Abstract
The previous report in this series proposed the conceptual design of a prevaporization-premixing lean combustor for application to an automotive ceramic gas turbine. In the present report, two aspects of reliability assurance are discussed. First, this paper deals with the reliability design of the emissions under transient conditions. Optimization was carried out using the simulation results of the relationship between the response of the variable combustor geometry to follow load changes and the resulting air ratio changes for low-NOx level. The load-variation pattern used in this investigation was that of the Japanese l0-15 mode regulation. Second, this paper describes the validity of the reliability design prepared for the ceramic liner of the combustor. Service life of the liner was predicted on the basis of stress analysis results and fatigue parameters.
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