Benefits

• Compact and efficient design based on helix smoke tubes

• Easy improvement of Carbon Intensity Indicator (CII)

• Short payback time (typically 1–2 years) through up to

25% fuel savings on the fired boiler

• Reduced wear and maintenance on the fired boiler

• Long service life thanks to self-cleaning Turbo Clean

technology

Working principle

The Aalborg XS-TC7A is installed after a vessel’s auxiliary

engine. When the exhaust gas passes over its heat¬ing

surface, the waste heat energy in the gas is absorbed for the

production of steam. The economizer can be adapted for dry

running in the event of an emergency.

The Aalborg XS-TC7A features an optimized convection part

that augments heat transfer by increasing turbulence at the

exhaust gas boundary layer. This contributes to increased

steam production while reducing the economizer’s weight

and footprint.

The economizer is designed for forced circulation and is used

in connection with one or more fired boilers, which act as the

steam space.