| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling device capable of cooling a cooling object provided in a chimney with high efficiency.SOLUTION: A cooling device according to an embodiment includes: a cylinder type chimney in which a cooling object is arranged inside, and atmospheric air flows in from a lower end and is discharged from an upper end. A lower part of the chimney is constituted of a first wall. The chimney is equipped with a second wall at a higher place than the first wall. An upper end of the first wall is located at a higher position than a lower end of the cooling object, and heat conductivity of the first wall is higher than that of the second wall. |
