| CPC H01L 23/427 (2013.01) [B08B 9/032 (2013.01); F28D 1/0325 (2013.01); F28D 1/05325 (2013.01); F28G 13/00 (2013.01); H05K 7/20 (2013.01)] | 11 Claims |
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1. A heat exchanger that cools a cooled object by heat exchange between the cooled object and a liquid coolant, the heat exchanger comprising:
a heat exchanger body that includes a circulation path through which the coolant is circulated and performs heat exchange between the coolant flowing through the circulation path and the cooled object;
a coolant supply pump that supplies the coolant to the heat exchanger body;
an accumulation determination unit that determines whether a foreign matter accumulation condition is fulfilled that is satisfied when foreign matter is determined to be accumulated in at least a part of the circulation path; and
a process execution unit that in response to the foreign matter accumulation condition being satisfied, executes a foreign matter cleaning process of removing the foreign matter accumulated in the circulation path and cleaning the circulation path, wherein
in the foreign matter cleaning process, the process execution unit reduces an amount of coolant supplied from the coolant supply pump so that the coolant has a superheating degree in a nucleate boiling region.
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