Method for minimizing thermo-acoustic vibrations in gas turbine combustion chambers

摘要

The vibration minimizing process comprises injecting an inert gas into the fuel flow. This gas is selected from a group consisting of nitrogen, carbon dioxide and water vapor and mixtures of these gases. The injection of the inert gas may be modulated. The complete modulation period consists of the injection of the inert gas in the form of a time-limited pulse and the subsequent missing introduction of the inert gas.