Abstract: A refrigerator includes a body, first and second storage compartments, first and second refrigerating units to cool the first and second storage compartments, and a heat exchanger to individually condense first and second refrigerants of the first and second refrigerating units and a second refrigerant of the second refrigerating unit. The heat exchanger includes first and second headers each having an opening formed in the outer wall, a tube inserted into the first and second headers through the openings, and a baffle disposed in the internal space of the first header so as to partition off the internal space of the first header. The tube includes a plurality of channels spaced apart from each other by a predetermined gap, and the baffle blocks at least one of the plurality of channels.

Abstract: A refrigerator having a freezer compartment and a refrigerator compartment that circulates two individual refrigerating cycles using two compressors so as to individually cool the freezer compartment and the refrigerator compartment. The refrigerator includes two compressors, two condensers, two expansion valves, and two evaporators. One of the two condensers is disposed in a machine compartment and the other condenser is disposed outside the machine compartment so that a heat dissipation effect of the machine compartment can be improved and arrangement availability can be increased.