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P
= P
set
setref
Where:
Note: Avoid setting-up the TEG to run at higher V
may be affected. This method is suitable for ambient temperatures of up to
65.5ºC (150ºF). If in doubt contact Gentherm Global Power Technologies' (GPT)
Customer Service Department for guidance.
Example :
similarly,
7.1.2 Determining V
A good approximation to V
Figure 19. Knowing the ambient temperature, move up vertical to the line. Read the V
from the right side of the graph and rated power from the left side.
Gentherm Global Power Technologies
5220
+ [(T
- T) × 0.8]
ref
T
= Ambient temperature, at site (ºC)
T
= Reference ambient temperature, marked on Data Plate (ºC)
ref
P
= Reference power marked on TEG Data Plate (W)
setref
P
= Rated power at new ambient (W)
set
Ambient temperature at site is 35ºC. Set-up power of 220 W and V
14.3 V, 22ºC is marked on the TEG Data Plate.
V
= V
+ [(T
set
setref
= 14.9 + [(22 - {35}) × 0.026]
= 14.9 + [(22 - 35) × 0.026]
= 14.9 + [-13 × 0.026]
= 14.9 + [-0.3338]
= 14.9 - 0.338
= 14.56 V
P
= P
+ [(T
set
setref
= 220 + [(22 - {35}) × 0.8]
= 220 + [(22 - 35) × 0.8]
= 220 + [-13 × 0.8]
= 220 + [-10.4]
= 220 - 10.4
= 209.6 W
and Rated Power Graphically
set
and rated power can be obtained from the chart shown in
set
set
- T) × 0.026]
ref
- T) × 0.8]
ref
28142 Rev. 14
Equation 2.
or rated power values, as its life
of
set
set
7-2
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