Method for starting up a combination gas and steam power plant

Power plants – Combustion products used as motive fluid

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Details

60 39141, 60 39182, F02C 726, F02C 618

Patent

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056827377

ABSTRACT:
In a method for starting up a combination plant designed as a single-shaft plant with a common shafting (10) and essentially consisting of a compressor (1), a combustion chamber (2), a turbine (3), a steam turbine (5), a generator (6) and a fuel compressor (4) for compressing low-calorie fuels (12), the steam turbine (5) is started up by means of extraneous steam (33) introduced into the steam turbine. The gas turbine (1, 2, 3) is started up by means of the steam turbine (5), medium-calorie or high-calorie auxiliary fuel (21) is ignited in the combustion chamber (2) and the shafting (10) is run at nominal speed. The power required for compressing the low-calorie fuel (12) in the fuel compressor (4) is applied by means of the auxiliary fuel (21) and the extraneous steam (33) and, when there is sufficient pressure in the fuel compressor (4), a changeover is made from the auxiliary fuel (21) to the low-calorie fuel (12).

REFERENCES:
patent: 2826038 (1958-03-01), Shannon et al.
patent: 4212160 (1980-07-01), Blaskowski
patent: 5148668 (1992-09-01), Frutschi
patent: 5329757 (1994-07-01), Faulkner et al.

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