Development of a Simple Model to Predict Cross Ignition Probability in Annular Combustors Equipped with EV Burners

Prediction of cross ignition is one of the most formidable challenges in annular combustors. In order to study cross ignition, it is necessary to consider at least a sector of a combustor comprising of at least three burners, which makes the study both numerically and experimentally expensive. In this light, developing an analytical method to predict cross ignition probability is of practical interest. The main objective of the present paper is to develop an analytical method to predict cross ignition probability in an annular combustor utilizing 18 second generation EV burners. The present model is developed based on the previously proposed model by Hirsch et al.[1]. Here, the developed model is validated against experimental data. Validations show that the present model can accurately predict cross ignition probability. The validated model is used to improve cross ignition probability in the investigated gas turbines. The present model can be used during the combustor design and optimization processes. Furthermore, the model can be utilized as a fly on tool in the gas turbine logic to improve cross ignition probability