Lloyd’s Register and GTT Reveal LNG Study Results

Thursday, May 08, 2003
Lloyd's Register and Gaz Transport & Technigaz (GTT) have jointly commissioned MARINTEK to carry out a series of model tests to investigate the effects of sloshing in partially filled prismatic LNG tanks. A typical four-tank ship design with a capacity of 140,500 cu m has been used for the purposes of the study. For the moment, the results show that: for the filling levels below 10% of tank length and over 70% of tank height the tests showed good results based on the test results, it is possible to increase the currently accepted authorised filling range and to decrease the upper limit to 70% of tank height. This new limitation allows any amount of cargo to be carried in a 140,500 cu m LNG carrier by suitable distribution between cargo tanks. The recent work carried out at MARINTEK involved the use of a 1:60 scale model to determine the pressure loads from sloshing-induced impacts. The model testing is built on the previous work commissioned by Lloyd’s Register at MARINTEK to identify the potentially critical load cases for a typical 140,500 cu m LNG carrier and modeled on the behaviour of a No. 2 tank, which is considered to be the tank generally most exposed to potential sloshing damage on an LNG carrier. The tank was tested for a full range of filling levels. Lloyd’s Register and GTT have reached an agreement to carry out additional testing to confirm the loads that were predicted during this recent series of experiments for filling heights below 70% of the tank height. When these tests are completed, Lloyd’s Register and GTT will issue a further joint statement.
Maritime Reporter August 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Fuels & Lubes

MN 100: Total Lubmarine

Le Diamant B – 16, rue de la République 92922 Paris-La-Défense Cedex, France E-mail: rm.total-lubmarine@total.com Web: www.lubmarine.com The Company: Total

Brent Oil Hits 26-month Low Under US$97

Brent crude oil on Monday slumped to its lowest in over two years, below $97 per barrel as lacklustre economic data from China, the world's top energy consumer,

DW Release World Drilling & Production Forecast Update

The new quarterly issue (Q3) of Douglas-Westwood’s (DW) World Drilling and Production Forecast (DWD&P) has been released. Major changes have been seen in the forecasts for Iraq, Libya and Uzbekistan.

 
 
Maritime Careers / Shipboard Positions Maritime Security Maritime Standards Navigation Offshore Oil Pod Propulsion Port Authority Ship Electronics Ship Simulators Sonar
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1025 sec (10 req/sec)