DATA CENTRE COOLING
8m3/hr water recycling system, up to £120,000 can be saved every year, far outweighing the £70,000 installation costs.
Air cooled systems
For smaller data centres, air cooling is a more common application many of which rely on closed circuit water systems. In these cases, the emphasis should be on energy savings rather than water wastage, with the cleanliness and efficiency of the HVAC system a crucial mitigator against the risk of catastrophic downtime.
Common issues such as microbiological fouling, corrosion and scale are detrimental to system performance and lead to early replacement of valuable plants as well as increased running costs. Traditionally, sampling is used to detect
problems with the condition of the water system, however, this method often falls short on identifying dissolved oxygen, the precursor to all forms of water system corrosion. Lab results can take weeks to return and only indicate was has already happened.
The alternative option is continuous monitoring, which takes live readings on a wide range of parameters including pH, temperature, pressure,
inhibitor levels and the all-important dissolved oxygen.
We use Hevasure, a patented and innovative water monitoring system which tracks system condition 24/7 using thousands of data points. When issues are detected, responsible parties are notified immediately, allowing proactive (rather than reactive) action to be taken without delay.
Large scale operation
Additional improvements can be made to cooling system efficiency with installation of a centralised water softening plant to treat incoming water. Its estimated that just 1.6mm of scale can reduce thermal transfer by up to 12% and in extreme cases it can totally block heat exchangers, increasing pumping costs, corrosion and Legionella risk. Installing a water softening plant can help data centres save over £20,000 per month in labour costs, with ROI recouped in less than a year.
Changing the culture
Demand for data centres capacity will continue to grow as we become more reliant on smart technology, meaning more power, more heat,
more water. Maintaining a suitable environment for power hungry servers has never been more important yet energy consumption and its
associated cooling costs are of increasing concern. Data centre owners and facilities managers must evolve to push the boundaries of data centre sustainability, particularly as HVAC efficiency is synonymous with increased reliability and lower running costs.
Elitech
41
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64
