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mission:resources:picojet [2014/07/09 12:02] – [Technical Data] chronomission:resources:picojet [2014/07/09 12:15] – [Design] chrono
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 === Calculations === === Calculations ===
 +
 +First, we need to figure out how much energy we have to put into the fluid in order to get from room temperature to 45°C:
  
 <x 14> <x 14>
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 </x> </x>
  
 +Now we can determine how much heating power we need to deliver that amount of energy in a reasonable time-frame:
  
 <x 14> <x 14>
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 ==== Heat Reflector ==== ==== Heat Reflector ====
 +
 +Since the heater radiates the energy in all directions we want to reflect the heat going to the bottom upwards again, so that we don't waste energy there. Tests have shown that rescue blankets for cars (the gold/silver foil) can help with that, so a piece of this foil was inserted between the bottom glass and the silicone footer (silver side up, as this side reflects heat).
  
 ==== Prove-of-Concept Test ==== ==== Prove-of-Concept Test ====
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 === Impeller === === Impeller ===
 +
 +This was the first approach, by simply cutting the tubes and some ABS material in a half-circle shape and then gluing them onto the tube. The next test should be, if we couldn't just print something with [[mission:resources:picoprint|our 3D printer]] to make it even more comfortable.
  
 {{:mission:resources:picojet-tube-impeller-single-open.jpg?640|}} {{:mission:resources:picojet-tube-impeller-single-open.jpg?640|}}