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|BINARY CYCLE POWER PLANT
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If the water that reaches the surface is not hot enough to produce steam, it can still be used to produce electricity by feeding it into a Binary Power Plant. The hot water is fed into a heat exchanger. The heat from the water is absorbed by a liquid such as isopentane which boils at a lower temperature. The isopentane steam is used to drive turbines, producing electricity. The isopentane then condenses back to its liquid state and is used again.
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