Characterization of a Peltier module working as a thermoelectric generator

Abstract

We studied the suitability of current thermoelectric devices as electrical power generators, measuring the I-V curves of a Peltier cooler under field-like conditions. We designed an experimental system that allowed the Peltier module to work under a constant thermal input ux or a constant temperature difference. From these I-V curves we have calculated the thermoelectric figure of merit and the conversion e ciency of the device, comparing it with maximum theoretical values.