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General principles for selecting the thermoelectric cooler (Ⅱ)
Time : 2015-07-01 11:02Source :analogtechnologies Author : Analog Click :
Continued from the last article.
5. Determining TEC series
Selecting TEC series must meet the actual temperature difference requirements, that is, the nominal temperature difference shall be higher than the actual temperature difference, so that it can meet the requirements. However, the series is not too much because TEC price has great improvement with the increase of series.
6. Determining the specifications of TEC
After selecting the series of TEC, its specifications can be determined, especially working current. Because of different working current, the TEC with smallest working current is commonly selected. In this way, the cost of the assorted power supply is small.
7. Determining the quantity of TEC
The quantity is determined by total cooling power produced by TEC that has met the requirement of temperature. Make sure the total cooling capacity of TEC is larger than the total power of heat load at working temperature. The thermal inertia of TEC is very small, so when there is no load, it will take less than 1 minute. However, because of large load inertia, it will take far more than 1 minute even for a few hours before reaching the set temperature. The faster the working speed is, the large the quantity of TEC is.
If you want to more about TEC, please contact us.
Our web site is http://www.analogtechnologies.com/
5. Determining TEC series
Selecting TEC series must meet the actual temperature difference requirements, that is, the nominal temperature difference shall be higher than the actual temperature difference, so that it can meet the requirements. However, the series is not too much because TEC price has great improvement with the increase of series.
6. Determining the specifications of TEC
After selecting the series of TEC, its specifications can be determined, especially working current. Because of different working current, the TEC with smallest working current is commonly selected. In this way, the cost of the assorted power supply is small.
7. Determining the quantity of TEC
The quantity is determined by total cooling power produced by TEC that has met the requirement of temperature. Make sure the total cooling capacity of TEC is larger than the total power of heat load at working temperature. The thermal inertia of TEC is very small, so when there is no load, it will take less than 1 minute. However, because of large load inertia, it will take far more than 1 minute even for a few hours before reaching the set temperature. The faster the working speed is, the large the quantity of TEC is.
If you want to more about TEC, please contact us.
Our web site is http://www.analogtechnologies.com/
Next : Combined influence of TEC performance Last : The Reliability of Thermoelectric Coolers in Thermal Cycling Process (II)
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