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Heat Transfer for a Zirconium Billet

Heat Transfer for a Zirconium Billet. Devin Athey and Travis Rampton. Overview. Modeled our Capstone project- time to heat a Zirconium Billet to 140-145 degrees farenheit Used 1 st Term Approximation Compared to experimental measurements. Finding the Values.

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Heat Transfer for a Zirconium Billet

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  1. Heat Transfer for a Zirconium Billet Devin Athey and Travis Rampton

  2. Overview • Modeled our Capstone project- time to heat a Zirconium Billet to 140-145 degrees farenheit • Used 1st Term Approximation • Compared to experimental measurements

  3. Finding the Values • First we assumed an infinite cylinder, in order to neglect end effects. • Solved for the h value • h=405 • Found the Biot number to be too high for lumped capacitance (lumped capacitance method gave t=35.75 seconds) • Used 1st term approximation to solve for time • Found t to be 84 seconds, with Fo=.442787

  4. Results • Found time to heat to be 84 seconds • 50 seconds was the measured experimental time • Accuracy was 68%

  5. Conclusions • Compare these results with Concentric Cylinders values (another group project) • Determine end effects ( ) • Examine changes in start temperature of billet (i.e. changes in seasonal temperatures- winter to summer)

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