SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Gold/Mining/Energy : SOFC vrs PEM Fuel Cells (Debate Forum)
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: CH4 who wrote (45)7/9/1999 4:51:00 PM
From: Sleeperz  Read Replies (1) of 79
 
Crispy critters is not a stark reality. The passenger on the Hindenburg were not cooked by the burning hydrogen but the structure
that caught on fire itself.

Hey I'm am not denying the fact that compressed hydrogen is dangerous. All I am saying is that a compressed hydrogen tank is not similiar to the Hindenburg. I would say a compressed hydrogen tank if
you want a more accurate comparison, would be with an Acetylene tank.
Those acetylene tanks when they go , go with a BIG Bang.

Yes, and once the balloon bursts, the pressure is no longer exerted
in all directions. Watch a fire, see the flame, it rises up.
Put your hand on top of the fire, to the sides, and the underside.
Where would you feel more heat?

Any gas exerts pressure in all directions. If this wasn't true your tire would be flat on one side. Try an experiment, take a kids balloon fill it full of pure hydrogen then place it above your stove element let it float up to the fan hood then turn your stove elements to simmer.

Sort of correct. 3) Should be Oxygen. Most of the air is not used
in combustion.

Any fire requires only 3 things to work it is called a combustion triangle :-
1)Fuel...2)Source of Ignition...3)Air


A gas does not explode. The tank will explode from the rapid combustion of the hydrogen.

Just because the specific gravity of a gas is lighter than 1.0 that does not mean that when a gas explodes it only goes in one direction remember any gas exerts pressure in all directions.

I do not deny the fact that compress H2 will not catch on fire.
A small balloon filled with hydrogen will hardly do much damage since it is not under high pressure and the container is just rubber holding a small amount of H2. Seen it done it. It goes POP like a firecracker.
I do not have any new fangled sensors. I do not want to even use
a PEM FC, it needs pure H2 to run properly. Anything that is Pure is
expensive. I prefer the SOFC myself.

When a gas is compressed into a container you should be able to introduce a source of ignition into it and it won't catch on fire because the air part of the combustion triangle has been displaced from the container by the gas. Now go into the kitchen and stick a lit match into the balloon ... I hope your new fangled sensor can be
wired to auto dial 911 and your phone doesn't melt because it's not made out of platinum.

Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  

HomeMailHotSubjectMarksPeopleMarksKeepersSettings
Terms Of UseContact UsCopyright/IP PolicyPrivacy PolicyAbout UsFAQAdvertise on SI
© 2025 Knight Sac Media.  Data provided by Twelve Data, Alpha Vantage, and CityFALCON News