liquefied gas carrier smm bsz - dnvgl-source.com · e.g. lng supply chain – with focus on lng as...
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GL – Your competitive edgeTake the lead through innovation
Liquefied Gas CarrierBenjamin Scholz September 2012
Liquefied Gas Carrier | September 2012 | No. 2
Liquefied Gas Carrier
GL offers class related services and
consultancy regarding Gas Carriers
GL participates in the IGC Code revision
Member of different associations e.g.
SIGTTO
Class notation BGF
• for Gas Carrier using the boil off in the
machinery space
Number of Liquefied Gas Carrier
• FiS 105
• NB 18
123
Liquefied Gas Carrier | September 2012 | No. 3
Ethylene Gas Carrier
source: Clarksons World Fleet Register
Ethylene Gas Carrier (worldwide 168 vessel)
32%
20%12%
9%
7%
7%
13%
GL
BV
DNV
RINA
LR
NKK
Others
Liquefied Gas Carrier | September 2012 | No. 4
Small Scale LNG Carrier – Semi refrigerated
source: Clarksons World Fleet Register
Small Scale LNG Carrier - IMO Type-C
(worldwide 10 vessels)
60%
10%
10%
20%
GL
BV
DNV
on Order
Liquefied Gas Carrier | September 2012 | No. 5
Approval of tank Systems
Approval in Principle for GTT NO-96 and
Mark III in 2007
Detailed Analysis of different Tank
systems (IMO type A, B, C)
Liquefied Gas Carrier | September 2012 | No. 6
GL Engineering Service:e.g. Temperature Calculations for the carriage of LNG
Established designs for the transport of LPG/LEG are under evaluation regarding use
for cargoes with lower saturation temperatures (LNG) or higher densities (CO2)
LNG (-163°C)LPG (-104°C)
Liquefied Gas Carrier | September 2012 | No. 7
GL Engineering Service:e.g. Prediction of Sloshing induced Impact Loads
Computational Procedure
�Definition of relevant tanks
�Prediction of response operators for
ship motions for different speeds and
loading conditions
�Identification of critical tank fill levels
based on resonance period and
amplitude of motions
�Computation of fluid motions inside
tanks using CFD
Liquefied Gas Carrier | September 2012 | No. 8
Increasing demand for Liquefied Gas Carriere.g. LNG supply chain – with focus on LNG as ship fuel
production large carrier main terminal
end user bunker vessel local terminal small feeder
