ABS and HHI Evaluate LNG Carrier Designs for Ice Operations

Monday, March 21, 2011

(Houston, TX---) Class society ABS has been collaborating with Korea’s Hyundai Heavy Industries (HHI) to evaluate the basic design and containment system parameters for an LNG carrier operating in an Arctic environment.  Specifically the carrier would operate a trade route from the Kara Sea and Barents Sea to Europe or the United States. 

The industry has accumulated plenty of operating experience for LNG carriers, however, experience of large LNG carriers operating in Arctic waters is very limited.  There are many technical concerns related to the structural strength of LNG carriers subject to intensive ice loads.  These include strengthening of the hull, the interaction of the hull structure with the containment system, minimum propulsion power requirements and strength of the propeller. 

To address these issues, ship and ice interaction scenarios have been investigated primarily using Finite Element (FE) analysis tools.  Based on FE results and assessment criteria, the effects to  the cargo containment systems in LNG carriers can be evaluated.  ABS has combined its LNG classification experience with the knowledge gained through its Harsh Environment Program to provide industry with guidance on these vessels to be operated in ice-covered waters.  ABS has developed specific analysis procedures for assessing the interaction between ice and the hull structure under different operational scenarios.  This is a key element in evaluating the performance of LNG carriers under ice loads. 

For the HHI evaluation, ABS is undertaking a hazard identification (HAZID) study to identify potential hazards and risks associated with the potential effects of ice navigation as well as providing an assessment of the Gaztransport & Technigaz Mark III membrane containment system (GTT Mark III) in an ice operations scenario. 

According to ABS Technology & Business Development Director Hoseong Lee and the lead investigator for the evaluation, the HAZID study is divided into three main categories:  design issues, natural and regulatory environments and operational scenarios.  In terms of design, the evaluation will take into consideration the mode of operation, hull form, ice loads on hull and vibration.  From a natural and regulatory perspective, the evaluation will review Russian requirements as well as met-ocean and ice data from the region.  Lastly, in terms of operational scenarios transit in ice-covered waters will be examined, which includes such conditions as high and low speed transit, low speed backward in ice, and high speed transit in iceberg infested areas as well as operation near receiving terminals which take into account maneuvering, berthing and emergency operations with assistance. 

Founded in 1862, ABS is a leading international classification society devoted to promoting the security of life, property and the marine environment through the development and verification of standards for the design, construction and operational maintenance of marine-related facilities.   
 

Source: Eagle.org

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

Environmental

GOST® to Unveil New Products at MSE Conference

GOST® (Global Ocean Security Technologies),announced today that it will highlight its newest commercial maritime products at the 2015 Maritime Security East conference in Jacksonville,

BIMCO Environmental Performance Guide

BIMCO today launched a new, multi-part guidance resource to support ship owners and operators in improving their environmental performance and the efficiency of their ships.

Arctic on Thin Ice

Arctic sea ice - the ice that freezes and floats on Arctic waters - is thinning at a steadier and faster rate than researchers previously thought, a new study finds.

Maritime Safety

Gofree Available on B&G® Zeus2 & Zeus2 Glass Helm

B&G® announced today the availability of the newly launched GoFreeTM wireless, cloud-enabled features on its full line of Zeus2 and Zeus2 Glass Helm multifunction displays.

USCG Monitors Cargo Vessel Near Welch island Ore.

The Coast Guard is monitoring a vessel that lost propulsion and briefly grounded in the vicinity of Welch Island, Wednesday. The crew of the 738-foot bulk

GOST® to Unveil New Products at MSE Conference

GOST® (Global Ocean Security Technologies),announced today that it will highlight its newest commercial maritime products at the 2015 Maritime Security East conference in Jacksonville,

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Naval Architecture Pod Propulsion Port Authority Salvage Ship Repair Ship Simulators Shipbuilding / Vessel Construction 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: 0.1640 sec (6 req/sec)