Power plants – Combustion products used as motive fluid – Different fluids
Patent
1974-08-08
1976-05-18
Gordon, Clarence R.
Power plants
Combustion products used as motive fluid
Different fluids
60 3918B, 60 3928R, 23515021, 290 40R, F02C 726
Patent
active
039568830
ABSTRACT:
A combined cycle electric power plant includes gas and steam turbines and steam generators and a digital/analog control system. An automatic digital portion of the control system functions with temperature and other detectors to provide temperature limit control for the gas turbines through the fuel valve position controls provided therefor. A blade path temperature reference is generated as a function of combustor shell pressure during the startup and load modes of operation, and during the load mode of operation the blade path temperature reference is further generated with dependence on the actual turbine exhaust temperature. In particular, the turbine blade path temperature is allowed to rise under loading operation until it reaches a limit value defined by a predetermined combustor shell pressure characteristic curve. Thereafter, the blade path temperature reference is permitted to rise to a higher and final limit value which exists when the actual exhaust temperature equals a limit temperature value defined by another combustor shell pressure characteristic curve which is higher than the first curve.
REFERENCES:
patent: 2971337 (1961-02-01), Wintrode
patent: 3283499 (1966-11-01), Scheidler
patent: 3421317 (1969-01-01), Bedford
patent: 3469395 (1969-09-01), Spitsbergen
patent: 3758764 (1973-09-01), Harner
patent: 3854287 (1974-12-01), Rembold
Anderson Joel M.
Hobbs Milton M.
Kiscaden Roy W.
Wescott Kermit R.
Gordon Clarence R.
Possessky E. F.
Westinghouse Electric Corporation
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