1

I have an old toyota corolla e 100 sedan. A CNG cylinder is installed in my car because here it is cheaper than octane. I was thinking about setting up a good audio system in my car, which includes a 12 inch or mayb an 18 inch sub woofer. The cng cylinder is installed in the trunk. If I install a sub then it has to be put in the trunk too. So I was wondering would it be a problem for the cylinder? Like when I use really high volume with high bass bits? Will the sub woofer vibration cause any risk for the cylinder? TIA.

Improve this question
1
  • CNG = Compressed Natural Gas for those that don't follow. – Nick G Sep 21 '15 at 13:52
3

Fuel needs air to burn/explode/ignite

This video is ample evidence of that.

Acoustic vibration will have no impact on a CNG tank whose integrity isn't compromised (i.e. doesn't leak).

Even if the tank leaks gas into its surroundings, there needs to be a spark or naked flame to result in an explosion. Acoustic vibration alone won't be enough to cause ignition.

If there was even a remote possibility of igniting an air-fuel mixture with acoustic vibrations it would have been explored as an alternative to (comparatively complex) spark-ignition systems.

That said, there is more than one way a CNG tank can go bang. Consider the following:

  • electrical hazards from installing the subwoofer (electrical shorts, heating effect of high current)
  • mechanical integrity of the tank (leaks, corrosion)
  • heat in small enclosures
Improve this answer
3
  • That was really helpful. Now I just got one question. I did not get the last line of your answer. By saying "heat in small enclosures" did you mean the sub woofer enclosure? If not then what? You know a speaker can get a little bit heat when it produces a lot of dB. So I was just curious which enclosures did you mean? – Wahid Masud Sep 21 '15 at 16:52
  • @WahidMasud I meant the space where the tank is installed. If the addition of your system is generating a lot of heat then the enclosure temperature will rise – Zaid Sep 21 '15 at 17:52
  • 1
    the good thing is, standard CNG install can take a lot of hat before problems occur. Those canisters are robust – Rory Alsop Sep 21 '15 at 18:24

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.