ltd Air-conditioning system for information-processing equipment room

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JPS4729858U (en) * 1971-04-26 1972-12-05
JPS6319130U (en) * 1986-07-21 1988-02-08
JPH08261532A (en) * 1995-03-20 1996-10-11 Toyo Eng Works Ltd Clean room
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JP2012087979A (en) * 2010-10-19 2012-05-10 Takasago Thermal Eng Co Ltd Air conditioning system of information processing equipment room
JP2012137244A (en) * 2010-12-27 2012-07-19 Takasago Thermal Eng Co Ltd Air-conditioning system for information-processing equipment room

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9894807B2 (en) 2015-01-27 2018-02-13 International Business Machines Corporation Changeable, airflow venting cover assembly for an electronics rack
KR20210076349A (en) * 2019-12-16 2021-06-24 주식회사 어니언소프트웨어 Simulation modeling of server room temperature of data center and Production method thereof
KR102368592B1 (en) 2019-12-16 2022-02-28 주식회사 어니언소프트웨어 Simulation modeling method of server room temperature of data center and modeling apparatus thereof

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