A geothermal power plant uses geothermal liquid water at 160C at a rate of 440 kg/s as

Question:

A geothermal power plant uses geothermal liquid water at 160°C at a rate of 440 kg/s as the heat source, and produces 14 MW of net power in an environment at 25°C. If 18.5 MW of energy entering the plant with the geothermal water is destructed within the plant, determine
(a) The energy of the geothermal water entering the plant,
(b) The second-law efficiency, and
(c) The energy of the heat rejected from the plant. Energy Analysis of Closed Systems