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When designing a computer room space, the key components are sensible cooling capacity, sensible heat ratio, and air flow distribution. The cooling equipment must be sized for rapid air turnover, typically XX air changes per hour (ACH) are considered optimal. To ensure proper air distribution, a computational fluid dynamic (CFD) study is recommended, prior to construction. It is also recommended that a service agreement is put into place, so that as changes are made, the CFD is kept up to date. A common mistake is the use of conventional cooling equipment with a Sensible Heat Ratio (SHR) significantly less than 1.00. A typical data center has little or no latent load in the space, so the typical SHR of the space is ~ 1.00. If conventional comfort cooling equipment is used, the equipment tends to dehumidify the space which is not conducive to efficient data center operation and optimal uptime. A typical data center design maintain a 50% RH space condition. |
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Data Processing 