Apparatus and method for determining the rotor temperature of a

Details Apparatus and method for determining the rotor temperature of a Apparatus and method for determining the rotor temperature of a

1978-02-09

1979-11-13

Ostrager, Allen M.

Power plants

Motive fluid energized by externally applied heat

Process of power production or system operation

60657, 415 17, 415 47, F01K 1302

Patent

active

041738691

ABSTRACT:
Apparatus and method for automatically determining and indicating that the rotor of a steam turbine has attained a predetermined minimal temperature. Means are utilized for measuring axial dimensional changes of the steam turbine cylinder and rotor due to an increased temperature and summing pertinent axial dimensional changes thereby determining the axial expansion of the rotor which in turn, through known physical properties of the rotor material, corresponds to a temperature increase. This increase of the temperature added to the initial temperature of the rotor provides the total temperature, and upon the total temperature reaching a predetermined value, the steam turbine is available to be brought up to speed and loaded.

REFERENCES:
patent: 3291146 (1966-12-01), Walker
patent: 3446224 (1969-05-01), Zwicky, Jr.
patent: 3561216 (1971-02-01), Moore, Jr.
patent: 3577733 (1971-05-01), Manuel

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