Alfa Laval Aalborg OC-TCi Self-cleaning composite boiler with multi-fuel and hybrid options

The Alfa Laval Aalborg OC-TCi is a marine composite boiler

for producing steam through combustion and/or waste heat

recovery. With its high efficiency and its ability to reclaim thermal

energy, it can help reduce environmental impact.

Ready for the fuel transition, the OC-TCi can use oils, biofuels

and one alternative fuel of your choice. Additionally, it can be con

figured as an electric hybrid. These options can be implemented

directly, or the boiler can be prepared for their installation later.

Benefits

• Configuration for your choice of alternative fuels

– implemented now or later

• Hybrid and hybrid-ready options for electric operation

• Reduced carbon footprint through waste heat recovery

• Energy efficiency maintained through self-cleaning TCi

(Turbo Clean, intelligent) technology

• Trouble-free uptime, secured through robust design

and user-friendly control

Application

The Aalborg OC-TCi is a flexible marine boiler that can support

vessel operations in multiple ways:

• Steam generation:

The Aalborg OC-TCi is primarily used to provide steam for:

– Tank cleaning– HVAC

– Engine room consumers

• Waste heat recovery:

Besides generating steam with waste heat on its own,

the Aalborg OC-TCi can support one or more exhaust

gas economizers by serving as a shared steam drum.

• LNG safety:

On vessels using LNG as fuel, the Aalborg OC-TCi can:

– Support boil-off gas (BOG) management by safely

combusting BOG that cannot be consumed by an

auxiliary engine or genset

– Combust a free flow from the LNG tank if the vessel’s

compression train should fail

– Combust the mix of inert gas and methane that arises

before and after tank inspection, eliminating detours

for gas disposal

Design

Compact and easy to install, the Aalborg OC-TCi operates

on oils and biofuels and can also be configured for one alternative

fuel: LNG, methanol or ammonia.* Additionally, it can produce

steam through waste heat recovery. It is delivered with a preas

sembled Aalborg burner built on Alfa Laval’s innovative Multi

Flame (MF) concept. The boiler and burner are both engineered

and produced in-house to ensure the highest reliability.

• Aalborg OC-TCi boiler:

The Aalborg OC-TCi is a side-fired composite boiler with

a fired section comprised of helix tubes. This tube design

provides more heat transfer area than competing solutions,

which results in fuel-saving efficiency. For waste heat recovery,

the boiler has 1–3 exhaust gas sections with smoke tubes,

allowing it utilize exhaust gas heat from up to three engines.

Combustion heat from the burner – or exhaust gas heat

from waste heat recovery – is distributed uniformly through

the boiler’s convection section. This ensures optimal heat

transfer and reduces damaging thermal stress inside

the boiler.

• Aalborg MF PA burner:

The Aalborg MF PA is a side-fired, pressure-atomizing

burner that supports conventional fuels and gas fuels like

LNG. By pre-mixing air and gas, it reduces the production

of CO2. NOx and other emissions.

• Aalborg MF SAS burner:

The Aalborg MF SAS is a side-fired, steam/air-atomizing

burner that supports conventional fuels and methanol.