
In most cases, the cold surface temperature is usually given as
part of the problem – that is to say that some object(s) is to be
cooled to some temperature. Generally, if the object to be cooled
is in direct intimate contact with the cold surface of the
thermoelectric, the desired temperature of the object can be
considered the temperature of the cold surface of the TEM (Tc).
There are situations where the object to be cooled is not in
intimate contact with the cold surface of the TEM, such as volume
cooling where a heat exchanger is required on the cold surface of
the TEM. When this type of system is employed, the cold surface of
the TEM (Tc) may need to be several degrees colder than the
ultimate desired object temperature. The Hot Surface Temperature is
defined by two major parameters:
1) The temperature of the ambient environment to which the heat is
being rejected.
2) The efficiency of the heat exchanger that is between the hot
surface of the TEM and the ambient environment.
These two temperatures (Tc & Th) and the difference between
them (∆T) are very important parameters and therefore must be
accurately determined if the design is to operate as desired.
Figure 3 represents a typical temperature profile across a
thermoelectric system.
The third and often most difficult parameter to accurately quantify
is the amount of heat to be removed or absorbed by the cold surface
of the TEM, (Qc). All thermal loads to the TEM must be considered.
These thermal loads include, but are not limited to, the active
heat load (I2R) from the electronic device to be cooled and passive
heat load where heat loss can occur through any object in contact
with ambient environment (i.e. electrical leads, insulation, air or
gas surrounding objects, mechanical fasteners, etc.). In some cases
radiant heat effects must also be considered.
Adcol Electronics (Guangzhou) Co., Ltd.
Adcol Electronic Established in 2008, is a rapid growing company who integrate the production and marketing of thermoelectric products. After nine years effort and development, now we have become one of the leading thermoelectric manufacturers and supplier in China.
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Our personnel have years of experience in thermoelectric product, design, testing and manufacturing.
We provide customized thermoelectric solutions for world customers
and many industries.
Corporate culture: we follow our heart to look for success of
ourselves, our company and our world.
Goal: To be the best company of Thermoelectric Product, the first
option of our global customers.
Values: Provide good quality, value added, fast service to our
customers
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Quality Policy : Lead TE Technology,Good Quality, Customer first,
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