How To Make a Low Temperature Differential (LTD) Stirling Engine
LTD stirling engines are an interesting idea. They harvest the temperature difference of the environment versus a cold object, and using this they power some pumps. I don’t know yet the efficiency of this stirling engine, but it would be a nice idea for the hot areas of the world to put in some ice in your car and then go all the way until it melts. I don’t know how much capacity the water has as a reservoir of thermal energy, but I bet that if someone would invent a mechanism that works by this principle in a car, everybody would rush to the polar caps to sell them to the car owners.
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Apr 12th, 2008 at 3:27 am
The efficiency of the sterling engine is quite low, in the 20-30% range, but this is partially offset by being able to use a highly efficient external heat source should one be available. There is at least one sterling powered sub - with a nuclear engine.
Jul 28th, 2008 at 1:04 am
When making upper and lower disks what workholding tip do you use ? Do you simply apply pressure with the tail stock or the disk is also glued on the face plate you made before ? I tried using super glue and the like with poor results… No way to turn down the disk roughly sawn by holding with adhesive.
Thanks