Maybe you have forgotten that gasoline fires are so common and deadly that they aren't even news unless someone catches heart-wrenching images or video of it? See images #35-42 for an example: World news photos: Femen targets Marine, protest nightmare and more - seattlepi.com
There are 2 differences the tank that gets shot is an epoxy tank with liquid hydrogen which boiled off vs the metal container with gaseous hydrogen that's flame you can barely see. And the hindenburg used hydrogen in its gaseous state which is why it went poof in 37 sec's and was the last hydrogen blimp after 20+ hydrogen blimp disasters. So it wasn't erroneously given a bad name it was earned. Lets use a higly flamable gas put it in a ballon then ride around in it. Its like going on a golf course and holding up a 9 iron during a thunder strom and hopeing not to get struck . But had it been a helium like the goodyear blimp it wouldn't have went poof. But theres still the issue of the 10000 psi liquid hydrogen tank that can bleve. There is also the space shuttle challenger in which the liquid hydrogen/oxygen tank bleve. Due to the pressurized burning leaking solid rocket fuel heating up the tank due to o ring leak. But under the majority of normal circumstances liquid hydrogen should be as safe or a litte safer than gasoline Posted via the PriusChat mobile app.
You have both of those wrong. The first one is a high-pressure gaseous hydrogen tank from a Mirai, and the second one (the one I told you to ignore) contained hydrogen stored as a metal hydride, and neither one burned.
But the 1st one is still an epoxy tank so no spark from bullet to ignite. And if you rewatch the second vid there is a flame as he lites up the object in his hand. Hydrogen flames are hard to see during the daylight just like nitromethane. Question so why should i ignore the other vid Posted via the PriusChat mobile app.
It's a COPV - composite overwrapped pressure vessel - made of carbon fiber in a matrix material. That matrix could be epoxy, but so what? Any vehicle hydrogen tanks are going to be made the same way. Because it's about a metal-hydride storage tank, not a gaseous hydrogen storage tank. I only posted it so you could see what happens to a gasoline tank or propane tank when it gets a similar treatment as the hydrogen tank got in the first video. I don't know of anyone using a metal-hydride storage tank in vehicles.
No, it didn't blow. A solid rocket booster had an O-ring leak, burning through a support strut. When that strut failed, the SRB tilted and swiveled, snapping off a wing and puncturing the top of the external tank, which then fell apart and spilled it contents. That spillage produced a massive fireball -- not a real explosion -- but the mortal damage was already done by the SRB swiveling into and breaking other things.
Do you have vid of the toyota doing the bonfire bleve test as that would probably worst case scenario for a hydrogen car. Anyone running propane conversions run steel . I just got off nights so it took a bit before it hit me that its the Toyota's fuel tank. Posted via the PriusChat mobile app.
Or to put is a different way: "Nitrogen" is basically just dry air. AND when they "fill" the tire the first time, there is some air and moisture in there already anyway. There are NO "concerns" about using nitrogen or about not using nitrogen. It is all just a marketing gimmick. If you are driving a race car at 200 MPH, you care about a couple of PSI variation in the pressure because of water vapor inside. If you are driving a car on the street, there is NO SUCH CONCERN.
If it "explodes" due ONLY to heat exposure, then it isn't a real expolsion. It is a sudden release of pressure due to a ruptured container.
That's still an explosion, just without combustion. A burst high-pressure helium bottle is an explosion even though helium can't burn.
Technically correct I guess......but I think most people assume that there was combustion when the term "explosion" is used.
There's definitely debate about these terms. The way I prefer to define them: Implosion - sudden release of pressure inward. Explosion - sudden release of pressure outward. Deflagration - combustion with subsonic flame front. Detonation - combustion with supersonic flame front.
Reminds me of the misuse of the word "volatile", which means "a measure of the tendency of a substance to vaporize", but is commonly misused to mean "very combustible". For example, chroroform is very volatile but not combustible. Gasoline is volatile and combustible. Like when I hear about a tanker accident and the reporter states that the spilled substance was extremely volatile. My response is "OK, but is there a fire danger due to the substance being combustible?".
I use air. Air Good. I'm going to say MUCH more important than using Nitrogen or just regular "air"...is to just check your tires and keep them inflated to proper pressure. If I'm going to invest? It's going to be in a good tire pressure gauge and a compressor to fill my tires. Being attentive to your tire pressure is a good thing. And enjoy the convenient luxury of NOT having to worry about filling with Nitrogen.
I used the word "detonation" further above. That's what happens when a combustible gas + air mixture is ignited. It is a very powerful type of explosion.