| Author | Message | ||
     Arthur Yip Unregistered guest |
to anyone who can help me: i found simon's version of a hydrogen fuel cell and decided to take it one step further by extracting the hydrogen and oxygen into rubber tubing and then recombining them with the proper fuel cell electrolyte, catalysts and the rest. however, my teacher does not like the idea of me having H2 in a closed system. i would like some clarifications of the dangers of H2 and what happens if it a) contacts O2; b) contacts O- ions; c) contacts air inside the closed system; or d) contacts air outside the closed system. thank you very much. | ||
| Andrew Unregistered guest |
Now I am not an expert or anything but from my experience: a)Nothing dangerous unless there is a source of ignition, b)I have no idea, c)same as a), d)same as a) except the ignition would have to be quick as the hydrogen would dissipate. | ||
| Arthur Yip Unregistered guest |
thanks andrew i would also like to ask if a hotplate is a source of ignition? and because i'm using a multimeter connected to the catalysts, could this also possibly create a spark? | ||
| Simon Quellen Field (sfield) New member Username: sfield Post Number: 123 Registered: 12-2004 |
The amounts of hydrogen we are talking about here are pretty small, which means the amount of damage that can be done is pretty small also. Think of it like the gas in a can of hair spray. That gas is quite flammable, can explode in the right proportions in air, but quickly dissipates into a non-explosive minor air pollutant. There is a lot more danger from the hair spray than the hydrogen. | ||
| Arthur Yip Unregistered guest |
but if your hydrogen bomb squirt gun can expel water, what will happen if i have a closed system with all the hydrogen and oxygen sealed within my fuel cell? will the plexiglas or glass break open? and also, could a hotplate heating the glass create a spark? and what are the risks of a multimeter creating a spark? | ||
| Simon Quellen Field (sfield) New member Username: sfield Post Number: 135 Registered: 12-2004 |
Consider the safety of other devices that use flammable gas and a spark deliberately. A cigarette lighter, a gas stove, a gas water heater, or our own Film Can Cannon. A child can throw the film can farther than the cannon can shoot it. These things are far safer than skateboards and bicycles. If you design your closed system properly, then the hydrogen will be stored seperately from the oxygen or air. In that case, sparks will be no danger at all. Hotplates don't create sparks. Scuffing your feet on the carpet will creates sparks, as will combing your hair. The multimeter uses low voltage, and will not create any sparks. | ||
| Arthur Yip Unregistered guest |
thank you very much for your help =) | ||
| Kazuma (Unregistered Guest) Unregistered guest Posted From: 216.254.69.205 |
I am using the Hydrogen Fuel Cell to create Hydrogen and Oxygen Gases. I need to ignite one or both of these gases to propel a car forward. A) Should I mix Hydrogen and Oxygen to create the explosion B) Should I just use Hydrogen C) The Piezoelectric Ignitors I ordered from you don't create a spark, is there something wrong. (I ordered a 10 pack and none of them produce a spark) | ||
| Patrick (Firewire) Advanced Member Username: Firewire Post Number: 85 Registered: 12-2007 |
I think hydrogen will burn more aggressive than pure oxygen... If you mix oxygen and hydrogen you don't create will come up with water instead. The wire should be near a ground such as your body or the round metal thingy on the igniter itself... | ||
| Simon Quellen Field (Sfield) Senior Member Username: Sfield Post Number: 1897 Registered: 12-2004 |
The brass base of the igniter is one terminal. The wire is another. Bring the wire 1/4 inch from the brass base and click, and you will get a spark. You can wrap a wire around the brass base so you have two wires, and the spark will go from one to the other. Hydrogen alone will not burn -- it needs oxygen. Oxygen dissolves better in water than hydrogen, so there won't be enough oxygen if you just mix the two gases (some oxygen will still be dissolved in the water). Add a little air and you should be fine. | ||
| marx (Vdg) Member Username: Vdg Post Number: 13 Registered: 4-2008 |
Wouldnt the oxyhydrogen flame burn the car if Kazuma uses both oxygen and hydrogen? |
