Navýšení výkonu turbíny při vyřazeném regulovaném odběru

Abstract

The thesis deals with the proposal for modification of the condensing circuit to deliver missing cooling performance during operation of the steam turbine at maximum output 17 [MW] with closed regulated extraction. In the thesis, I focused on the calculation of the optimal heat exchange surface for the desired operating condition. I compared the calculated optimal surface to the existing heat exchange surface of the condenser and on the basis of these values I suggested alternative parameters of the external condenser or substitution of the existing condenser. I described alternative necessary modifications of other devices of the condensing circuit. By implementation of mentioned modifications I achieved the increase of the active power from 14 [MW] to 17 [MW] during turbine operation with closed regulated extraction. In conclusion I carried out the economic and technical assessment of the individual variant