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 October 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Fuels & Lubes

Thordon’s COMPAC for US’ Largest Containerships

Thordon Bearings has signed a contract to supply COMPAC seawater-lubricated propeller shaft bearing solutions to two Jones Act containerships under construction at the Aker Philadelphia Shipyard Inc.

‘VoyagOR’ Project Seeks Shipping Participants

Shipping companies are being sought to assist the ‘VoyagOR’ project, which aims use route optimization systems to make shipping operations more cost-effective.   The

Chevron Cylinder Oil Gains NOL from Wärtsilä

Chevron Marine Lubricants’ 100BN cylinder oil, Taro Special HT 100 has received approval for its use in another engine range – products made by Winterthur Gas & Diesel Ltd.

Maritime Contracts Maritime Security Naval Architecture Navigation Offshore Oil Pipelines Port Authority Ship Electronics Ship Repair Sonar
rss | archive | history | articles | privacy | 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: 0.1478 sec (7 req/sec)