1. Heating of Magnesium Plates
By: Jonathan Scott

2. Introduction

3. The Problem Constant temperature profile needed Press pulls away too
much heat

4. Desired failure mode
Undesired failure mode

5. Assumption No contact resistance between press and magnesium plate
Lumped Capacitance
Room temperature = 298 K
Open convection on all exposed surfaces

6. The Solution
Tmax = 150 C or roughly 425 K Tf = 362 K Ra = 4.35x10^5 Nu top = Nu bottom = 6.93 h = W/mK Heat loss thru Natural Convection = 39.9 W Heat loss thru Conduction = 63.3 W

7. Conclusion Total Heat loss = 103.2 W
103.2 W must be applied at the press to increase Ts at that point