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Customized Thoermoelectric Air Conditioner Peltier Air Cooler 100W
48VDC
Design Calculation Tutorial
Let’s assume a solid-state electronic component requires cooling to
improve performance and reliability. The component resides in an
environment with a maximum ambient air temperature of 35°C and
dissipates 15 Watts. Cooling the component to 18°C will improve
performance and reliability.
Our thermoelectric cooling system will have the following physical
characteristics: the electronic component will be in direct contact
with cold side of the TE cooler, and the heat sink and fan will be
in direct contact with hot side of the TE cooler.
The natural flow of heat is always from hot to cold. When DC power
is applied to the thermoelectric module, the cold side becomes
colder than the electronic component, so heat flows naturally from
the component to the TE module.
The charge carriers in the semiconductor material relocate the heat
from the electronic component to the heat sink. This causes the
temperature of the heat sink to rise. When the temperature of the
heat sink exceeds that of the surrounding air, heat will flow
naturally from the sink to the atmosphere.
