Field study of composite NGV fuel cylinders. Final report, May-September 1994

Technical Report · Thu Sep 01 04:00:00 EDT 1994

OSTI ID:6916987

Connolly, M P; Hanley, J J; Aaron, V D

The objective of the study was to survey composite compressed natural gas (CNG) cylinders in natural gas vehicle (NGV) service. A total of 56 hoop and full-wrapped composite cylinders that had been in service for periods up to 11 years were tested with acoustic emission (AE) and were subsequently pressurized to failure. The burst pressure was then compared to the burst pressure of a new cylinder in order to quantify any degradation that may have occurred in service. The test results showed that the cylinder data can be divided into two populations; the majority (54 out of 56) of the cylinders tested experienced little degradation in burst pressure over 11 years. However, two of the cylinders tested exhibited a large loss in the burst pressure. These low burst pressures were due to stress corrosion cracking of the E-glass.

• Research Organization: Southwest Research Inst., San Antonio, TX (United States)
• OSTI ID: 6916987
• Report Number(s): PB-95-145330/XAB; CNN: GRI-5094-205-2841
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
022000* -- Petroleum-- Transport
Handling
& Storage
33 ADVANCED PROPULSION SYSTEMS
330800 -- Emission Control-- Alternative Fuels
36 MATERIALS SCIENCE
360603 -- Materials-- Properties
ACOUSTIC EMISSION TESTING
ACOUSTIC TESTING
CHEMICAL REACTIONS
COMPOSITE MATERIALS
COMPRESSED GASES
CONTAINERS
CORROSION
ENERGY SOURCES
FAILURE MODE ANALYSIS
FIBERGLASS
FIELD TESTS
FLUIDS
FOSSIL FUELS
FUEL GAS
FUEL SUBSTITUTION
FUELS
GAS CYLINDERS
GAS FUELS
GASES
MATERIALS
MATERIALS TESTING
NATURAL GAS
NONDESTRUCTIVE TESTING
STORAGE
STRESS CORROSION
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
TESTING