Heat Cycles – 4F30.00

Hero’s Engine with LN2 – 4F30.01


  • Pour LN2 into the plastic drinking bottle.
  • Tighten bottle to the cap and PVC pipe assembly.
  • Hold the other end of the PVC firmly and lower the bottom of the bottle into a Nalgene container 1/3 full of water.
  • As soon as the bottom of the bottle touches the water, LN2 will begin to boil and pressurize.
  • The nitrogen gas escaping will cause the bottle to turn at a high rate of speed.

Location: Jacobs B122 – Shelf 285

Stirling Engine – 4F30.15

Stirling Engine_4F30.10

  • A sterling engine is placed over a hot or a cold water bath.
  • The engine rotation will reverse when the direction of the heat flow is reversed.

Location: Jacobs B122 – Shelf 273

Thermoelectric Converter (Pasco) – 4F30.80

Thermoelect_ Convt_4F3080Thermoelectric Converter 4F30.80

  • Place one leg of the Thermoelectric Converter into cold water, the other into hot.
  • The fan turns as the converter draws energy from the hot source (typically a 50 degrees C temperature differential is required).

Location: Jacobs B122 – Shelf 265