| 摘要 |
Disclosed is a hot box apparatus of a fuel cell stack having a heat exchange device for collecting the heat discharged to outside and pre-heating air. The present invention is characterized in comprising a first heat exchanger comprising an outer case; a second heat exchanger installed within the first heat exchanger, and exchanging heat of the fluid transferred from the first heat exchanger; and a stack module installed within the second heat exchanger and generating high-temperature heat, wherein the first heat exchanger performs the heat exchange through a fluid path formed in the outer case itself, and the first heat exchanger and the second heat exchanger are installed to have the fluid flow successively. |
