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Propulsion Jeff Rhoads and Terry Ballinger MST @ MSU 2006 What is Propulsion? What is Propulsion? The science of propelling (pushing) an object forward What is Propulsion? The science of propelling (pushing) an object forward Fuel Mechanical Motion The Process Propulsion Systems Internal Combustion Engines Steam Engines Electric Motors Nuclear Propulsion Jet Propulsion … Propulsion Systems Internal Combustion Engines Steam Engines Electric Motors Nuclear Propulsion Jet Propulsion … Most relevant to today’s activity. Internal Combustion Engines Internal Combustion Engines How it Works Steam Engines Steam Engines How it Works Nuclear Propulsion How it Works Nuclear Propulsion Jet Propulsion Involves the acceleration of a fluid through (from) an engine What does this do? Jet Propulsion Involves the acceleration of a fluid through (from) an engine Produces Thrust Jet Propulsion Combustion Oxygen Thrust Fuel Rocket Engine (Outer Space) Jet Propulsion Oxygen Combustion Thrust Oxygen Fuel Combustion Fuel Turbojet (High Altitudes) Cool Movies Cool Movies Jet Blast Cool Movies QuickTime™ and a YUV420 codec decompressor are needed to see this picture. Rocket Launch Today’s Activity Today’s Activity CO2 Propelled Boat Objective Create a CO2 propelled boat that travels the greatest distance in the minimum amount of time. Materials Other Materials Baking soda Vinegar Clear plastic tape Pennies Graduated cylinders Exact-o Knifes Today’s Activity CO2 Propelled Boat Objective Create a CO2 propelled boat that travels the greatest distance in the minimum amount of time. Fuel Mechanical Motion Propulsion Today’s Activity CO2 Propelled Boat Objective Create a CO2 propelled boat that travels the greatest distance in the minimum amount of time. Baking Soda and Vinegar Fuel Mechanical Motion Propulsion The “Combustion” Process Baking Stuff that Other Vinegar Fizz Soda Smells Stuff The “Combustion” Process Baking Stuff that Other Vinegar Fizz Soda Smells Stuff Sodium Acetic Bicarbonate Acid Carbon Dioxide Other Stuff The “Combustion” Process Baking Stuff that Other Vinegar Fizz Soda Smells Stuff Sodium Acetic Bicarbonate Acid Carbon Dioxide Other Stuff NaHCO3 CH 3COOH CO2 H 2O NaCH 3COO Design Considerations Best ratio of baking soda to vinegar (How can you systematically optimize it?) Method to seal the reaction chamber without mixing the baking soda and vinegar Size/placement of exhaust hole(s) for CO2 to escape Appropriate weight and its distribution
