Wärtsilä LNGPac™ is a complete Fuel Gas Supply System for LNG fuelled ships. It includes several modules, including the LNG storage tank, bunker station, process equipment, and control and monitoring system. Wärtsilä can deliver tailor-made or standard LNG systems for different ship types, integrated with the rest of the Wärtsilä portfolio.
What it is:
Wärtsilä LNGPac is a complete fuel gas supply system for LNG fuelled ships. It brings together the equipment needed to store, bunker, monitor and supply LNG safely to onboard consumers.
Why it matters:
For yards and ship designers, the fuel gas supply system is a key part of making an LNG fuelled vessel work safely and efficiently. LNGPac can be integrated with other Wärtsilä equipment, including engines, automation and gas valve units, helping the fuel supply system work as part of the wider onboard solution.
How it works:
LNG is bunkered from the bunkering station to the LNG tank through an insulated pipe. The process equipment then ensures the correct gas temperature and pressure for the engines and other gas consumers.
Where it applies:
When a vessel is designed to use LNG, the fuel gas supply system affects more than fuel storage. It must support the vessel’s operational requirements, safety requirements and classification society requirements from the beginning of the project.
This is why fuel supply equipment should be considered early in the vessel design. Wärtsilä conducts dedicated engineering from the beginning of the project so that the LNGPac system can be matched to the project’s specific operational, safety and classification requirements.
For yards and designers, this helps reduce integration complexity. LNGPac can be delivered as a standalone system or as part of a complete propulsion system, and it can be integrated with other Wärtsilä equipment such as engines, automation and gas valve units.
Wärtsilä LNGPac gives you a complete LNG fuel gas supply system that can be adapted to the needs of the vessel project. Depending on the project, Wärtsilä can deliver standard or tailor-made LNG systems, with approved solutions using different storage technologies and configurations.
For projects using Wärtsilä engines or other Wärtsilä equipment, LNGPac can support smoother system integration because it is designed to work with the rest of the Wärtsilä portfolio. The solution is also supported by lifecycle services, remote operability, data analysis possibilities and training options such as IGF training and an LNGPac simulator.
The Wärtsilä LNGPac system supports a range of LNG storage technologies, including IMO type C and membrane tank solutions. The system portfolio includes patented Type C pressure storage tank technology and patented Tank Connection Space designs, allowing the LNG system to be adapted to different vessel designs and operational requirements.
In operation, LNG is bunkered from the bunkering station to the LNG tank through an insulated pipe. The necessary process equipment is installed in a separate unit, which can either be mounted directly to the LNG tank or placed remotely from the tank. The main process equipment ensures the correct gas temperature and pressure for the engines and other gas consumers.
LNGPac also includes Wärtsilä's cold recovery technology, developed to provide additional energy savings on board.
The LNGPac system can be based on pressure build-up principles, a pump, or a combination of pump and compressor.
Other technical options include:
Wärtsilä can deliver LNG systems for propulsion and power generation for applicable ship or engine types, either as a standalone product or as part of a complete propulsion system.
Suitable applications include:
Wärtsilä LNGPac can be delivered as a standard or tailor-made LNG system. The system can include several modules, such as the LNG storage tank, bunker station, process equipment, and control and monitoring system.
Delivery can include process equipment mounted directly to the LNG tank or placed remotely from the tank. Process equipment can also be delivered skid-mounted or built onto the tanks as a fully enclosed unit. Wärtsilä conducts dedicated engineering from the beginning of the project to match the system to operational requirements, safety requirements and classification society requirements.
The solution includes a class-approved control and monitoring system with a separate safety system, with the possibility for remote data collection and analysis.
The LNGPac system features a high degree of automation and remote operability. Its process design and automation system are optimised to support straightforward operation and handling on board.
Wärtsilä LNGPac is supported by experience across ~190 LNG projects ranging from 25 cbm to 4600 cbm of LNG, different tank types and configurations, and different processes.
Wärtsilä works with industry organisations that support the development and adoption of LNG as a marine fuel.
Planning an LNG-fuelled vessel often starts with questions about fuel choice, methane emissions and future fuel pathways. These resources provide additional context for evaluating LNG-based solutions.
Comparing fuel options requires reliable technical data. Wärtsilä’s Methane Number Calculator is a tool to support fuel-related assessments and decision-making. The calculation result indicates whether or not the given gas quality is suitable for use in Wärtsilä dual-fuel engines.
If you are selecting the fuel supply equipment for an LNG fuelled ship, Wärtsilä can help you define a fuel gas supply system that fits the vessel design, operational requirements and wider onboard solution. Contact Wärtsilä to discuss how LNGPac could support your project.
The contents of this page have been written with the help of AI. A Wärtsilä expert has checked and verified these contents.
