When Cooling And Efficiency Translate To Savings And Better Uptime

Data Centers
Dec 17 2015
Consider this – The latest AFCOM State of the Data Center report showed that 70% of respondents indicated that power density (per rack) has increased over the past 3 years. A full 26% indicated that this increase was significant.Because of the critical dependency around data center services, redundancy and uptime are big concerns. We see fairly steady trends around redundant power levels spanning today and the next three years. For example, the report shows that at least 55% already have?and will continue to have N+1 redundancy levels. Similarly, no more than 5% of respondents either currently have, or will have, 2(N+1) redundant power systems. For the most part, data center managers report using at least one level of redundancy for power.
Cooling – the Essential Data Center Consideration
Like power, cooling must be another essential consideration in the cloud and digital age. Data centers are increasing density and cooling is critical to keep operations running efficiently. As the report discussed, when we look at cooling, more than 58% indicated that they currently run, and will continue to run at least N+1 redundant cooling systems. Both today, and three years from now – 18% will operate an N+2 cooling redundancy architecture.With this trend in mind – how can organizations create data center ecosystems centered on efficiency and uptime? There is good news. New types of indirect/direct evaporative cooling (IDEC) platforms utilizing economizers and free cooling are revolutionizing both energy and water efficiency performance. These IDEC systems help reduces humidity fluctuations and filtration requirements for white space and can be deployed in a variety of unit sizes.From an efficiency and uptime perspective, here’s what these types of systems can do:
* High efficiency heat exchanger device improves unit economizer performance and wet bulb effectiveness
* High effectiveness direct evaporative media delivers cooling temperatures close to outdoor air wet bulb
* Less evaporation hours during a year
* Higher water usage efficiency at the same operating condition
* Less hours of water evaporation overall water consumptionEven with efficiency – we’re also trying to create better uptime and resiliency. Cooling and water utilization systems, within a data center, are absolutely critical components to keeping an environment up and running. This is why IDEC units are also created to support redundancy initiatives. For example:
* Easy N+1 arrangement for data center deployment
* Stacked units can be deployed for redundancy configurations and multi-story environments

Case In Point
A case in point is the Nortek Air Solutions Cool3™ IDEC Unit which can provide energy efficiency of pPUE below 1.1 and optimizes water efficiency. With many municipalities considered or even instituting water usage restrictions, a cooling unit with water efficiency significantly better than other available units can is a distinct operating advantage. Energy cost savings can be achieved year-round in most climates with three modes of operation: Economizer mode, Evaporative mode and Evaporative cooling + DX mode. The system minimizes the hours required to mechanically cool a data center because it operates in the economizer (winter) mode for more hours during the year (depending upon location) than its competitors due to having higher outdoor air dry-bulb (DB) limits. In addition, the outdoor air wet-bulb (WB) limit is very high and is slightly higher than the competition. These advantages result in significant water consumption savings and allow for a compact DX package size.Print

The Cool3 unit has additional advantages in its compact size and flexible configurations available: rooftop,
end-on or stacked units to allow data centers to maximize white space in the data center. Available capacities are 200 kW, 300 kW and 400 kW. For an overview of all the Cool3 IDEC advantages, watch the video.

In summary, massive data centers are using water, power and cooling efficiency technologies to lower their PUE. This strategy helps with cost savings as well as adding a direct competitive advantage in the market. N+1 configurations are still the dominant redundancy strategy and intelligent data center cooling and water utilization systems are a big part of this makeup. In creating your own data center environment you ensure that you have the right tools in place which can keep pace with your business and the market.For more information about cooling innovations for today’s data centers, please contact Nortek Air Solutions at datacenterinfo@nortek.com.