Modeling a thermocell with proton exchange membrane and hydrogen electrodes

authored by
T. Marquardt, G. Valadez Huerta, S. Kabelac
Abstract

Direct conversion of thermal energy to electric energy with thermoelectric generators is an attractive technique to recover low-temperature heat. Thermoelectric generators based on galvanic cells (thermocells) provide promising results with respect to the Seebeck coefficient. In this study, based on the theory of non-equilibrium thermodynamics, we simulated a thermocell with hydrogen gas electrodes and a proton exchange membrane. We calculated a maximum power density of 1461 mW/m2 and a thermal efficiency of 2% relative to the Carnot efficiency for a cell operating with the same gas composition at both the anode and the cathode, but fully saturated at the anode. We predict a Seebeck coefficient in the range of 0.7–1.8 mV/K, higher than those of classical thermoelectric generators. The thermocell presented here provides promising values regarding the Seebeck coefficient.

Organisation(s)
Institute of Thermodynamics
Type
Article
Journal
International Journal of Hydrogen Energy
Volume
43
Pages
19841-19850
No. of pages
10
ISSN
0360-3199
Publication date
25.10.2018
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Renewable Energy, Sustainability and the Environment, Fuel Technology, Condensed Matter Physics, Energy Engineering and Power Technology
Sustainable Development Goals
SDG 7 - Affordable and Clean Energy
Electronic version(s)
https://doi.org/10.1016/j.ijhydene.2018.09.007 (Access: Closed)