Alfa Laval Aalborg OS-TCi Self-cleaning fired boiler with multi-fuel and hybrid options

During fired operation, heat from fuel combustion is transferred

to the furnace shell, mainly through radiation. Flue gases leaving

the furnace enter vertical uptakes where the heat is transferred

to helix tubes, mainly through convection.  If the boiler is config

ured as a hybrid, the electric heater provides an alternative

heat source.

Heat transferred through the furnace shell or the helix tube walls

evaporates the adjacent saturated water on the boiler’s water

side. This causes steam bubbles to form. Because the steam

bubbles have a much lower specific density than the water, they

rise rapidly into the steam space, where the water and steam

are separated.

Control

Like other Alfa Laval equipment on board, the Aalborg OS-TCi

uses Alfa Laval Touch Control. This recognizable, user-friendly

interface features a graphical touchscreen with intuitive navi

gation, making it easy for the crew to learn and use it correctly.

Robust and PLC-based, the control system offers future-proof

expansion possibilities and support for remote troubleshooting.

Maintenance

The Aalborg OS-TCi is effectively self-cleaning thanks to its

TCi (Turbo Clean, intelligent) technology, which keeps the boiler

running efficiently and prolongs its service life. The TCI cleaning

process is fully automatic.