A heat exchange system includes a heat-absorbing substance such as Liquid Natural Gas (LNG), a heat dissipation apparatus, a water storage tank, a heating portion, and a cooling portion. The heating portion is coupled between the LNG and the water storage tank. The cooling portion is coupled between the heat dissipation apparatus and the water storage tank. The cooling portion transfers heat of the heat dissipation apparatus to water of the water storage tank to heat the heating portion, and the heating portion transfers heat of the water of the water storage tank to the LNG.