SAFER, SMARTER, GREENER
OIL & GAS
RIGSPRAY JIP
Sea spray icing poses a threat on multiple levels from personal safety and hindering operation of
essential components to jeopardizing the stability and integrity of offshore structures and vessels.
Background
Sea spray icing, also known as marine icing, should be
addressed in the design phase to ensure the safety of personell
and the integrity of the structure (NORSOK N-003 and ISO
19906). Existing tools for the prediction of sea spray icing on
offshore structures and vessels are based on scarce sea spray
data. This sea spray data is based on measurements on relatively
small vessels and not suitable for the estimation of icing on all
types of installations. This project will adress this challenge by
obtaining new data, and through data analysis and modelling of
sea spray give the industry increased confidence in sea spray
icing predictions.
The project builds on a model developed in the MARICE
project, where a CFD tool to estimate icing on ships and
offshore structures was developed. By further developing the
DNV GL AS, NO-1322 Høvik, Tel: +47 67 57 99 00 www.dnvgl.com
MARICE tool, icing on a specific location and structure could be
estimated. This relies on a proper description of the sea spray,
which is currently lacking. To increase the confidence in the sea
spray icing estimates an improved model of sea spray is needed
and will be developed in the RigSpray JIP.
Objectives
The project will be executed in consecutive phases:
� Phase 1; test and further develop measurement equipment
for the observation programme
� Phase 2; collect sea spray data from selected installations and
develop the CFD sea spray model
For more information please contact:
[email protected]
25 Mar 2015