Power generating modules |
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QUICK-COOL's thermoelectric generating modules designation within this product group is encoded in the following letter string QCG-AAA-BB-CC where: |
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QCG - Thermoelectric Generating Module
AAA - the number of thermocouples
BB - cross-section of the pellet, mm
CC - height of the pellet, mm
For instance, module TMG-127-1.4-1.6 is the type that consists of 127 thermocouples with pellet cross-section of 1.4 by 1.4 mm and pellet height of 1.6 mm. |
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| Modul Type |
BASIC CHARACTERISTICS |
DIMENSIONS, mm |
| Voc/V |
Rin/Ohm |
Rload/
Ohm |
Wload
/W |
Vload/
V |
/\m,
Watt/oC |
hot side |
cold site |
hight |
| QCG-127-1.0-1.3 |
6.4 |
5.0 |
5.0 |
2.1 |
3.2 |
0.53 |
30 x 30 |
30 x 30 |
3.6 |
| QCG-450-0.8-1.0 |
21.5 |
21.5 |
28.0 |
5.0 |
12.0 |
1.45 |
54.4 x 54.4 |
54.4 x 57.0 |
3.4 |
| QCG-127-2.0-1.3 |
6.4 |
1.3 |
1.3 |
7.9 |
3.2 |
2.02 |
50 x 50 |
50 x 50 |
3.6 |
Module operating properties are given at hot side temperature 175°C and cold side temperature 50°C.
Under these conditions maximum efficiency of electric power generation is around 3% for all presented modules.
Efficiency is determined as Wload/Q, where Wload is an output power, Q is a heat flow through the module.
• Definitionen:
V oc
–open circuit voltage, (Volt)
R in –
module internal resistance at 110°C (Ohm)
R load
– matched load resistance (Ohm)
V load –output voltage, (Volt), corresponded to matched load
A m –
module thermal conductance at 110°C (Watt/°C)
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Thermoelectric modules for power generating
The power generating modules are aimed to convert heat source directly into electricity. Such modules can be used for making miniature and reliable electric power generators applicable in remote and secluded places.
The power generating modules produced by QUICK-COOL (QCG-series) are based on Bi-Sb-Te-Se thermoelectric materials and capable to work continuously at temperatures around +180° C. Maximum short-time processing temperature is +210° C. Thermoelectric module can generate DC electric power as long as temperature difference between its hot and cold sides takes place. Also you can always connect modules in series or use DC-DC converter to get different output voltage.
Our manufacturing technologies provide module cycling stability in wide temperature and time intervals. For example, fig.1 shows relative change of internal resistance Rin of QCG-127-1.0-1.3 module vs. number (N) of cycles. The module hot side temperature Th changes between 50o C and 175o C. Periodicity of cycles is less than 1 minute; during the test the module cold side has the temperature Tc =50o C. As the illustration of operation stability of QUICK-COOL's QCG modules, fig.2 shows time dependence of output voltage of QCG-127-1.0-1.3 module under the following test conditions: Th =175o C, Tc =50o C, load resistance =7 Ohm. |
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Fig. 1. Example of cycling stability of QUICK-COOL's QCG modules |
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Fig. 2. Examples of operation stability of QUICK-COOL's QCG modules |
