Technological evaluation of printed, large surface thermoelectric generators for waste heat recuperation: design, simulation and optimization

Franke, Leonard

Tesis de maestría:
Technological evaluation of printed, large surface thermoelectric generators for waste heat recuperation: design, simulation and optimization

dc.contributor.advisor	Hecht, Matthias
dc.contributor.author	Franke, Leonard
dc.date.accessioned	2017-10-30T17:19:25Z
dc.date.available	2017-10-30T17:19:25Z
dc.date.issued	2017
dc.description.abstract	"In future, there will be an increasing demand for waste heat recovery systems (WHRS). So far current technologies are not expected to fulfill the requirement expected for a broad deployment. Thermoelectric generators (TEGs) for the direct transformation from heat to electricity represent hereby a promising alternative. Novel printed TEGs based on organic and inorganic materials (OTEGs) will be brought to market maturity soon. The usage of new cost-efficient materials and the targeted automation as well as the scalability of the production process offer a considerable cost reduction compared to conventional TEGs, making this technology interesting for the recovery of large amounts of waste heat. Moreover, the used materials are environmentally compliant. For first time, a WHRS based on a simple plate heat exchanger design equipped with this new generation of TEGs was evaluated from a technological point of view. For this the thermal behavior of the system was simulated using the Simulink modelling environment and at the same time a fluid dynamical examination of the heat exchanger channels was conducted to determine the dissipated energy by the fluids in the heat exchanger using OpenFOAM. To determine the optimal operational conditions of the system the elaborated models where used. The models demonstrated that current generator efficiencies of ZT 0.1 could deliver next to the auxiliary energy also a surplus power of approximately 250 W compared to a heat power transferred of 39.44 kW. For future TEGs with an efficiency of ZT 0.5 an increase to 1.2 kW was determined by the models which is equivalent to a net system efficiency close to 2.5 %. The waste heat was bundled prior in a thermal oil cycle with a temperature of 230 °C while for the cooling cycle water at 15 °C was assumed".	en
dc.description.notes	Tesis Energía y Ambiente (maestría) - Instituto Tecnológico de Buenos Aires, Buenos Aires - Karlsruher Institut für Technologie, Karlsruhe, 2017	es
dc.identifier.uri	http://ri.itba.edu.ar/handle/123456789/905
dc.language.iso	en	en
dc.subject	GENERACION DE ENERGIA ELECTRICA	es
dc.subject	TRANSFERENCIA DE CALOR	es
dc.subject	INTERCAMBIADORES DE CALOR	es
dc.title	Technological evaluation of printed, large surface thermoelectric generators for waste heat recuperation: design, simulation and optimization	en
dc.type	Tesis de maestría	es
dspace.entity.type	Tesis de Maestría
itba.description.filiation	Fil: Franke, Leonard. Instituto Tecnológico de Buenos Aires; Argentina.