| 摘要 |
The invention relates to a method for operating a cogeneration plant (10), wherein a first portion of a first fuel is electrochemically converted in at least one fuel cell (21) of a fuel cell system (20) of the cogeneration plant (10), whereby electrical power and heat are generated, wherein a second portion of the first fuel, exiting the fuel cell (21) without converting, is burned in an afterburner (24) of the fuel cell system (20) after exiting the fuel cell (21), and heat is thereby generated, wherein a second fuel can be burned in a heat generator (30) of the cogeneration plant (10) and heat can thereby be generated, wherein an optimal first portion of the first fuel can be converted at an optimal operating point of the fuel cell (21). According to the invention, when a demand for heat is greater than can be generated in the fuel cell system (20) at the optimal operating point of the fuel cell (21), the first portion of the first fuel is reduced relative to the optimal operating point, so that more heat is generated in the afterburner (24) than at the optimal operating point. |
