Feature


Techniques For Sustainable Corrosion Prevention


While it’s clear that corrosion needs to be prevented, how its done can have a big impact on sustainability. Historically, corrosion was checked for using sampling and laboratory analysis, any issues flagged were present at the time of the sample, with the usual reaction flushing and dosing, which uses large volumes of water and chemicals.


A more effective approach to preventing corrosion is continuous real-time monitoring of the water inside the pipework, which provides clues as to whether corrosion is likely (such as elevated oxygen, changes in pressure, temperature and pH), therefore allowing FMs and their maintenance teams to manage closed system HVAC in a preventative rather than reactive way. By identifying early signs of corrosion, targeted interventions can take place, and maintenance can be based on real need rather than knee-jerk guess work.


As this type of monitoring is accessed remotely, this approach can also reduce site visits, further enhancing sustainability and reducing overall cost.


Conclusion


There will always be times where the condition inside a closed system is disrupted: after routine maintenance,


This was when a sample was usually taken, leading to the afore- mentioned flushing. With monitoring, a change in condition is identified and then tracked to see how quickly things return to in-specification results. If this happens quickly, no intervention is needed, saving money, time and reducing environmental impact.


Open Loop Sustainability


For data centre, factory and hospital cooling – applications needing a bigger system, it is common to use open loop systems, such as cooling towers. These systems are some of the most effective and energy efficient cooling methods at scale and use around 40% less electricity than other methods. The sustainability issues lie with the volumes of water required.


for example.


Effective corrosion prevention contributes to more than just operational efficiency; it aligns with global sustainability initiatives by reducing greenhouse gas emissions and conserving critical resources. By improving the performance of water-based HVAC systems, facilities managers can also enhance indoor air quality and occupant comfort, creating healthier, more productive environments.


Moreover,


management are significant. Lower energy bills, downtime,


be carried out in way that further sustainability goals. fmuk 39


the financial benefits of proactive corrosion reduced


and extended equipment life translate to


substantial cost savings, making sustainability an economically viable strategy. With the latest techniques, corrosion prevention can


enhances these


Water recovery and rainwater reuse can recycle about 70% of water, with bigger systems boasting the greatest returns, saving approximately £2 per cubic metre of water recovered. With some of the largest data centres using thousands of cubic metres of water per day, this equates to a huge saving. In fact, the initial outlay of water recycling system can be recouped in less than six months.


Apart from saving water, recycling systems remove dissolved solids, bacteria, algae and viruses, ensuring the water is safe. In some cases, this water is cleaner than when it went in.


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