創新資料中心高性能密閉式機櫃研究

A Research on an innovation high performance closed type data center service cabinet

陳彥昌(Yan-Chang Chen)

指導教授 ： 蔡尤溪

國立臺北科技大學/機電學院/能源與冷凍空調工程系碩士班/碩士(2010年)

https://doi.org/10.6841/NTUT.2010.00607

摘要

密閉式機櫃乃是將伺服器置於機櫃內，利用供應冷風給伺服器，使伺服器得以維持良好散熱。在美國網路資料中心耗電已超過電視機，未來雲端運算發展後，會逐漸成為已開發國家之重要之耗電項目。本研究探討水平式伺服器與刀鋒式伺服器應用於密閉式機櫃時散熱效能比較，並以計算流體力學軟體(FLUENT)建立密閉式機櫃之3D模型，以數值模擬分析機櫃內流場與溫度。研究參數分別為：(1)機櫃氣流入口孔位、(2)機櫃變風量分析、(3)熱回流氣流分析。經由改變機櫃氣流入口孔位中，當機櫃氣流入口與伺服器氣流入口置於同側，將導致伺服器之出風量下降與出口溫度上升。在改變機櫃變風量分析中，提高機櫃出風量反而降低伺服器出風風量並增加風扇耗能。實驗中發現，提高機櫃風扇風速造成風機噪音隨之變大。刀鋒式密閉式機櫃設計上相較於水平式伺服器可容納較多伺服器，當刀鋒式機櫃內熱負荷達到3.334kW時，其刀鋒式機櫃之伺服器平均出口溫度為307.7K(34.7℃)，而在熱負荷2kW時，其刀鋒式伺服器出口溫度為304.9K(31.9℃)，其平均溫度只上升了2.8K，由此可知刀鋒式伺服器在參數最佳化後，可增加機櫃內部熱負荷，且又不犧牲伺服器之散熱性能。

關鍵字

資料中心 ； 密閉式機櫃 ； 刀峰式機櫃 ； 計算流體力學

並列摘要

Closed type server cabinets are supplied with cool air so that the servers can draw cool air for maintaining proper heat rejection. As the result of intensive energy consumption, IDC has consumed more power than television sets in the United States. In future cloud computing would only cause IDC to become a major energy use in developed nations. This study investigated the horizontal blade servers and rack servers closed when the heat applied to comparative performance, and to computational fluid dynamics software (FLUENT) to establish closed cabinet of 3D model to numerical simulation of flow field and temperature cabinet. The parameters studied were: (1) cabinet air entrance holes, (2) variable air volume of the cabinet, (3) The return flow of heat. Change the air flow through the entrance hole in the cabinet, when the cabinet air flow entrance and the entrance ipsilateral server, the server will result in the decline of the air temperature rise and exports. Changing the variable air volume of the cabinet, the cabinet out to improve air flow would reduce the amount of servers and increase the primary air fan energy. It was found to enhance the fan cabinet fan noise caused by wind along larger. Blade closed cabinet design, the server can be compared to horizontal to accommodate more servers, rack heat load when the blade reached 3.334kW, its blade server rack the average exit temperature of 307.7K (34.7 ℃), 2kW heat load at the time, its blade server exit temperature is 304.9K (31.9 ℃), the average temperature rose by only 2.8K, can be seen blade servers in the parameter optimization, additional heat inside the cabinet load, and heat dissipation without sacrificing server performance.

並列關鍵字

IDC ； closed cabinet ； blade server rack ； CFD

參考文獻

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