GTT (Gaztransport & Technigaz) and its partner Cryovision announce the launch of an innovative monitoring system to help reduce the effects of liquid motion in LNGCs (Liquefied Natural Gas Carriers) , including extra boil-off of LNG cargo, due to “sloshing” inside the vessel’s tanks.
The new tool, SloShield, uses an advanced algorithm that allows LNG carrier crews to constantly monitor the vibrations in each tank’s structure due to specific sloshing activity by consulting easy-to-read screens in real-time, thus allowing them to make critical decisions based objective indicators to optimize the ship’s operation.
This first generation SloShield is the result of more than three years of prototyping onboard an LNGC in real operational conditions, which qualifies it as a sea-proven, safe and reliable system. It was developed from a joint effort between GTT engineers, drawing on significant amounts of actual historical data on liquid motion in navigational situations, and the Cryovision team which has packaged the offer and will install the tool.
SloShield will be distributed by Cryovision on a turn-key basis that includes: studies, class validation, procurement, erection and commissioning. In addition, GTT experts are available to review the sloshing data, together with the operational environmental parameters to capitalize on each vessel’s specific experience. The SloShield package combines the best of GTT’s unrivalled expertise in measuring and analyzing sloshing activity at sea and Cryovision’s field experience and reactivity.
“Flexibility and reliability are key words for us”, said Julien Glory, Cryovision COO. “A SloShield™ installation can even be done while LNGCs are at sea to accomodate customer constraints and schedules.”