Introduction to seawater temperature difference energy

Seawater temperature difference energy refers to the thermal energy of the water temperature difference between surface seawater and deep seawater , and constitutes an important form of ocean energy. The ocean surface converts most of the sun's radiant energy into warm water and stores it in the upper layers of the ocean. On the other hand, near-freezing seawater flows slowly from the poles toward the equator over a wide area at a depth of less than 1,000 m. In this way, vertical seawater temperature differences of more than 20°C occur throughout the year in many tropical or subtropical marine areas. This temperature difference can be used to carry out thermodynamic cycles and produce electricity.