Optimized design for flexible polymer thermoelectric generators

Intrinsically conducting polymers are cheap, flexible, environmentally friendly and easy to manufacture. These characteristics and their low thermal conductivity make them suitable for thermoelectric generation. In this study a PEDOT:tos-Silver thermoelectric module (TEM) has been printed and tested...

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Detalles Bibliográficos
Autores: Aranguren Garacochea, Patricia, Roch, Aljoscha, Stepien, Lukas, Abt, Marvin, Lukowicz, Marian von, Dani, Ines, Astrain Ulibarrena, David
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Institución:Universidad Pública de Navarra
Repositorio:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
OAI Identifier:oai:dnet:academicae__::3b15e3e1447e612c9d314b4f6b9090dc
Acceso en línea:https://hdl.handle.net/2454/56983
Access Level:acceso abierto
Palabra clave:Thermoelectricity
Intrinsically conducting polymers
Computational model
Geometrical optimization
Descripción
Sumario:Intrinsically conducting polymers are cheap, flexible, environmentally friendly and easy to manufacture. These characteristics and their low thermal conductivity make them suitable for thermoelectric generation. In this study a PEDOT:tos-Silver thermoelectric module (TEM) has been printed and tested. A computational model able to simulate the behavior of polymer thermoelectric generators (TEGs) has been developed and validated with the experimental data. The validated computational model has been used to geometrically optimize the power generation of the polymer TEM. The p-sectional area of the p-type and n-type legs, their length and the number of thermocouples have been modified obtaining an improvement of 50 times the power generated by the printed module, the base design. The optimized geometry has been studied into a real application scenario of waste heat harvesting, a tile furnace with a smoke mass flow of 6.39 kg/s and a temperature of 187 C. The thermoelectric generation of the polymer TEG located at the exhaust of the tile furnace ascends to 21.73 MWh/year. In comparison with the bismuth-telluride commercial modules, the polymer production is six times lower, however, the advantages of the polymers materials over the commercial modules make them suitable for thermoelectric generation.