Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/66257
Título: | Compact automotive thermoelectric generator with embedded heat pipes for thermal control |
Autor(es): | Pacheco, N. Brito, F.P. Vieira, R. Martins, Jorge Barbosa, H. Gonçalves, L. M. |
Palavras-chave: | Thermoelectric generator Variable thermal load Waste heat recovery Thermal control Heat pipes Variable conductance heat pipes |
Data: | 2020 |
Editora: | Pergamon-Elsevier Science Ltd |
Revista: | Energy |
Citação: | N. Pacheco, F.P. Brito, R. Vieira, J. Martins, L.M. Goncalves, Compact Automotive Thermoelectric Generator with Embedded Heat Pipes for Thermal Control, Energy, 197 (2020) 117154; https://doi.org/10.1016/j.energy.2020.117154 |
Resumo(s): | Currently, the automotive industry faces challenges to implement solutions that provide reductions in energy consumption, pollutants and greenhouse-gas (GHG) emissions. Exhaust heat recovery employing Thermoelectric generators (TEGs) enables the direct conversion of heat into electric energy without moving parts and little to no maintenance. On-board electrical production is especially useful given the growing electrification trend of road vehicles. The present work assesses the performance of a novel temperature-controlled thermoelectric generator (TCTG) concept in a light duty vehicle and its impact on fuel economy and GHG emissions under realistic driving conditions. The novel exhaust heat exchanger (HE) concept consists of corrugated pipes embedded in a cast aluminium matrix along with variable conductance heat pipes (VCHPs) acting as spreaders of excess heat along the longitudinal direction. This concept seems to have a quite good potential for highly variable thermal load applications, as it is able to avoid overheating by spreading heat instead of wasting it through by-pass systems. Furthermore, when compared to previous concepts by the group, it does not need gravity assistance and has a form factor similar to conventional generators. It also appears to be capable of delivering a breakthrough electric output for TEG systems in such light vehicles, with as much as 572 W and 1538 W of average and maximum electric powers during a driving cycle, respectively, and showing a quite promising reduction of 5.4% in fuel consumption and CO2 emissions. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/66257 |
DOI: | 10.1016/j.energy.2020.117154 |
ISSN: | 0360-5442 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CMEMS - Artigos em revistas internacionais/Papers in international journals MEtRICs - Artigos em revistas internacionais/Papers in international journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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2020-Energy_Working_Copy.pdf | 2,09 MB | Adobe PDF | Ver/Abrir |