Consider the ocean the rmal energy conversion system given in the lecture notes.

Question

Consider the ocean the rmal energy conversion system given in the lecture notes. Also take into consideration that 30 % of the gross energy output is required to move the water. Evaluate the maximum possible efficiency. Actual efficiencies of less than 3 % can be achieved. Determine the the rmal efficiency of the system based on the ammonia Rankine system and the data provided in the lecture slide for a 100 MW plant. Assume the pump inlet is saturated liquid and the turbine inlet is saturated vapor. Also assume the turbine is reversible and negligible pressure drop in the condenser and evaporator.

Explanation / Answer

a)70 % b) 70 MW

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