Demonstration of the Durability of TUFFSHELL™ CNG Fuel Tanks
Date Published: 2005-04-11
Paper Number:2005-01-1681
DOI: 10.4271/2005-01-1681
Author(s):
Ken C. Halvorsen - General Dynamics
Norman L. Newhouse - General Dynamics
William E. Dick - General Dynamics
Abstract
Five type 4 all-composite compressed natural gas (CNG) fuel tanks produced in 1994 were acquired to study the effects of time and environmental exposure. Tank durability was demonstrated by the ability of the tanks to meet or exceed the ANSI/CSA NGV2-2000
1
standards after 9 years of field service. All tanks passed the NGV2-2000 standard production test requirements, including hydrostatic pressurization testing and standard leak testing. NGV2-2000 design qualification tests were performed on three of the tanks. Design qualification testing included liner and composite mechanical properties, cyclic pressurization, burst testing, and permeation testing as defined by NGV2-2000. All tanks exceeded the NGV2-2000 test requirements and exhibited no adverse effects from time, environment, and cyclic pressurization.
File Size: 340K
References
ANSI/CSA NGV2, “Basic Requirements for Compressed Natural Gas Vehicle (NGV) Fuel Containers”, CSA International, 8501 East Pleasant Valley Road, Cleveland, OH 44191, 2000
ASTM D-638-03, “Standard Test Method for Tensile Properties of Plastics”, ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States
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