A new report, available from the US National Research Council, has found compressed natural gas to have some of the lowest greenhouse gas emissions amongst currently available vehicle fuels. The report examined the the hidden costs of energy production and use, such as the damage air pollution imposes on human health and the environment, and estimated dollar values for hidden components. Comparisons were made for 2005 and 2030.
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“Comdyne cylinders exposed to acid in a collision or other mishap should be depressurized as soon as possible to prevent rupture”. (CVEF)
The US Clean Vehicle Education Foundation (CVEF) has recently completed an investigation into the cause of a cylinder failure in a 1996 OEM Dodge Ram van B250 that occurred on August 11, 2009. The privately owned vehicle had just been refueled and had been driven approximately 1 mile when the Comdyne Type 3 cylinder mounted longitudinally on the right side of the vehicle ruptured. Upon inspection of the cylinder debris evidence of stress corrosion cracking (SCC) of the glass epoxy composite wrapping was noted.
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CNG Motorcycles - banned in Pakistan for now
Pakistan’s Oil and Gas Regulatory Authority (OGRA) has imposed a ban on use of CNG in motorcycles, because it is not covered under existing Pakistan CNG Rules 1992/Standard Code of Practice, citingr reasons of public safety. The request for compliance has been issued to CNG station operators, licensees and all CNG users, according to a report confirmed by an OGRA official to NGV Global. The ban appears to have arisen in the face of CNG-powered motorcycles being advertised for sale but without the necessary licencing approvals, and will also discourage backyard conversions with their inherent safety issues. There are currently no legal CNG-powered motor cycles in Pakistan, the official said, adding that OGRA is open to consideration of CNG motorcycles for approval though.
NGV safety incidents are undesirable and impose costs on businesses and consumers. On the other hand, they provide a rich source of improvements not only in product safety but also in product performance and reliability. Examples of how several countries have maximised their learning and benefits from NGV safety incidents show a consistent pattern of industry best practice that should be used by all stakeholders.
How can the correct learning be acquired and its benefits maximised? The answer lies in incident investigation processes that use suitable investigators, cooperation with NGV industry bodies and the timely dissemination of the findings to the wider NGV community.
Compressed Natural Gas (CNG) safety is the responsibility of all industry stakeholders. Independent consultant, Dr Hien Ly argues the case.
All over the world clean energy is being used to mitigate environmental concerns and provide relief from the rapidly rising prices of petroleum fuels. Compressed natural gas (CNG) has proven itself to be generally a low cost, reliable, safe and environmentally friendly fuel. The characteristics of natural gas actually make it one of the safest transport fuels available, however, as with any energy source, safety considerations should always be paramount.
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