chatelot16 wrote:your youtube does not prove anything I can not guess what he's doing
on the other hand a piece of PVC pipe of 1 cm in diameter and 10 cm long full of hydrogen oxigen mixture with a stopper at each end, with a spark to alumer ca pete fort and stopper go far
these implosion history are false
The Saturn and Ariane rockets would never take off if it were true, pushed by the ejection of the very high-temperature reaction gases that are steam water by the reaction:
The explanation is simple physically, close to the conjurer's scam, using basic physics.
But, if the envelope of the mixture that burns or explodes resists the explosion by its high elasticity
for a volume not too big and that the produced water vapor cools and condenses
, then with 2 volumes of H2 and 1 of O2 is 3 volumes we get 2 volume of water vapor (if external pressure quite low) and a very small volume of liquid water
resulting in an apparent volume implosion from 3 to 1 greater than 100 ° C and 3 to 0,036 / 22,4 = 0,0016 to 20 ° C below 100 ° C, which gives rise to an implosion in a factor 1 / 1867, by formation of liquid water after reaction of the starting gases, but, after complete cooling
and with a sufficiently flexible and extensible envelope to withstand the very strong transient expansion of gases carried at high temperature during the explosion.
The water in large quantity around the bottle by its inertia blocks the dilation and ensures a rather fast cooling, to condense in water vapor in the bottle which then flattens.
So the implosion is misleading
, just the condensation of the formed water that replaces the original H2 and 02 gases with a volume 1867 times smaller
after complete cooling in a calorimeter sturdy enough to withstand the transient explosion.
Want to make an engine with this implosion, slow like cooling, comes back completely to waste the energy of the reaction,
because the energy of slow contraction thermally is much weaker than that of chemical reaction.
The Saturn and Ariane rockets are not implosion.
22,4 is the volume of one mole of gas at 20 ° C and 36cm3 is the volume of two moles of liquid water, for those who have difficulty understanding these figures, see Lavoisier to 1780.
To put an end to these muddy videos.