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Publication Title | UnitedStatesPatent Osborne SYSTEM AND METHOD FOR IMPROVED STEAM TURBINE OPERATION

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UnitedStatesPatent [19] Osborne

[54] SYSTEM AND METHOD FOR IMPROVED STEAM TURBINE OPERATION

[75] Inventor: RobertL.Osborne,Wallingford,Pa.

[73] Assignee: WestinghouseElectricCorporation, .Pittsburgh,Pa,

[1 3,928,972 ‘ [45] Dec. 30, 1975

3,359,732 12/1967 Schuetzenduebel..60/105

3,561,216 2/1971 Moore,Jr... .60/105X 3,577,733 5/1971 Manvel .. 60/105

PrimaryExaminer—Martin Schwadron AssistantExaminer-Allen M..Ostrager Attorney,Agent,orFirm-E. 1F.Possessky

[57] ABSTRACT

An electric power plant steam turbine system with programmed digital Computer‘ control in which exces Sive rotor stress and Strain are Prevented by develop

.

[22] Filed: Feb.13,1973

[21] Appl.No.:331,738

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[52] US. Cl..60/646; 60/660

[51] Int. Cl......................................F01k 13/02

[58] FieldofSearch..60/646,657,660 ingcontrolSignalsbased"P011aComparisonbetween

I [56]

3,338,053

3,358,450 12/1967 Schroedter..60/105

present calculated heat ?ow and a reference heat flow, the turbine operation being controlled by the control signals so that strain is maintained substan tially at the maximum allowable value. '

50Claims,6DrawingFigures

ReferencesCited UNITED STATES PATENTS

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Image | UnitedStatesPatent Osborne SYSTEM AND METHOD FOR IMPROVED STEAM TURBINE OPERATION



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