A versatile LNG-fueled multipurpose LO/LO (Lift-on/Lift-off) vessel being built for Norwegian shipowner Egil Ulvan Rederi is to have an innovative fuel-gas supply system supplied by MAN Cryo – MAN Energy Solutions’ marine LNG fuel-gas-system manufacturer.
Scheduled for delivery in late 2020, the 3,500 dwt-vessel will have a length of 86 m and breadth of 19.5 m. It will service the round trip between Tromsø in northern Norway to Østfold in the southeast.
It is being built at Turkey’s Tersan shipyard to Førde, Norway, designer Multi Maritime’s MM85CC design.
It will be the shipbuilder’s sixth LNG-fueled since 2016 to have a MAN Cryo marine fuel-gas system.
The vessel’s multipurpose design provides it with reefer capacity, a refrigerated hold and elevators for palletized goods, as well as the capability to discharge fish food at fish farms along its route.
Arild Hoff, CEO at Egil Ulvan Rederi, said: “MAN Cryo has been chosen as supplier for the LNG fuel-gas system based on the company’s track record of complex LNG solutions. There was no doubt early in the process that MAN Cryo was the preferred supplier because they showed the right level of understanding and knowhow to meet our requirements.”
VERTICAL FUEL TANK
Louise Andersson, Head of MAN Cryo, said: “This specialized vessel makes its own unique demands for reliability and redundancy and we are happy to rise to the challenge with an innovative solution that includes a vertical fuel tank.”
MAN Cryo’s scope of supply for the vessel covers:
- a vertical, vacuum-insulated 364 cu.m LNG tank
- a complex tank-connection space with two redundant LNG supply trains, based on both a pump and a pressure-build-up unit
- an LNG cold-recovery evaporator
Worldwide, there are only a few vertical LNG tanks in operation that are classed for marine applications. MAN Cryo has produced vertical LNG tanks for marine fuel-gas systems since 2011 and can cite reference projects ranging from 89 to 400 cu.m gross volume.
Vertical tanks offer advantages that include:
- less impact on stability due to smaller liquid surface
- less likelihood of creating sloshing
- increased hydrostatic pressure, facilitating fuel flow.