Thermoelectric Generators in Waste Heat Recovery: Converting Exhaust Energy into Usable Electricity
热电发电机在废热回收中的应用:将排气能量转化为可用电力
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Automotive thermoelectric generators (TEGs) convert exhaust heat—typically 400–700°C—into electricity via the Seebeck effect, adding 2–3% fuel efficiency without mechanical modifications to existing powertrains.
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Material selection balances ZT values (figure of merit) against thermal expansion mismatch: bismuth telluride alloys excel below 250°C, but automotive exhaust requires segmented modules combining skutterudites and half-Heuslers.
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