Peltier Modules In Cooling Systems For
Electronic Components
Author(s)
K. Domke & P. Skrzypczak
Abstract
Currently used electronic components (LED, processors, CCD matrices) are
distinct for their increasingly dense packing of active elements and,
consequently, higher heat loss power per a single element. The arising thermal
barrier restricts the functionality and further development of components in their
present-day form. Cooling systems (natural or forced types, including water
cooling systems) sometimes fail to come up to the required standard. The paper
discusses a concept whereby the operation of standard cooling systems is
supported by incorporation of Peltier elements. A heat flow analysis is presented
for systems containing: an electronic element – Peltier element – radiator,
complete with a study of cooling efficiency and elements facilitating the process
of design of such combined systems. Also, experimental data from tests
examining the process of cooling in sample systems will be provided.
Keywords: Peltier module, LED cooling system, heat transfer.
1 Introduction
Early cooling systems for electronic elements incorporated a radiator as the basic
element ensuring proper heat dissipation from the system. The radiator’s
parameters (material type, size of heat radiating surfaces and their mutual spatial
arrangement) determined thermal resistance of the system and, therefore, the
efficiency of cooling. An increased number of elements per area unit, together
with a higher clock rate, increased thermal power which had to be directed away
from a single system. Forced air circulation (forced convection) makes it
possible to considerably reduce thermal resistance of the cooling system,
however does not allow for reducing Rthrad-amb below zero. As a result, the
Keywords
Peltier module, LED cooling system, heat transfer
Related Book
Other papers in this volume
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