Combined cycle power plant with circulating fluidized bed heat t

Details Combined cycle power plant with circulating fluidized bed heat t Combined cycle power plant with circulating fluidized bed heat t

1981-11-13

1983-09-27

Ostrager, Allen M.

Power plants

Motive fluid energized by externally applied heat

Noncommunicating heat transferring motive fluid system

122 4D, F01K 2306

Patent

active

044061285

ABSTRACT:
In a combined generating plant utilizing a fluidized bed combustor in which coal or other carbonaceous fuel is burned at substantially atmospheric pressure, an external heat transfer unit is provided through which a portion of the hot solids of the fluidized bed is circulated through tubular channels. Clean air from an air compressor is passed through the heat exchanger unit around the outside of the tubular channels, so receiving heat through them from the hot solids circulating therethrough, and is expanded in a gas turbine. The flow of hot solids through the tubular channels is controlled independently of the operation of the combustor so as to accomodate varying loads on the generating units. Steam for a other uses is generated by a conventional boiler and superheater in the combustor.

REFERENCES:
patent: 4116005 (1978-09-01), Willyoung
patent: 4223529 (1980-09-01), Willyoung
patent: 4355601 (1982-10-01), Hattiangadi

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