Re: [PSUBS-MAILIST] when the gas goes away...

["Emile" <2stroke@hetnet.nl>]

----- Original Message ----- 
From: "Dewey Mason" <drmason2001@yahoo.com>
To: "Psubs" <Personal_Submersibles@psubs.org>
Sent: Saturday, January 24, 2004 4:13 AM
Subject: [PSUBS-MAILIST] when the gas goes away...


> Hey Guys,
>  One of the most pressing questions I have is at what
> pressure does the chemical reaction no longer produce
> gas, or does the gas go into solution in the water at
> the point of production or rapidly there after and not
> provide lift. Can the pressure cause the reaction to
> INCREASE it's burn rate? Read EXPLODE. Chemical
> reactions increase with pressure, yes? Particularly in
> a solid where all the fuel is available to burn.

Referring again to"rocket propulsion elements":
-burn rate increase under pressure
-propellant ignite better under pressure
-(Composite) propellant burn more stable under pressure
-additives can slow the burn rate
A solid rocket engine has a typical internal pressure of 60 -100 bar due to
the troath and laval pipe so it is normal to work under pressure.

Grs, Emile
>
> Dewey Mason
> Abyss Marine Tech.
>
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