Boiler design

The Aalborg D features a compact, vertical “D”-shaped

configuration with interconnected steam and water drums.

Its furnace is built with fully water-cooled membrane walls and

minimal refractory, ensuring durability and safety in harsh offshore

environments. The convection section uses straight pin tubes with

bent pins for high heat transfer and low pressure loss.

Reliable water circulation is maintained by external downcomers,

preventing overheating and tube burnout.

Integrated Burner Technology

Alfa Laval’s Gosfern® dual-fuel burners offer maximum flexibility

and efficiency for offshore use. They operate with a wide range

of liquid and gas fuels and can fire both simultaneously, ensuring

seamless fuel switching and reliable operation.

Precisely integrated with the Aalborg D furnace, these burners

deliver stable combustion, low emissions, and consistent

performance—even under changing load conditions. This robust

technology supports environmental compliance and operational

efficiency, making it ideal for offshore environments.

Advanced control systems maintain stable steam pressure and

high steam quality, while hot water heater operation is managed

by precise temperature control.