“Maersk Holyhead” Delivers multipurpose LPG carrier to Maersk Company

Mitsui Engineering & Shipbuilding Co., Ltd. (MES) has delivered the 20,500m3 type multipurpose LPG carrier, “Maersk Holyhead” (HN: 1453), at its Chiba Works to the owner, The Maersk Company Limited, following its sister ship, “Maersk Humber”, delivered to the same owner in 1998.

The vessel with four (4) sets of twin cylindrical tanks, the so-called “bi-lobe” tank design, has a cargo capacity of 20,500m3 and is ranked among the world's largest for this type.

The cargo tanks and cargo systems are so designed as to load twelve (12) kinds of liquefied gases and chemicals including LPG and ammonia. Cargo-handling equipment can cope with a variety of cargoes, and reliquefaction equipment is installed on board the ship to treat gas evaporated from cargo liquid.

The cylindrical cargo tanks are made of TMCP hightension steel developed by MES in collaboration with a steel mill to satisfy severe requirements for low temperature and stress corrosion cracking to accommodate LPG and ammonia.

Two additional cylindrical tanks with a capacity of 110m3 are installed on the upper deck to cope with transport of a small quantity of cargoes, which improves cargoloading efficiency.

The wheelhouse is arranged to allow one-man bridge operation.

Principal particulars: L (o.a.) x B x D d: 159.00m x 26.00m x 16.40m x 10.50m; GT/DWT: 17,980t/23,272t; LPG tank capacity: 20,851m3; Main engine: Mitsui-MAN B&W; 6S50MC x 1 unit; MCR: 9,900ps x 108rpm; Speed: 15.67kt; Complement: 30; and Classification: DNV.