ME 450 ME450 Homework 4 ANSWERS (Penn State University)
ME450 Homework 4 Solution (Penn State University)
1. A 5 kg watermelon was initially cooled to 50 C , but is exposed to 300 C with free convection at the picnic.
Derive the differential equation for watermelon temperature variation and solve it. Assume that convective heat transfer coefficient and surface area of watermelon are 15W /(m2K) and
How long will the watermelon take to get to 20.750 C
- Use linearization approach to perform design calculations.
- Verify your tank designs via ode45.
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