資訊管理系統機房空調箱最佳運轉模式分析

Performance Analysis for Optimal Operation Model of Air Handing Units in Management Information System(MIS) Room

劉偉忠(Wei-Chung Liu)

指導教授 ： 柯明村

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(2007年)

摘要

當前台灣電子科技廠商普遍設置Management Information System(資訊管理系統，以下簡稱MIS)機房，藉由機房內之網路及設備，串聯每個生產廠房、辦公室、倉庫等區域，管理對內之生產、庫存、收貨及出貨資訊，對外之訂單、交貨資訊，其重要性自不可言喻。MIS機房空調為高顯熱負荷，主要熱源來自內部電子網路設備等運作所散發之熱量，空調之目的為使機房內的設備，均能在合適的環境下運作，獲得穩定不當機的MIS。本研究以高架地板供風實例來探討MIS機櫃(rack)溫度與空調循環風量之間如何搭配的問題，結合空調箱風車的風量控制與冷卻盤管的冰水流量控制達到合適的供風量及供風溫度，來控制機櫃環境溫度，主要目的為逐一探討四種模式其在不同的運轉控制參數下，機櫃溫度的變化情況，據此透過數據分析，探討歸納比較各模式的優缺點，並從中得出MIS機房空調箱運轉最適化方案，以利未來提供給相關工程人員做為規劃設計或日常運轉的參考依據。本研究結果如下：最佳運轉模式為變風量變水流量模式，機櫃溫度異常偏移比例最低，為68%，隨空調負荷變動的調整能力最佳，範圍介於－25.24%~＋11.51%之間，與MIS空調箱普遍採用之變水流量定風量模式相比較，本模式空氣側年度運轉電費減少比率約為 18.18 %，年度耗電量減少比率約為 18.18 %，本研究案例之工程設置金額增加比率約為 10.0 %，其增設金額回收年限約為8.1年。

關鍵字

資訊管理系統 ； 資訊管理系統機房空調 ； 最佳運轉模式

並列摘要

Currently, high-tech manufacturers for electronic industry in Taiwan generally will set up Management Information System (MIS) rooms for connecting each production line, office and warehouse, etc by those internet devices and equipments inside MIS rooms. The MIS plays a very important role in managing both the internal production, inventory, goods acceptance, goods delivery and the external orders and delivery informations. The sensible loading of air-conditioning is very significant and the main heat resource is from the heat released by the operation of the inside electronic networks and communication equipments. The purpose of setting up air-conditioning in MIS rooms is to ensure the equipments working under the proper environment in case of any unstable breakdown. By studying the cases of supplying air on the raised floor, this study probes into how to match the temperature of MIS racks and the circulating airflow rates of air–conditioning system in MIS rooms. In order to control the temperature of racks surroundings, this study also probes into how to reach the proper supplying air temperature and volume by controlling the volume of both airflow generated by the fan and chilled water of the cooling coils in air handing units. The main purpose is to know the changes of racks temperature by studying four models which are under different control parameters respectively. According to this method of data analysis, this study compares the advantages with disadvantages of these models and find the optimal operation solution for air handing units in MIS rooms. In addition, this sudy is also a reference for relevant technians who are in charge of designing or daily operation. This study obtains the following achievements: The model of variable circulating airflow rates and waterflow rates is the optimal one which has the lowest unusual discrepant proportion in rack temperature : 68%. What’s more, the adjustment ability of loading changes is also the best one which is between – 25.24% and + 11.51%. Comparing with the commonly adopted model of constant circulating airflow rates and variable waterflow rates, this optimal model reduces 18.18 % of air-side electric fee and electric consumption annually. The increasing amount proportion of building this project for this study case is about 10.0 % and the amount retrieving time is about 8.1 years.

並列關鍵字

MIS ； Air-Conditioning in MIS Room ； Optimal Operation Model

參考文獻

[1] 陳大民、王文博，電信數位交換機房對流式空調系統研究，碩士論文，國立台北科技大學冷凍空調工程研究所，台北，2003。

[2] ASHRAE Handbook-Applications,“Data Processing and Electronic Office Area,” Ch17,2003.

[6] Suhas V. Patankar and Kailash C. Karki, Ph. D. “Distribution of Cooling Airflow in a Raised-Floor Data Center,” ASHRAE Transactions,Vol.110,Part 2. 2004, pp.629~634.

[16] 陳文松、王文博，大型中央電腦機房空調氣流分佈最佳化之研究，碩士論文，國立台北科技大學冷凍空調工程研究所，台北，2004。

[3] Facility and Equipment Thermal Guidelines for Data Center and other Data Processing Environments, Atlanta: ASHRAE, 2004, pp. 11.