Product Catalog
- TEC/Peltier Controllers
- Laser Drivers
- TEC Modules
- Thermistors
- TEG
- Heat Sink
- Temperature Plate Assembly
- Thermal Conductive Material
- SMT/SMD Resistor Kits
- SMT/SMD Capacitor Kits
- SMT/SMD Inductor Kits
- Empty Enclosure
- Adjustable Decade Boxes
- LED Related Products
- Noise Measurement Amplifier
- High Voltage Power Supply
- Household Earthquake Alarm
- + More Products
- Videos
Company's Patents
|
Contact Us
Analog Technologies, Inc.
2352 Walsh Ave.
Santa Clara, CA 95051
U. S. A
Tel.: 408-748-9100
Fax: 408-748-9111
New Website: www.analogti.com
Online Store: www.smtzone.com
Cooling characteristics of TECs
Time : 2015-04-17 16:13Source :analogtechnologies Author : Analog Click :
TEC is the abbreviation of thermoelectric cooler, which is a kind of heat pumps. It has many advantages of no sliding parts, no noise, long service lifetime, good reliability and flexible control. When supplying a power supply, TEC can be rapidly cooling, and when the current reverses, it can also be rapidly heating. Based on the above advantages, TECs have been widely used for mechanical fields and electronic fields. Here are some introductions to cooling characteristics of TECs.
TEC consists of thermopiles, cold end heat exchanger and hot end heat exchanger. The thermopile is made up of many couples and for the current, each couple is in series; for heat current, each couple is in parallel. Therefore, when analyzing thermopile performance, it only needs to analyze couple performance. The refrigerating capacity, voltage value, input power and refrigeration coefficient of a pair of coupleare respectively:
TEC consists of thermopiles, cold end heat exchanger and hot end heat exchanger. The thermopile is made up of many couples and for the current, each couple is in series; for heat current, each couple is in parallel. Therefore, when analyzing thermopile performance, it only needs to analyze couple performance. The refrigerating capacity, voltage value, input power and refrigeration coefficient of a pair of coupleare respectively:
Where，
Q01-Cooling capacity (W);
I-Working current (A);
K1-Thermal conductivity (w/k);
△T-Hot and cold end temperature difference
R1-Resistance value (Ω);
αpn -Thermoelectric power(V/K);
Tc- Cold end temperature (K);
The refrigeration performance of the couple has relationship with material properties, element size and working voltage. The material properties are inherent characteristics, and when the element size is in accordance with the following relations, it has the optimal performance:
Where,
λp, λn-Thermal conductivity of materials[w／(m．K)]；
ρp, ρn-Resistivity(Ω/K);
Where,
λp, λn-Thermal conductivity of materials[w／(m．K)]；
ρp, ρn-Resistivity(Ω/K);
If you want to know more, please feel free to contact us.
Our web site is http://www.analogti.com/
Next : NTC thermistor (III) Last : Technical terms of NTC thermistor
Hot news
- How to use the NTC
- Application Status of Semiconductor Lasers
- Functions of Capacitor Kits
- Reliability of thermoelectric cooler
- The Principle of NTC Thermistor
- The Features of Laser Drivers
- Heat Sink in Thermoelectric Cooling System
- The Definition of Low Niose Amplifier
- Resistor/capacitor/inductor kits
- Analysis of LED Market Prospects
