Sea surface cooling system utilizing otec

A sea surface cooling system utilizing OTEC, comprising:

• means for drawing surface seawater;
• deep seawater pumping means, having a draw pipe, for pumping deep seawater through the draw pipe;
• evaporator means for heating and vaporizing working fluid with a low boiling point by said drawn surface seawater;
• mechanical power producing means for producing mechanical power by an expansion force of said vaporized working fluid;
• condensation means for cooling said vaporized working fluid after said expansion by said pumped deep seawater to cause condensation;
• means for circulating said condensed working fluid to said evaporator means;
• and
• mechanical power transmission means for directly transmitting from said mechanical power producing means to said pumping means a mechanical power of variable ratio, without once converting said mechanical power into electric power, wherein said deep seawater pumping means is operated to pump deep seawater through the draw pip with said mechanical power.