Power plants – Motive fluid energized by externally applied heat – Power system involving change of state
Patent
1998-06-19
2000-01-11
Kamen, Noah
Power plants
Motive fluid energized by externally applied heat
Power system involving change of state
60652, 60688, F01K 1300
Patent
active
060122900
ABSTRACT:
A large electrical power plant includes two operating units, one of which is more efficient and is run as a base load unit. The less efficient operating unit is run only during periods of peak demand or when the more efficient unit is down. Hot condensate from the more efficient unit is cooled in the condenser of the less efficient unit and then sprayed into the turbine outlet of the more efficient unit. This condenses steam more efficiently, at a lower pressure, and allows the more efficient unit to produce more electricity because there is a greater pressure differential across the turbine. In addition, cool condensate is sprayed into the duct connecting the turbine and the condenser to reduce choking flow, when it is prone to occur. In addition, cool make up water is sprayed into the condenser of the operating unit.
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