| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot module capable of preferentially cooling a portion at a highest temperature in a fuel battery cell stack.SOLUTION: A third heat exchanger 18C is disposed so as to surround a fuel battery cell stack 14. Within the third heat exchanger 18C, a first passage 138, a second passage 140, a third passage 142 a fourth passage 144 and a fifth passage 146 are provided in order from the bottom. Air is circulated from the third passage 142 that is positioned in the center in a vertical direction, air is circulated in the order of the third passage 142, the second passage 140 and the first passage 138 and air is circulated in the order of the third passage 142, the fourth passage 144 and the fifth passage 146. Air is first circulated in the third passage 142 confronting a central part of the fuel battery cell stack 14 in the vertical direction, such that the central part at a highest temperature in the fuel battery cell stack 14 in the vertical direction can be preferentially cooled. |
