[AR] Re: Hypothetical Lox cooling

  • From: Henry Spencer <hspencer@xxxxxxxxxxxxx>
  • To: Arocket List <arocket@xxxxxxxxxxxxx>
  • Date: Mon, 19 Oct 2020 23:27:41 -0400 (EDT)

On Mon, 19 Oct 2020, ken mason wrote:

Why would you want to use LOx anyway,is your fuel even less satisfactory?

To my mind, the main reason to think about LOX cooling is that it frees up your choice of fuel. LOX is cheap and dense and you invariably need lots of it, so it would be nice if you could cool with it, leaving freedom to optimize the fuel for performance, density, cost, or whatever without having to worry about whether it's also a good coolant. If it were easy to cool with LOX, nobody would bother cooling with fuel; unfortunately it's not, so whether it's worth the trouble is the key question.

Henry

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