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    E E Presentation Transcript

    • Hot Air VS Boiling Water (Steam) By Ethan Thomas
    • Problem Which heat source, hot air or boiling water(steam) will make a Stirling engine spin faster when measured in RPM?
    • Hypothesis Based on the research, hot air will make theStirling engine spin faster than the steam will.
    • Materials• Stirling Engine (low temperature)• Thermometer• Tachometer• Hot Air Source (hot air popcorn popper)• Steam Source (mug of boiling water)• Chart to Record Data• Timer
    • Experiment Photos To the right is the Stirling engine used in the experiment. It is a Type B Stirling engine. Note: That little sliver of tape helps the tachometer take measurements.
    • The thermometer The tachometer
    • The Stirling engine The Stirling engine on the hot air on the mug of boiling water
    • ResultsThe Hot Air made the Stirling engine spin fasterwith a top speed of 443 RPM, while the steam only maxed out at 307 RPM.
    • Dont know enough?http://www.absoluteastronomy.com/topics/Stirling_engine http://www.howstuffworks.com/stirling-engine.htm http://library.thinkquest.org/C006011/english/sites/ stirling.php3?v=2