Intelligent Data Centres Issue 70 | Page 48

IMPROVING THE EFFICIENCY OF OUR DATA CENTRES SHOULD BE A PRIORITY OF OUR AGE . DATA COMES AT A COST AND WHILE IT IS SEEMINGLY ‘ INVISIBLE ’ TO MOST PEOPLE , IT HAS A VERY REAL FOOTPRINT .
F E A T U R E
Understanding the parameters that cause corrosion
Effective corrosion prevention is about monitoring and understanding the relationship between a number of key parameters . These parameters are :
Overall , monitoring will lead to more efficient and effective maintenance and improved operational certainty , extending asset life . Maintenance can be better planned and corrosion can be stopped before it even starts . Over 10 years , 24 / 7 monitoring will save money across the board , reducing energy usage , water wastage and unnecessary site visits –

“ the latest systems are accessible on any Internet-enabled device , with alerts sent to responsible parties if problems arise .

Improving the efficiency of our data centres should be a priority of our age . Data comes at a cost and while it is seemingly ‘ invisible ’ to most people , it has a very real footprint . �
IMPROVING THE EFFICIENCY OF OUR DATA CENTRES SHOULD BE A PRIORITY OF OUR AGE . DATA COMES AT A COST AND WHILE IT IS SEEMINGLY ‘ INVISIBLE ’ TO MOST PEOPLE , IT HAS A VERY REAL FOOTPRINT .
• Pressure : Preventing oxygen ingress is the key to corrosion control and this starts with keeping a system pressurised correctly and as airtight as possible . Changes in pressure often lead to air ingress , meaning oxygen is entering the system
• Oxygen : Oxygen causes corrosion directly and creates the right conditions for bacteria and other pathogens to thrive , which can lead to microbialinduced corrosion ( MIC ) and other contamination issues . Dissolved oxygen should be checked for ( as well as system pressure )
• Conductivity : Conductivity is a measure of the electrical potential of a medium to pass an electrical current through water . This is the basis of the electro-chemical reaction of the corrosion process
• pH : Chemical or electro-chemical water conditioning can affect the pH ( acidity or alkalinity ) of the water . This parameter can be critical with certain materials and is a useful measure for general corrosion rate arrest . Higher pH levels can also deter some bacterial proliferation
• Temperature : High temperatures can increase the corrosion risk ; low to medium temperatures can encourage the proliferation of bacteria
• Loss of flow and stagnancy : This can lead to stagnancy and encourage free-flowing bacteria into the sessile state thus increasing the biofilm formation risk . Stagnancy results in dissolved oxygen coming out of the solution and generating air pockets . Loss of flow can impact the efficacy of inhibitors and biocides
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