Hawai
Hawai
Background
Recent experience in model tests has shown that moored LNG carriers with their inherent low damping characteristics can be very sensitive to small amounts of low frequency wave energy. The "Shallow Water Hydrodynamics" seminar held in Wageningen February 2005 confirmed that there is a lot of attention for this subject and that work on this subject is currently performed by various independent parties. The sHAllow Water Initiative JIP intends to combine the expertise and efforts of both coastal engineers and hydrodynamic engineers and to focus their work on improving the motion and mooring prediction methods, especially for shallow water.

Objectives
To improve the reliability of offshore (LNG) terminals in shallow water by using the combined expertise of offshore hydrodynamics and coastal engineering to better address key issues regarding motion and mooring prediction methods in shallow water.

Benefits and Deliverables
• A state-of-the-art overview of nearshore wave modelling.
• A wave-splitting tool for model basin tests and guidelines to correctly use this tool, allowing an uniform analysis of model basin tests, independent of basin, contractor or oil company.
• A database of current coefficients for LNG carriers, more appropriate than the currently often used OCIMF database for VLCCs.
• A summary report (20 to 30 pages max.) with detailed guidelines on hydrodynamic aspects on LNG terminal design, summarising all reports and covering the whole scope of work of the HAWAI JIP.
• Software:
a. a special executable version of HYDROSTAR (‘HYDROSTAR-Current’) covering the wave-current interaction in shallow water.
b. a special executable/binary program module for the evaluation of the QTF in multi-directional waves that can be coupled to other diffraction codes.
c. a special executable/binary program module for new formulations of second-order wave loads that can be coupled to other diffraction codes.

Price and Duration
The total participation fee is € 60,000 for oil companies and € 45,000 for engineering companies, contractors etc., to be paid in three installments (2005, 2006 and 2007).
The project is scheduled to start 4th quarter of 2005 and scheduled to end 3rd quarter of 2007, covering a duration of 2 years.
More details on the budget and schedule can be found in the project plan.

Contract
The contract for the HAWAI JIP will be similar to the SAFE-FLOW/Offloading Operability projects, reflecting the above situation. The specific aspects about the use of software modules from BV will be considered in the contract as well.

Project Organisation


 Overall project management
MARIN
(Radboud van Dijk)

WP 1
Nearshore wave modelling
Delft Hydraulics
Otto Weiler

 WP 2
Model testing
MARIN
Radboud van Dijk

 WP 3
Hydrodynamic wave loading
Bureau Veritas
Xiao Bo Chen

 WP 4
Validation and guidelines
SBM
Mamoun Naciri

 Case study ‘LNG Carrier in nearshore wave field’
MARIN, Delft Hydraulics, TU Delft


 

Contact
For further information, please contact:
Radboud van Dijk (r.r.t.van.dijk@MARIN.NL, +31 317 493 224)

You can also contact:
Bas Buchner of MARIN (b.buchner@MARIN.NL), +31 317 493 333)
Mamoun Naciri of SBM (mamoun.naciri@singlebuoy.com, +377 92 05 17 96)
Xiao Bo Chen of BV (xiao-bo.chen@bureauveritas.com, +33 1 4291 3381)
Martijn de Jong of Delft Hydraulics (martijn.dejong@wldelft.nl , +31 15 285 8596)

Initiative Kick-off Meeting
FPSO week
Date: Tuesday October 25, 2005, 09:00 – 17:00
Venue: TWI, Granta Park, Great Abington, Cambridge, UK
www.fpsoforum.com

Project Plan

Letter of Intent

Outline&Seminar (PDF)

Disclaimer | print