XPost: sci.space.policy, sci.physics   
   From: invalid@invalid.com   
      
   On 10/12/2016 7:13 PM, Fred J. McCall wrote:   
   > Serigo  wrote:   
   >   
   >> On 10/12/2016 4:14 PM, Fred J. McCall wrote:   
   >>> Serigo  wrote:   
   >>>   
   >>>>   
   >>>> there may not be any coal or oil on Mars if no huge plants growing in   
   >>>> its past like on earth. "=> no fuel on Mars"   
   >>>>   
   >>>   
   >>> True, but your typical space colony won't be burning coal.  Methane is   
   >>> easily produced.   
   >>>   
   >>   
   >> 1 how much methane does it take to generate 1 watt hour ?   
   >>   
   >   
   > A little over 3 cubic feet.  Why does it matter?  You can produce as   
   > much as you need.   
      
   wrong, you are unfamiliar with sizing a problem, determining the bounds   
   or limits.   
      
   If you’re looking for a rough estimate rather than an entirely accurate   
   one; a hundred cubic foot of gas is between 2 and 3 kWh, depending upon   
   the conversion factors which are used.   
      
      
   >   
   >>   
   >> 2 how many watt hours does your computer take ? (assume you use it for 1   
   >> hour)   
   >>   
   >   
   > Who the fuck knows or cares?   
      
   look at your power supply, or turn over your computer, it is on the   
   label, know how to read ?   
      
   >   
   >>   
   >> 3 how much poop does it take to generate the methane needed in 1 above ?   
   >>   
   >   
   > None, since that's not how you produce it, you ignorant clot.   
   >   
      
   How much biogas can I get out of my waste?   
      
   The amount of biogas you can extract from your organic waste depends on   
   the waste itself and the design of the digester system.   
      
   Some digesters can yield 20 m3 of biogas per tonne of waste   
      
   SO 1 tonn poop = 20 m^3 biogas which is 60% methane = 12 m^3 methane   
   =424 cubic feets   
      
   your computer takes 120V*3A or 360 watts (including display)   
      
   424 cubic feet => 8,000 to 12,000 watt hours   
      
   take the average of 10,000, 10,000/360 = 27   
      
   therefore 1 ton of poop will run your computer for 27 hours   
      
   better go get your exlax   
      
   so now what do you do with the used poop ?   
      
   you need the water out of it....   
      
      
      
      
   >   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)