As LNG becomes increasingly viable and popular as a marine fuel, the company has launched a new technical solution for the Wärtsilä LNGPac, a fully integrated fuel gas handling system introduced in 2010, as wells as improvements to the coveted Wärtsilä Gas Valve Unit (GVU). The new, compact and easy to install system will be officially launched during the ONS 2014 conference and exhibition being held in Stavanger, Norway, this week.
Wärtsilä LNGPac comprises a complete system for LNG fuel handling, which when introduced included the bunkering station, the LNG tank and Tank Connection Space, and has proven to be a valuable enabler of LNG fuel for marine applications with more than 20 systems in operation or under construction. By upgrading the system into a more compact and technically advanced version, safety and reliability will be enhanced, the capital and operating expenditures will be reduced, and LNG storage volume will be maximized.
The new system also has fewer moving parts, and therefore less maintenance is required, while its compact design and advanced integration makes installation at the shipyard faster and easier. Moreover, the heating media skid, used to evaporate LNG for pressurizing the storage tank and to provide the engine with the correct gas temperature, has now been removed as have the pumps. The new LNGPac directly utilizes the engine’s cooling water, which results in fewer interfaces and less installation work for the shipyard.
The Wärtsilä GVU is a module located between the LNG storage system and the dual-fuel (DF) engine. It is used to regulate the gas pressure and ensure a safe disconnect of the gas system should that be necessary. By combining the LNGPac and the GVU into a single, fully integrated system, considerable space can be saved and a simple ‘plug and play’ solution will save installation time and costs for the yard.