URAL 280,000-dwt Double Hull VLCC
URAL, a 280,000-dwt double hull tanker ordered by Tyrino Company S.A. of Panama, was completed at the Kure Shipyard of Ishikawajima-Harima Heavy Industries Co., Ltd. (IHI) in April 2000. It is the seventh ship of the 280,000-dwt size double hull VLCC series developed by IHI.
Optimized arrangement of cargo and ballast tanks, engine room, pump room and other compartments has achieved remarkably small gross tonnage for this size of vessel.
This vessel shows superior economical performance on both worldwide trade and Arabian Gulf-Far-East trade with its cargo loadability at shallow draft condition.
The DU-Sulzer 7RTA84T top rating develops enough power to voyage at service speed of over 16 knots.
Features
1. The cargo handling system is divided into three groups.
Three (3) steam turbine-driven cargo oil pumps (each 5,000 m3/h) are installed, and an additional steam turbine-driven pump (2,400 m3/h) and two (2) cargo stripping eductors (each 1,100 m3/h) are provided for tank cleaning and stripping operations.
2. For easy maintenance and inspection of double hull water ballast tanks, four (4) tiers of continuous stringers are provided in the side of the tanks. Especially one (1) of them is located at approx. 3 m below upper deck for close up inspection of the upper part of the structure.
3. Remotely controlled valves are provided on the center line bulkhead in double hull water ballast tanks for ensuring adequate ventilation of double bottom space. Also, fixed flammable gas detection system for double hull ballast tanks is installed.
4. Centralized fresh water cooling system is applied for main propulsion and auxiliary machinery systems for achieving longer life, less maintenance and easy operation.
5. Integrated bridge system, which is capable of calculating of ship's position, ship's route planning, ship's route tracking, chart displaying, navigation data displaying and electronics chart producing, is installed.
6. For economical electric power generating in normal oceangoing condition, thyristor inverter shaft generator controlled in combination with exhaust gas economizer's steam turbo generator is provided.
PRINCIPAL PARTICULARS
Length (o.a.) ... 330.0 m
Length (b.p.) ... 316.6 m
Breadth (mld.) ... 60.0 m
Depth (mld.) ... 28.90 m
Draft (mld.) ... 20.411 m
Gross tonnage ... 149,383
Deadweight ... 279,999 MT
Main engine ... DU-SULZER 7RTA84T
MCR ... 27,160 kW x 74.0 rpm
NOR ... 23,090 kW x 70.1 rpm
Speed (max. trial) ... 17.42 knots
(service) ... 16.10 knots
Complement ... 30
Classification ... NK, NS*
(Tanker-oils Flushing point below 60℃), (ESP), MNS*, M0.B
Handling gear ... Hose Handling Crane 20 T x 2 sets
Cargo pump
Cargo oil pumps ... 5,000 m3/h x 145 mTH x 3 sets
Tank cleaning pump ... 2,400 m3/h x 145 m TH x 1 set
Loading capacity (tank)
Cargo oil tank including slop tanks ... 328,458 m3
Heavy fuel oil tanks ... 7,550 m3
Water ballast tanks ... 101,566 m3
