Pumping Of Low-Temperature Deep Sea Water For Cooling Of Facilities On Land

The low-temperature deep-sea water is pumped up to coast through pipes. We cool refrigerants of refrigerating machines in the pumped low-temperature sea water. This reduces the electric power of refrigerating machines. The electric power saved exceeds the power for pumping, so that we can operate the refrigerating system with less electric power. We also use the pumped low-temperature sea water for cooling of nuclear power plants on coast. The pumped low-temperature sea water is heated by the plants only up to the temperature of surface sea water, so that enviromental changes caused by the increase of the temperature of surface sea water can be avoided.