Disclosed are a food heat-exchange device capable of rapidly freezing food stored in a refrigerator or thawing frozen food in the refrigerator, and a refrigerator having the same.

The refrigerator includes a body in which a storage compartment is defined, and the food heat-exchange device is mounted in the storage compartment, to enable thawing or rapid-freezing of food.

The heat exchange performance of the miniature hydraulic turbine is investigated in the lab with self-designed experimental device and flow.