Marine boiler solutions for LNG as fuel
As the marine industry decarbonizes, Alfa Laval Aalborg marine boilers are ready to work with more sustainable LNG fuel. Today’s fuel-flexible Aalborg boiler platform enables easy configuration for LNG, no matter if you choose to implement it today or if you want to be ready for a later LNG conversion. Our boilers ensure high-efficiency production of steam or hot water, whether running on LNG or using your backup choice of oil or biofuel. In addition, they can take on the crucial safety function of managing LNG boil-off gas (BOG). So more than just being compatible with LNG as fuel, our boilers can make moving to LNG simpler and more cost-effective.
Why choose Alfa Laval Aalborg boilers for LNG?
Moving to LNG involves more than the engine. Your fired boiler should also be prepared, and Aalborg boilers are today’s LNG standard.
- Produce steam using LNG as fuel – with dual-fuel backup in the form of oils and biofuels
- Safely manage BOG using the boiler (gas valve train required for boilers exceeding 45,000 kg/h capacity)
- Prepare for tomorrow cost-effectively, choosing an LNG-ready configuration to facilitate later upgrade
- Enjoy peace of mind, ensured by robust design, global service and our 100+ years of boiler expertise
A flexible boiler platform for moving to LNG
Alfa Laval Aalborg boilers are ready for any fuel in the marine transition to zero carbon – and they can also be configured as electric hybrids. In addition to working with oils and biofuels, they can be set up to use one alternative fuel of your choice. For a growing number of shipowners, that choice is LNG, which reduces CO2 emissions by up to 25%.
If you’re not ready to move to LNG now, you can still future-proof your vessel with LNG in mind. New Aalborg boilers can be installed in an LNG-ready configuration, with a gas-compatible burner, an adapted pressure part and space reserved to add LNG components later. That means not only a lower investment today but also a cost-effective LNG conversion down the road.
LNG boilers for safety as well as steam
Alfa Laval is no stranger to LNG safety, having supplied Gas Combustion Units and inert gas systems to LNG carriers for many years. That experience is reflected in our LNG boiler solution. Besides producing steam with LNG as the fuel source, our solution lets you:
Control LNG tank pressure
The boiler can be used to combust LNG boil-off gas (BOG), producing steam that can be utilized or fed to the dump condenser. This can beneficial during a port stay, for example, when the energy from an auxiliary engine cannot be consumed. Since the burner can handle a free flow from the tank if needed, it also provides important safety backup if your compression train should fail.
Dispose of mixed inert gas and methane
Unlike main engines or gensets, the boiler can burn the mix of inert gas and methane that arises during gas freeing and gassing up. At inspection time, this means you can go straight into dry dock, without making a detour for gas disposal.
For most boiler capacities, only the compact gas valve unit is needed for these capabilities. For boilers with capacities exceeding 45,000 kg/h, a full gas valve train is required.
LNG boilers for all types of needs
Our Alfa Laval Aalborg boiler platform accommodates both LNG as fuel and the full range of marine boiler needs. Explore our boiler range below or contact us to discuss the right solution for you.
Aalborg OS-TCi
Small to medium capacities
Intended for auxiliary use, the Alfa Laval Aalborg OS-TCi is a fired marine boiler for producing steam. Designed with helix tubes that provide a larger heat transfer area than conventional solutions, it offers fuel-saving efficiency.
- Design pressure: 10 bar(g)
- Capacity: 1200–8000 kg/h
Aalborg OC-TCi
Composite boiler/economizer
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.
- Design pressure: 10 bar(g)
- Capacity: 1200–6500 kg/h (fired section) / 300–5000 kg/h (exhaust gas section)
Aalborg OL
Large capacities
The Alfa Laval Aalborg OL is a high-capacity, fired marine boiler for producing large amounts of steam or hot water. Available in two design pressures, it has a top-fired design that maximizes heat transfer and minimizes pressure loss.
- Design pressure: 9 or 18 bar(g)
- Capacity: 10,000–50,000 kg/h
A reliable partner on your LNG journey
Today’s Alfa Laval Aalborg boiler platform builds on a century of boiler expertise and our long experience of working with LNG, as well as dedicated research at the Alfa Laval Test & Training Centre. The boilers, burners and all key components – including the gas valve unit and extraction fan for LNG operation – are engineered and produced in house to ensure quality, safety and durability. Likewise, our boilers are backed by our Alfa Laval Marine Service network. You can count on 24/7 Service & Support worldwide, plus a comprehensive service offering to keep your boilers going strong.
Let’s discuss your move to LNG as fuel
Our experts are always ready to support you. Talk to us about our fuel-flexible and future-proof Alfa Laval Aalborg boiler platform – or the other ways we can assist you in moving to LNG.
