System and method for measuring temperature within a turbine system
AssigneeGeneral Electric Company
InventorsRahul Jaikaran Chillar, Julio E. Mestroni, Eric J. Kauffman, Adil Ansari
Life of this patent
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Abstract
A system includes a radiation detector array configured to direct a field of view toward multiple conduits within a fluid flow path from a turbine into a heat exchanger. The radiation detector array is configured to output a signal indicative of a multi-dimensional temperature profile of the fluid flow path based on thermal radiation emitted by the conduits. The system also includes a controller communicatively coupled to the radiation detector array. The controller is configured to determine a temperature variation across the fluid flow path based on the signal, and to compare the temperature variation to a threshold value.
Claims18
A system comprising:
- a radiation detector array configured to direct a field of view toward a plurality of conduits within a fluid flow path from a turbine into a heat exchanger, wherein the radiation detector array comprises a plurality of thermopile elements, each thermopile element is directed toward a different region of the plurality of conduits, and the radiation detector array is configured to output a signal indicative of a multi-dimensional temperature profile of the fluid flow path based on thermal radiation emitted by the plurality of conduits;
- and
- a controller communicatively coupled to the radiation detector array, wherein the controller is configured to determine a temperature variation across the fluid flow path based on the signal, and to compare the temperature variation to a threshold value.
A system comprising:
- a turbine configured to provide a flow of a first fluid in a downstream direction;
- a heat exchanger configured to receive the flow of the first fluid and to transfer heat from the first fluid to a second fluid, wherein the heat exchanger comprises a plurality of conduits configured to convey the second fluid through the flow of the first fluid;
- and
- a radiation detector array directed toward a cross-section of the heat exchanger crosswise to a flow direction of the first fluid, wherein the radiation detector array comprises a plurality of thermopile elements, each thermopile element is directed toward a different region of the cross-section of the heat exchanger, and the radiation detector array is configured to output a signal indicative of a multi-dimensional temperature profile of the cross-section based on thermal radiation emitted by the plurality of conduits;
- and
- a controller communicatively coupled to the radiation detector array, wherein the controller is configured to determine a temperature variation across the cross-section based on the signal, and to compare the temperature variation to a threshold value.
A method comprising:
- obtaining a measurement of thermal radiation from a fluid flow path from a turbine into a heat exchanger via a radiation detector array, wherein the radiation detector array comprises a plurality of thermopile elements, and each thermopile element is directed toward a different region of the fluid flow path;
- determining a multi-dimensional temperature profile of the fluid flow path based on the measurement;
- determining a temperature variation across the fluid flow path based on the multi-dimensional temperature profile;
- and
- comparing the temperature variation to a threshold value.
Dependencies are inferred from the claim text.