Symbol | Quantity | SI Units |
k | Thermal conductivity | W/mK |
X | Size of the heat source in the x-direction | m |
Y | Size of the heat source in the y-direction | m |
L | Thickness of the heat spreader | m |
α | Heat spreading angle | degrees (or radians) |
Q | Heat source | W |
T | Temperature at the heat source | ˚C or Kelvin |
TA | Ambient temperature = isothermal heat sink temperature = 0˚C for all cases considered | ˚C |
a | Area of heat source | m2 |