Turbine exhaust arrangement for improved efficiency

Details Turbine exhaust arrangement for improved efficiency Turbine exhaust arrangement for improved efficiency

1991-03-08

1992-12-29

Ostrager, Allen M.

Power plants

Motor having exhaust fluid treating or handling means

Motor and indirect heat exchanger

60693, 60694, 60697, F01K 900, F01K 1102

Patent

active

051741202

ABSTRACT:
Steam exhaust outlets of a low pressure steam turbine are fitted with a divider plate to separate exhaust steam into isolated flow paths in fluid communication with a condenser. Separation of the flow paths is maintained through the condenser so that heat rate is improved by lower average back pressure and higher temperature condensate exiting the condenser. In a double flow turbine, a further divider plate separates steam from one exhaust outlet from that of the other exhaust outlet thereby creating four steam flow paths to the condenser.

REFERENCES:
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patent: 4553396 (1985-11-01), Heizer
patent: 4557113 (1985-12-01), Silvestri, Jr. et al.
patent: 4567729 (1986-02-01), Roddis
patent: 4628212 (1986-12-01), Uehara et al.
Oleson et al.; "Dry Cooling for Large Nuclear Power Plants"; Power Generation Systems Report No. Gen-72-004; Feb., 1972; pp. 11-1 through 11-20.
Elliott et al.; "Air-Cooled Concensers"; Power; Jan., 1990; pp. 13-21.
Kosten et al.; "Operating Experience and Performance Testing of the World's Largest Air-Cooled Condenser"; Proceedings of the American Power Conference; 1981; vol. 43, pp. 400-412.

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