Henrik Schultz wrote:
> Hi,
>
> We are working on an engine design with peroxide as the cooling agent.
>
> Since in a kero/HTTP engine you have about a 7:1 O/F ratio, there's
> plenty more HTTP to cool with, i.e. the flow rate is about 7 times
> larger. The only issues as I see it, is first of all to avoid
> overheating the HTTP in the cooling channels, as it would start to
> decompose in the channels, potentially leading to engine blowup.
> Secondly, you can't use copper or any other material which would cause
> the HTTP to decompose. On the positive side, you don't have problems
> with the kero leaving residue inside the cooling channels, i.e. no need
> for very refined kerosene (eg. RP-1).
The 7:1 ratio is by mass I believe. The volume ratio is about 4.1:1.
> I believe that the Black Arrow design used HTP for coolant. The chambers
> were made of steel and aluminum.
>
Yes, they did use HTP cooling.
Michael
----------------------------------------------------------------------
Michael Wallis KF6SPF (408) 396-9037 [EMAIL PROTECTED]
Calvin Coolidge:
"There is no dignity quite so impressive, and no independence quite so
important, as living within your means."
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