System and method for determining combustion temperature using infrared emissions
AssigneeEn'Urga, Inc.
InventorYudaya Raju Sivathanu
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Abstract
The present invention relates to a combustion temperature sensor, and, more particularly, to a combustion temperature sensor that measures infrared energy emitted at several preselected wavelengths from a flame and/or a flame's hot gas at a turbine inlet location and applies the energy signals to a calculation model to yield temperature.
Claims17
A method of determining temperature from a plurality of radiation intensity values, said method comprising the steps of:
- creating a look-up table of a plurality of simulated radiation intensity values being calculated as a function of a range of temperature values and a range of molar concentration values of CO2 and H2O;
- receiving a plurality of values of input radiation intensity signals;
- comparing the values of said input radiation intensity signals with said simulated radiation intensity values and determining a temperature value from the value of said input radiation intensity signals.
A system for determining temperature from optical energy comprising a processor to receive a plurality of values of input radiation intensity signals and a database having a look-up table, said look-up table being created by calculating a plurality of simulated radiation intensity values as a function of temperature, and being formatted into a plurality of columns, one column for each said simulated radiation intensity values at a preselected wavelength and a column of temperatures values, each row of said simulated radiation intensity values corresponding to a row in said column of temperature values, said processor also being for comparing said input radiation intensity values to said simulated radiation intensity values and determining temperature based on the corresponding simulated radiation intensity values that are substantially identical to said input radiation intensity values.
Dependencies are inferred from the claim text.