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 July 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Fuels & Lubes

Iraqi Kurdistan Oil Shipments Reach 8.8m Barrels

Iraqi Kurdistan has shipped 8.8 million barrels of oil from the Turkish port of Ceyhan since May, Turkish Energy Minister Taner Yildiz said, as the autonomous region

Rosneft and AVTOVAZ Strengthen Strategic Cooperation

Rosneft President, Chairman of the Management Board Igor Sechin and AVTOVAZ President Bo Inge Andersson signed an Agreement of development of strategic cooperation,

Ecospeed Fuel and Cost Saving Solutions at SMM

Ecospeed announced it will exhibit its line of fuel and cost saving solutions at SMM in Hamburg. Ecospeed and fuel savings Routine in-water cleaning results

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Naval Architecture Pipelines Pod Propulsion Port Authority Ship Electronics Ship Repair 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: 0.1476 sec (7 req/sec)