1N22.u1 - Pulse Jet
Demonstrate F=ma, loud fun fire flame danger.
InstructionsThe base is clamped down on each side of the base using squeezee clamps. The clamps should be clamped close to the end of the bottom base. The top plate should be able to be moved back and forth in response to an applied force. Make sure the spring scale is mounted in the post of the back of the top plate and fed through the slot of the post attached to the bottom plate. This should allow for a force measurement to be made when the cart is pushed back by the exhaust of the jet. Compressed air is connected to the air inlet valve on the back of the jet. Colman camp stove fuel is used to power the jet. There is a glass gas tank with feed hose that is filled to the line with the fuel(~25mL). Put on earmuffs. Pre-heat the combustion chamber of the jet using the propane torch prior to starting the air flow until the combustion chamber is red hot. Start ignition plug. Start carburator air injection. Allow the engine to run out of fuel. Once fuel is exhausted, turn off ignition and allow the air to continue to flow to cool down the jet.
This demonstration is performed by the Demo Lab staff upon request.
Must pre-heat combustion chamber prior to firingFuel used: Colman camping stove fuel (~25mL)Carbarator position: Want air injector to point at spark plug for best ignition. In this case, pointing upward.Spark Plug: NGK 5812 CM-6 (10* x 8.6 (,339"))