Experimental investigation of a thermocell with proton exchange membrane and hydrogen electrodes

verfasst von

T. Marquardt, J. Kube, Pablo Emmanuel Radici, S. Kabelac

Abstract

The limited use of low temperature waste heat turns thermocells into attractive devices for micropower generation. In this work, a thermocell based on a proton exchange membrane with hydrogen electrodes was experimentally investigated. The dependence of the Open Circuit Voltage on the water vapor content in hydrogen as indicated by the humidifier temperature and on the applied temperature difference between anode and cathode were studied. A maximum OCV is reported at a humidifier temperature of 300K, whereas the maximum power density of 45.3μW/cm² was obtained at a humidification temperature of 323K. For the same case and a temperature difference of 35K a Seebeck coefficient of 1.75 mV/K was obtained. The experimental values were then compared to a thermocell model, which has already been published, based on Non-Equilibrium Thermodynamics and classical coefficients from literature.

Organisationseinheit(en)

Institut für Thermodynamik

Typ

Artikel

Journal

International Journal of Hydrogen Energy

Band

45

Seiten

12680-12690

Anzahl der Seiten

11

ISSN

0360-3199

Publikationsdatum

28.04.2020

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Erneuerbare Energien, Nachhaltigkeit und Umwelt, Feuerungstechnik, Physik der kondensierten Materie, Energieanlagenbau und Kraftwerkstechnik

Ziele für nachhaltige Entwicklung

SDG 7 – Erschwingliche und saubere Energie

Elektronische Version(en)

https://doi.org/10.1016/j.ijhydene.2020.02.171 (Zugang: Geschlossen)