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+--- Thread: Dilute solution H2O2 injection (/showthread.php?tid=284)
Dilute solution H2O2 injection - ForcedInduction - 03-17-2009
Lets discuss hydrogen peroxide injection (This is NOT related to the hydrogen "generator"/HHO/H2/Brown's gas/etc scams). Commonly available for cheap in a 3-6% solution. Injection would be the same as water/alcohol injection. Perhaps a 3% solution can be used as the water base of the mixture?
Known negatives:
Corrosive to iron
Unstable
Breaks down in light (Why its sold in brown bottles)
Known positives:
Decomposes exothermically into water and oxygen gas
Cheap
Easily procured
Being corrosive to iron is mainly a problem in high (50%+) concentrations. I don't think 3% injected into a running engine under load would leave it in contact long enough to do damage and I'm fairly sure is looses its corrosiveness when it decomposes.
The breakdown problem can be solved by keeping the tank in the trunk and/or painting the tank.
I'm not sure how it interacts with methanol.
I can't find any examples of it being used in this manner.
RE: Dilute solution H2O2 injection - winmutt - 03-18-2009
It stinks
RE: Dilute solution H2O2 injection - ConnClark - 03-18-2009
(03-17-2009, 11:57 PM)ForcedInduction Being corrosive to iron is mainly a problem in high (50%+) concentrations. I don't think 3% injected into a running engine under load would leave it in contact long enough to do damage and I'm fairly sure is looses its corrosiveness when it decomposes.As I understand it the corrosiveness comes from the the slow break down into oxygenated water. Water + Iron + O2 = rust
Quote:The breakdown problem can be solved by keeping the tank in the trunk and/or painting the tank.It breaks down when exposed to heat as well. There are a number of metals that cause it to decompose on contact. Copper, Silver, etc... Aluminum is a good storage material when it is passivated ( treated with nitric acid to remove traces of copper impurities from the contact surface). It tends to make most plastics brittle as well.
Quote:I'm not sure how it interacts with methanol.Generally mixing oxidizers and fuel for storage is not a good idea. Since your talking a weak H2O2 solution the explosive potential is not a problem.
Quote:I can't find any examples of it being used in this manner.http://www.sae.org/technical/papers/2000-01-1919
RE: Dilute solution H2O2 injection - ForcedInduction - 03-19-2009
(03-18-2009, 04:46 PM)ConnClark http://www.sae.org/technical/papers/2000-01-1919
Very nice. I'll read through it later.