Page 74: of Maritime Reporter Magazine (August 2015)

TECH NOTES

NV GL announced the comple- dai Heavy Industries (HHI) and GasLog. tion of the LNGreen joint in- The vessel concept is designed to deliver

LNGreen dustry project, which worked an improved environmental footprint, a

D

Next-generation LNG to develop a next-generation LNG car- higher level of energy ef? ciency, as well rier. The LNGreen joint industry project as an improved boil-off rate and cargo

Carrier Concept brought together DNV GL, GTT, Hyun- capacity, making it much better suited to future trading patterns than existing vessels.

Baltimore’s Full Service

LNGreen investigated the improve- ment of ef? ciency and performance of

Ship Repair Yard

LNG carriers by considering actual op- erational conditions and optimization ?6HUYLFH$Q\ZKHUHLQWKH3RUW in terms of hydrodynamics, machinery and system con? guration. These devel- ?$URXQGWKH&ORFN6HUYLFH opments were based on DNV GL’s in- ?'U\'RFNDQG:HW%HUWK6HUYLFHVDWRXU.H\ tegrated systems engineering approach +LJKZD\/RFDWLRQ

COSSMOS, computational ? uid dynam- ics (CFD) calculations, and a contain- ?)ORDWLQJ(TXLSPHQWWR ment system design, tailored to a spe- 6HUYLFH9HVVHOVDW&DUJR3LHUV ci? c operational pro? le and anticipated trades.

HHI and DNV GL carried out the hy- “A Baltimore Tradition with Over Ninety Years in the Same Location” drodynamic performance evaluation by comparing CFD simulations. Different

The General Ship Repair Corporation

CFD codes were applied for the com- 1449 Key Highway parison of resistance and self-propulsion

Baltimore, MD 21230 performance but different scale effects were also considered.

PHONE:?FAX: 410-752-4650

Cargo containment optimization was

EMAIL: [email protected] investigated by GTT and HHI. The tank shape, necessary reinforcements and

MOBILE 24 HOUR SERVICES FOR: boil off rate calculations, were exam-

EMERGENCY/ MAINTENANCE ined to develop alternative cargo tank

FIELD & SHOP REPAIRS designs that could yield additional cargo

MACHINE SHOP/ FABRICATIONS capacity. With a starting design point of 174,000 cu. m. cargo capacity, cargo tank optimization by GTT and HHI al- lowed for a cargo capacity increase to 182,800 cu. m., while maintaining the same main dimensions (length overall, breadth, draft) and taking into consider- ation newly introduced regulations and compatibility restrictions.

LNGreen 74 Maritime Reporter & Engineering News • AUGUST 2015

MR #8 (74-81).indd 74 MR #8 (74-81).indd 74 8/10/2015 12:55:19 PM8/10/2015 12:55:19 PM