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3
TECHNICAL SPECIFICATIONS
This section gives the technical specifications for the Model 5220 Thermoelectric gen-
erator.
3.1
Overview
The Model 5220 Thermoelectric Generator (TEG) converts heat directly into electricity
with no moving parts. It is a reliable, low maintenance source of DC electrical power for
any application where regular utilities are unavailable or unreliable.
The model 5220 Thermoelectric Generator provides 220 Watts of electrical power from
the power unit at an ambient temperature of 20°C. This power is generated at a nominal
15 Volts, which can then be converted to other voltages using an optional voltage con-
verter. The converter is 80% efficient, which provides 175 Watts of net electrical power
with a 24 Volt converter.
If the generator is to be operated at load conditions that force the output voltage to vary
significantly from 15 Volts, then less than the rated power will be available to the load.
Figure 6 identifies the electrical parameters of the 5220 as a function of the load resis-
tance.
The 5220 generator uses Propane (C
ignition control module (SI) will automatically ignite whenever gas pressure is present.
The output voltage from the generator is adjustable from 12 to 18 Volts or from 24 to
30 Volts with the optional DC/DC converter. The 5220 includes a voltage sensing relay
(VSR) that can be used to trigger alarms or other processes when an abnormally low
voltage is detected.
3.2
Options
Mounting Stand: The 5220 can be conveniently mounted on any platform with four holes
spaced as shown in Figure 11. It is important to mount the TEG at a height sufficient to
prevent direct flooding or heavy snowfall from interfering with the flow of cooling air. A
mounting stand is available from Gentherm Global Power Technologies (GPT).
Cathodic Protection Interface (CP): The Cathode Protection Interface option provides a
termination point for cathode and anode cables up to 9 mm (00 AWG) in size, a meter
to monitor the voltage and current of the CP circuit and an adjustable resistor to control
the output power.
Current Split (CS): The Current Splitting variation of the CP Interface is also available.
The CS version allows two CP circuits to be controlled individually from one CP Interface
unit.
Gentherm Global Power Technologies
5220
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3-1
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