What type of heat exchanger is installed to counter the corrosive nature of condensate from high sulphur content fuel?

A heat exchanger designed to handle the corrosive nature of condensate from high sulphur content fuel must be constructed from materials that can resist corrosion effectively. Stainless steel is an alloy that contains chromium, which forms a passive oxide layer that protects it from corrosion, making it particularly suitable for environments exposed to acidic conditions, such as those created by high sulphur content fuel.

Stainless steel exhibits excellent resistance to oxidation and corrosive environments, making it ideal for use in applications where condensate from burning high-sulphur fuels can be expected. This is crucial to ensure the longevity and reliability of the heat exchanger, as well as to prevent leaks and maintain efficiency.

While plastic-lined and high alloy steels also offer corrosion resistance, stainless steel is often favored for its balance of mechanical properties, cost, and durability. Mild steel, on the other hand, is not suitable for this application, as it lacks the necessary corrosion resistance and would likely degrade quickly in such conditions.