185. An Ocean-Thermal Energy Conversion power plant generates 10,000 kW using a warm
surface water inlet temperature of 26°C and cold deep-water temperature of 15°C. On the basis
of a 3°C drop in the temperature of the warm water and a 3°C rise in the temperature of the
cold water due to removal and addition of heat, calculate the power required in kW to pump
the cold-deep water to the surface and through the system heat exchanger if the required
pumping pressure increase is 12 kPa. Assume a Carnot cycle efficiency and density of cold water
to be 100 kg/m3
.
A. 108 B. 250
C. 146 D. 160
B. 250