In order to recover the waste heat of proton exchange membrane fuel cell (PEMFC) and improve the comprehensive energy efficiency of fuel cell system, a design method of distributed fuel cell cogeneration system was proposed. The thermoelectric output model of the system was built to analyze the thermoelectric output characteristics of the system under different current densities, different ambient temperatures and different stack temperatures, and the feasibility and effectiveness of waste heat recovery of PEMFC were verified. This study provides a model basis for the distributed waste heat recovery of PEMFC and provides a feasibility support for integrated energy system.

cogeneration system; thermoelectric out-put characteristics; distributed heat recovery; model analysis