A Structural Review of Thermoelectricity for Fuel Cell CCHP Applications

Table 1

Efficiency improvement of fuel cells incorporating thermoelectric devices (adapted from [2]).

Fuel cell type	Operating temperature	Efficiency	Heat percentage waste	Power generation increase	Final efficiency	Efficiency improvement
LT–HT PEM FC	80-180°C	40%	60%	9.6%	49.6%	24%
Alkaline FC	65-220°C	60%	40%	6.4%	66.4%	11%
Phosphoric acid FC	205°C	37-42%	60%	9.6%	49.6%	24%
Molten carbonate FC	650°C	45%	55%	8.8%	53.8%	20%
Solid oxide FC	600-1000°C	45-65%	45%	7.2%	62.2%	13%