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Old November 26th 16, 04:05 PM posted to sci.space.policy
Fred J. McCall[_3_]
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Default Using waste for propulsion ?

JF Mezei wrote:

On 2016-11-26 00:55, Fred J. McCall wrote:

You can't 'use it almost directly', there's not very much of it, and
whatever mass you don't recycle you have to replace with supplies to
make up for the lost recycled materials. This makes you burn MORE
fuel, not less.


So you're suggesting methane and human waste be thrown out the door in
flight then ?


Mr Mezei, stop listening to the voices in your head and just assume
I'm saying what I actually said.


Hint: on ISS it is put in plastic bags and then sent to the great big
Progress Incinerator. Methane isn't recycled.


Hint: A Mars vehicle isn't ISS.

Hint: Solid human waste doesn't just magically turn into methane.

Hint: You're the one apparently suggesting throwing big flaming bags
of **** out the back of the vehicle. Look up 'rocket'.


On a trip to Mars, thre isn't a regular Progress that comes it with
fresh pizza and goes back with garbage that is burned.


No ****, Sherlock.


So human waste handling is an issue Musk will have to deal with on its
big 100pax ship because there is going to be a hell of a lot more of it.
I was merely proposing a means to use it as propulsion instead of
speding much energy to try to convert it or just dumping it overboard


Except you weren't. You were automagically turning it all into
methane by waving your magic willie and then acting as if that's
useful.


--
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