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1 Journal of Ecological Engineering

1 2024

1 Viorel I.

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Thermal, Energy and Exergy Analysis of Thermoelectric Generator System for Waste Heat Recovery Applications

100%

Viorel I.

Journal of Ecological Engineering

2024

tom Vol. 25, nr 7

201--211

The efficient recovery of the waste heat from the industrial sector can represent an essential step in global energy saving, with the proper usage of other on-grid power resources available for specific high-energy consumers. A simple, low–cost energy conversion system was tested here to recover a part of the waste heat dissipated by a gasoline engine’s exhaust pipe under the car’s stationary testing mode at temperatures around 80–100°C. The main components of this system were a copper–made thermal collector, a commercial thermoelectric energy generator (TEG) module TEC1–12706 and a pin-fin heat sink under natural air convection cooling. Under the open-circuit test, heat transfer rates between 4.54 W and 5.56 W were evacuated by the heat sink. A DC electronic load RL was connected at the TEG outputs, and voltage values between 0.566 V and 1.242 V were recorded for output power values between 0.03 W and 0.16 W when R,sub>L was modified from 1 Ω to 10 Ω.