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Transient Response

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  1. Transient Response Paul Black, Mark Eilertsen, Evan Jones

  2. How long will it take for ice cold water to reach room temperature?

  3. Measured

  4. Prediction Keq

  5. Lumped CapacitanceApproximate Solution

  6. Transient Response s Approximate Solution Fo > .2 Lumped Capacitance Bi < .1

  7. No Difference

  8. Conclusion • Cooler kept food cool for 146 hrs • Lumped capacitance • Initial response (Bi<.1) • Approximate solution • Response after some time (Fo>.2) • One term is good enough

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