Publication:
Experimental study and optimization of thermoelectric-driven autonomous sensors for the chimney of a biomass power plant

Date

2014

Director

Publisher

Acceso abierto / Sarbide irekia
Artículo / Artikulua
Versión enviada / Bidali den bertsioa

Project identifier

MICINN//DPI2011-24287/ES/recolecta

Abstract

In the work discussed in this paper a thermoelectric generator was developed to harness waste heat from the exhaust gas of a boiler in a biomass power plant and thus generate electric power to operate a flowmeter installed in the chimney, to make it autonomous. The main objective was to conduct an experimental study to optimize a previous design obtained after computational work based on a simulation model for thermoelectric generators. First, several places inside and outside the chimney were considered as sites for the thermoelectricity-driven autonomous sensor. Second, the thermoelectric generator was built and tested to assess the effect of the cold-side heat exchanger on the electric power, power consumption by the flowmeter, and transmission frequency. These tests provided the best configuration for the heat exchanger, which met the transmission requirements for different working conditions. The final design is able to transmit every second and requires neither batteries nor electric wires. It is a promising application in the field of thermoelectric generation.

Description

Esta es la versión no revidada del artículo: Rodríguez, A., Astrain, D., Martínez, A. et al. Experimental Study and Optimization of Thermoelectricity-Driven Autonomous Sensors for the Chimney of a Biomass Power Plant. Journal of Elec Materi 43, 2415–2419 (2014). Se puede consultar la versión publicada en http://doi.org/10.1007/s11664-014-3097-2

Keywords

Thermoelectric generation, Waste heat, Autonomous sensor, Thermal resistance

Department

Ingeniería Mecánica, Energética y de Materiales / Mekanika, Energetika eta Materialen Ingeniaritza

Faculty/School

Degree

Doctorate program

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