METHOD AND APPARATUS FOR MONITORING THE PERFORMANCE OF A GASTURBINE SYSTEM

摘要

A method for monitoring performance of a gas turbine system (20) compris es providing a plurality of combustor cans (30); placing a plurality of temperature sensors (40) circumferentially around an exhaust plane of the plurality of combustor cans; operating the plurality of combustor cans while varying a plurality of gas turbine operating parameters, where exhaust gas issues from each combustor c an of the plurality of combustor cans during operation; measuring temperature of t he exhaust gas in the exhaust plane using the plurality of temperature sensors to obtain a plurality of individual temperature measurements; determining a correlation of the individual temperature measurements of exhaust gas temperature with corresponding individual combustor cans of the plurality of combustor cans issuing the exhaust gas; and developing a swirl model (70), where the model uses the correlation to predict swirl values in the exhaust plane as a function of the operating parameters.