Wärtsilä to Provide Solutions and Maintenance for Höegh FSRU and LNG Vessels



The technology group Wärtsilä has been contracted to provide both equipment and maintenance for FSRU and LNG carrier vessels of Norway based operator, Höegh LNG. The orders were booked in the first quarter of 2017.


Two new 170,000 m3 LNG carrier vessels being built for Höegh LNG at the Samsung Heavy Industries (SHI) and Hyundai Heavy Industries (HHI) shipyards in Korea will each be powered by four Wärtsilä 50DF dual-fuel engines. There is an option for a further three vessels in the SHI series.


The two vessels will also feature the latest Wärtsilä regasification technology to operate as FSRUs. The regasification solution to be supplied to these vessels represents Wärtsilä’s latest development in this field. It is based upon the use of seawater and glycol as the intermediate heating medium, a lighter and less space demanding alternative than earlier systems with a propane based heating system. By using seawater as opposed to steam heated solutions, the CO2 emissions are notably reduced. Furthermore, it will be delivered as a complete module, thereby making installation easy. Typically the value of regasification projects is between 20 to 40 MEUR, based on the size, scope, capacity and operational profile of the equipment.


Under a new five year technical management agreement, Wärtsilä will provide support for eight ships of the company’s existing fleet as well as for its two new vessels currently under construction. The services of the technical management agreement include Condition Based Maintenance (CBM) to optimise the availability, reliability, and performance of the Wärtsilä engines. It also includes maintenance planning and advisory services involving the combined technical expertise of both Wärtsilä and Höegh LNG specialists. The customer will also have access to Wärtsilä’s extensive global service network.


“Our long-standing relationship with Höegh LNG is again strengthened through this supply of our state-of-the-art engines and regasification systems, as well as the technical management agreement that will ensure optimal performance of the company’s entire fleet,” says Cato Esperø, Sales Director, Wärtsilä Norway.


“We have confidence in Wärtsilä as a provider of well designed and engineered solutions, and are pleased with the choice of a strong provider as regards to the engines and regasification systems” says Øivin Iversen Chief Technical Officer Höegh LNG. The technical management agreement is also very important. Wärtsilä’s CBM service enables excellent predictability of the engines’ condition and maintenance requirements, which is of great value to our operations,” says Gorm Hillgaar, Senior Vice President Fleet Management Höegh LNG.


Wärtsilä 50DF engine


Designed to give high output with fuel flexibility, low emissions, efficiency and reliability, the engine can be run on either natural gas, light fuel oil (LFO), or heavy fuel oil (HFO). It can smoothly switch between fuels whilst operating and is designed to provide the same output regardless of the fuel. The Wärtsilä 50DF engine operates on the lean-burn principle, enabling a high compression ratio, which in turn increases engine efficiency, reduces peak temperatures, and therefore also reduces NOx emissions.


Wärtsilä LNG Regasification


Wärtsilä’s portfolio of LNG regasification technologies represents an industry benchmark in terms of energy efficiency, robustness, and operational flexibility. The company has delivered and commissioned numerous floating LNG regasification plants based on either closed or open loop regasification technology. Wärtsilä has also delivered modularised regasification plants for jetty installations. These facilitate a much shorter construction time compared to conventional land based LNG regasification terminal projects.




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