Great Ship - Hanjin Muscat

Tuesday, December 07, 1999
Built by Hanjin Heavy Industries for the transportion of liquefied natural gas (LNG) between Oman and Korea, Hanjin Muscat is a 918 ft. (280 m), 68,524-dwt ship using Gaz Tranport's No. 96-2 membrane cargo containment system. The vessel was built with only four cargo tanks, contained within a complete double side/bottom/bulkhead/deck trunk structure, with top and bottom wing tanks. The side and bottom spaces from integral port and starboard water ballast tanks, divided by the duct keel. This double-hull structure not only protects the tanks from external damage, but insulates the outer hull against critical steelwork fractures cased by the low temperatures (-163 degrees C and atmospheric pressure) at which cargo is transported. Tank insulation is formed by primary and secondary membranes of 0.7 mm Invar (36 percent nickel steel) sheets, in conjunction with expanded perlite beads contained in plywood boxes attached to the inner hull by stud bolts. This combination is able to sustain the liquid pressure, also static and dynamic loads, and to limit the daily boil-off rated to 0.15 percent of cargo volume. Within each tank, the filling line and two Ebara 1,700 cu. m./hr. electric submersible pumps are arranged on a tripod mast. These pumps are used for unloading purposes, loading being carried out by shore pumps, with vapor produced in the operation returned to shore by the ship's two 32,000 cu. m./hr. compressors. Other equipment includes a 26,000 kg/hr. main vaporizer, and 7,600 kg/hr. forcing vaporizer, 13,800 N cu. m./hr. inert-gas generator, two 140 N cu. m./hr. nitrogen generators and two 1,250 cu. m./hr. vacuum pumps. Four 50 cu. m./hr. stripping/spray pumps, 550 cu. m./hr. emergency cargo pump, and two sets of 20,000 kg/hr. boil off/warm-up heaters are also fitted. Two crew members can operate and monitor the entire ship from a centralized administration and control center on accommodation deck D, using two separate Yamatake-Honeywell TDC 3000 Basic automation systems. These serve cargo/ballast operations and machinery/electric generation, respectively, with Whessoe tank level gauges, a Foxboro custody transfer systems, and Mitsubishi total boil-off gas control system. Mitsubishi also supplied a loading calculator to assist cargo operations, also an automatic combustion control, burner management and main turbine controls. Other equipment includes an AMCO turbo feed pump control system and Kvaerner ship performance monitors for the machinery installation. A Mitsubishi MS 40-2 cross-compound steam turbine developing 38,900 shp drives a fixed propeller through a double-reduction gearbox to give a service speed of 20.3 knots, with steam generated from two vertical, two-drum watertube boilers, burning oil or boil-off gas, or a combination of both. Two 3,450 kW turbo alternators and a similar sized diesel-alternator set satisfy electrical requirements. A water scoop system is provided for cooling the main condensor. A Mitsubishi total navigation system is integrated with three radars, echosounder, a Doppler sonar and docking system supplied by Atlas Elektronik, with additional aids including a Tokimec chart plotter and two GPS navigators.
Maritime Reporter June 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Legal

Brazilian Police to Probe Nuclear Submarine Program

Brazilian federal police are investigating potential irregularities in a military program that aims to build a nuclear-powered submarine in partnership with France by 2023, newspaper Folha de S.

Philippines Mulls Massive Military Spend

Philippine generals on Wednesday asked Congress to almost triple annual defence spending over the next five years to upgrade equipment amid an escalating marine dispute with giant neighbour China.

Sembcorp Marine: No Sete Brasil Payments This Year

Singapore's Sembcorp Marine has not received payment from Sete Brasil on drillship projects this year and may slow down the projects if the situation persists, a company executive said on Wednesday.

Shipbuilding

Brazilian Police to Probe Nuclear Submarine Program

Brazilian federal police are investigating potential irregularities in a military program that aims to build a nuclear-powered submarine in partnership with France by 2023, newspaper Folha de S.

General Dynamics Tops Q2 Estimates

General Dynamics Corp, a maker of ships, tanks and business jets, reported higher-than-expected quarterly earnings and revenues on Wednesday, and sharply raised its outlook for full-year profit.

Eastern Launches Second MPSV for Hornbeck

Eastern Shipbuilding Group, Inc. has launched the second of two 302’x76’x26’ multipurpose service vessels in the HOSMPSV 310ES series for Hornbeck Offshore Services, LLC.

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Naval Architecture Navigation Offshore Oil Ship Electronics Ship Repair Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1357 sec (7 req/sec)