Characterization of a Thermoelectric Generator (TEG) System for Waste Heat Recovery

Oswaldo Hideo Ando Junior, Nelson H. Calderon and Samara Silva De Souza
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Oswaldo Hideo Ando Junior: Department of Renewable Energies, UNILA, Federal University of Latin American Integration, Av. Sílvio Américo Sasdelli, 1842 Foz do Iguaçu-PR, Brazil
Nelson H. Calderon: Department of Renewable Energies, UNILA, Federal University of Latin American Integration, Av. Sílvio Américo Sasdelli, 1842 Foz do Iguaçu-PR, Brazil
Samara Silva De Souza: Department of Renewable Energies, UNILA, Federal University of Latin American Integration, Av. Sílvio Américo Sasdelli, 1842 Foz do Iguaçu-PR, Brazil

Energies, 2018, vol. 11, issue 6, 1-13

Abstract: This paper presents the development and characterization of a thermoelectric generator (TEG) system for waste heat recovery to low temperature in industrial processes. The relevance of this mode of electric energy harvest is that it is clean energy and it depends only on the capture of losses. These residual energies from industrial processes are, in principle, released into the environment without being exploited. With the proposed device, the waste energy will not be released into the environment and will be used for electrical generation, which is useful for heat production. The characterization of TEGs that are used a data-acquisition system have measured data for the voltage, current, and temperature, in real-time, for temperatures down to 200 °C without signal degradation. As a result, the measured data has revealed an open circuit voltage of V OC = 0.4306 × ΔT, internal resistance of R 0 = 9.41 ?, with tolerance ΔR int = ±0.77 ?, where R int = 9.41 ± 0.77 ?. The measurements were made on the condition that the maximum output was obtained at a temperature gradient of ΔT = 80 °C, resulting in a maximum power gain of P out ≈ 29 W.

Keywords: thermoelectricity; energy harvest; green energy; seebeck effect; cogeneration (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (12)

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