The Problems caused by Corrosion and the Pollution of Coil Blocks on HVAC Plant in Data Centres.

Corrosion is widely accepted to be the main cause of early deterioration in heat exchanger coils, traditionally the most vulnerable part of airside HVAC equipment.

Corrosion will continue until the performance of the heat exchanger fails to meet the stated requirements. The overall result of the corrosion is the eventual decrease in capacity and consequents increase in energy consumption. The two most common forms of corrosion occurring in HVAC equipment are known as ‘galvanic corrosion’ and ‘climate impact corrosion’. Both of these can lead to equipment failure. Sealing heat exchangers surfaces from the environment will either delay corrosive process or prevent them from occurring in the first place, this being dependent upon the operating environment.

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Blygold are world leaders in the field of Anti-Corrosion/Anti Bacterial coatings for air-conditioning systems and Air Handling Units. The first protective coating, Blygold Tropic was successfully introduced in Holland Rijk Bleijenberg in 1985 and since then many other products have been added to our portfolio.

Blygold PolAl is an anti-corrosion treatment consisting of a conversion layer followed by a polyurethane (impregnated with Aluminium) top coat. The operating temperature range is from -20°c to 150°c. There is no loss of heat transfer performance and there is only a minimum change in pressure drop. The Blygold treatment is applied to cooling and DX coils, but can also be applied to run round coils, heating coils and heat pipes. Areas of application may include: – swimming pools, industrial, medical, process, coastal areas etc.

Blygold now operate in over 57 countries throughout the world and is recognised as the Brand Leader in Heat Exchanger Post Coat Protection and the renovation of Air Handling Equipment.

Blygold International BV strives to be the worldwide leading company in the renovation and conservation of heat exchanging equipment. Blygold International BV is dedicated to make products and processes as environmentally sound and safe as possible for our planet.

Preventing and Correcting the corrosive impact at technical installations.

THE PROBLEM

Heat exchangers are subject to sever corrosion because of their construction, which usually combines dissimilar metals and because of the volume of polluted air passing through them. Corrosion and pollution of heat exchangers will directly affect the performance of the air conditioning system. The heat exchanger must be sealed off from the environment in a manner that will not reduce its heat transfer or cause a pressure drop. When this is accomplished, the cooling capacity will remain intact and energy consumption can be controlled.

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THE SOLUTION

The Blygold PolAl XT coating provides a long lasting corrosion protection to heat exchangers, without affecting heat transfer and pressure drop. The system can be applied in the factory as well as on-site. The heat conductive pigmentation in the coating is oriented in such a way that it creates a very high chemical resistance at a low layer thickness. In combination with the unique application procedures, the PoluAl XT is the best available option to prevent air conditioning failure and unnecessary energy consumption.

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Blygold Coating extends the life time of the Heat Exchanger and will control cooling capacity and energy consumption.

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