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grammatical corrections
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edit approved Sep 3, 2017 at 17:29
Edoardo
edit approved Sep 3, 2017 at 17:29
Edoardo
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As far as I know  , a thermoelectric generator has about 5-8% of efficiency. That means it uses 5% of the heat and convertconverts them to electricity. Rest 95% is dissipated through the other side. So I can increase the efficiency by stacking the modules and converting the dissipated heat to electricity again and again. But when I stack the modules, the voltage of the first module starts to decrease whether it's getting the same amount of heat it was getting when it was alone. So why does the voltage decrease after stacking the modules and where is the wasted energy going?

As far as I know  , a thermoelectric generator has about 5-8% of efficiency. That means it uses 5% of the heat and convert them to electricity. Rest 95% is dissipated through the other side. So I can increase the efficiency by stacking the modules and converting the dissipated heat to electricity again and again. But when I stack the modules, the voltage of first module starts to decrease whether it's getting same amount of heat it was getting when it was alone. So why does the voltage decrease after stacking the modules and where is the wasted energy going?

As far as I know, a thermoelectric generator has about 5-8% of efficiency. That means it uses 5% of the heat and converts them to electricity. Rest 95% is dissipated through the other side. So I can increase the efficiency by stacking the modules and converting the dissipated heat to electricity again and again. But when I stack the modules, the voltage of the first module starts to decrease whether it's getting the same amount of heat it was getting when it was alone. So why does the voltage decrease after stacking the modules and where is the wasted energy going?

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Abtahee Salekeen
Abtahee Salekeen
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Stacking thermoelectric generators for a better efficiency

As far as I know , a thermoelectric generator has about 5-8% of efficiency. That means it uses 5% of the heat and convert them to electricity. Rest 95% is dissipated through the other side. So I can increase the efficiency by stacking the modules and converting the dissipated heat to electricity again and again. But when I stack the modules, the voltage of first module starts to decrease whether it's getting same amount of heat it was getting when it was alone. So why does the voltage decrease after stacking the modules and where is the wasted energy going?