Method for Determining Emission Values Of A Gas Turbine, And Apparatus For Carrying Out Said Method

Abstract

A method for determining emission values of a gas turbine comprises the following steps: performing a test run of the gas turbine; determining operating parameters (T0, T4, T4*, NGG, output) of the gas turbine during the test run; determining first emission values (NOx) during the test run; storing a correlation (NOx(T4*)) between the operating parameters and the first emission values; and, during operation, determining operating parameters (T0, T4, T4*, NGG) of the gas turbine; and determining second emission values (NOx 15% O2 dry exhaust) corresponding to the stored correlation (NOx(T4*)) between the operating parameters and the first emission values.

1 - 10 . (canceled) 
     
     
         11 . A method for determining emission values of a gas turbine comprising the steps of:
 (a) carrying out a test run of the gas turbine;   (b) determining operating parameters (T0, T4, T4*, NGG, output) of the gas turbine during the test run;   (c) determining first emission values (NOx) during the test run;   (d) storing a correlation (NOx(T4*)) between the operating parameters and the first emission values; and   (e) determining during operation of the gas turbine operating parameters (T0, T4, T4*, NGG) of the gas turbine; and   (f) determining second emission values (NOx — 15% O2 dry exhaust) corresponding to the stored correlation (NOx(T4*)) between the operating parameters and the first emission values.   
     
     
         12 . The method according to  claim 11 , wherein the operating parameters include one or more of an ambient temperature (T0), a gas turbine temperature (T4, T4*) at the inlet or outlet of the gas turbine, a load level (LS) of the gas turbine, a speed (NGG) of the gas turbine, an exhaust gas mass flow (dm/dt), an exhaust gas volume flow (dV/dt), a density (p) and a pressure (p) of one of the air supplied to the gas turbine and of the exhaust gas of the gas turbine. 
     
     
         13 . The method according to  claim 12 , wherein the gas turbine temperature (T4) which is corrected in accordance with the ambient temperature (T0), is used as an operating parameter (T4*). 
     
     
         14 . The method according to  claim 12 , wherein one of an exhaust gas mass flow (dm/dt) and an exhaust gas volume flow (dV/dt) is determined during operation from operating parameters (T0, T4*, p), and is used as an operating parameter (dV/dt). 
     
     
         15 . The method according to  claim 11 , wherein the first emission values (NOx) comprise specific emission values scaled to an exhaust gas volume flow or exhaust gas mass flow. 
     
     
         16 . The method according to  claim 11 , wherein the first emission values (NOx) are determined during the test run by measurement under standardized conditions. 
     
     
         17 . The method according to  claim 11 , additionally comprising introducing during the test run different load levels (T4, T4*, LS) of the gas turbine. 
     
     
         18 . The method according to  claim 11 , additionally comprising the step of calibrating the stored correlation (NOx(T4*)) between the operating parameters and the first emission values at least once prior to operation. 
     
     
         19 . A device for a gas turbine which is designed to carry out the method according to  claim 11 . 
     
     
         20 . The device according to  claim 19 , comprising one of an output device for outputting the second emission values and a storage device for storing the second emission values. 
     
     
         21 . The method of  claim 12 , wherein the operating parameter is the gas turbine temperature at the inlet or outlet of the low pressure of high pressure stage of the gas turbine. 
     
     
         22 . The method of  claim 13 , wherein the gas turbine temperature is corrected by reducing the gas turbine temperature of one half of the ambient temperature. 
     
     
         23 . The method of  claim 14 , wherein one of an exhaust gas mass flow and exhaust gas volume flow is determined from an operating map. 
     
     
         24 . The method of  claim 16 , wherein the first emission values are determined by measurement under standardized conditions comprising one of a determined moisture content of the exhaust gas and a determined oxygen proportion in the exhaust gas. 
     
     
         25 . The method of  claim 24 , wherein the oxygen content in the exhaust gas comprises an oxygen content of 15% in the dry state.