Desenvolvimento de bancada experimental para avaliação em regime transiente de gerador termoelétrico de exaustão automotiva
DOI:
https://doi.org/10.34117/bjdv10n1-128Keywords:
gerador termoelétrico, recuperação de energia, eficiência, efeito seebeck, bancada experimentalAbstract
O gerador termoelétrico de exaustão automotiva (TEGea) para recuperação da energia dos gases de exaustão é um dispositivo ambientalmente sustentável que tem sido investigado intensamente nas últimas décadas. Nesta pesquisa foi desenvolvido uma bancada experimental instrumentada para avaliação da performance de gerador termoelétrico de exaustão automotiva em regime transiente. O aparato experimental compreende uma seção de propulsão de ar, uma seção de aquecimento do ar e uma seção de conversão termoelétrica com trocador de calor, módulos termoelétricos e dissipador de calor refrigerado por líquido. Controles eletrônicos de vazão e aquecimento do ar foram desenvolvidos na plataforma Arduino para reproduzir a variação de energia térmica dos gases de exaustão de um motor de combustão interna. A vazão e temperatura do fluido de arrefecimento dos módulos termoelétricos são controlados por um chiller. Sensores de temperatura, tensão e corrente elétrica foram instalados estrategicamente para monitoramento e aquisição de dados. A automação da bancada experimental permite estabelecer o regime transiente e a reprodução de testes do gerador termoelétrico de exaustão automotiva (TEGea) de modo igual, sem a interferência do operador, aumentando o nível de confiabilidade dos resultados obtidos.
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