45. CFD Analysis of Temperature Profile and Pattern Factor at the Exit of Swirl Dump Combustor

The practical challenge in analysis within the field of turbine combustion primarily centers on a clean emission, an occasional liner wall temperature, a standardized exit temperature distribution for turbo machinery applications alongside a fuel economy of the combustion method. Dump combustor may be a form of lean-burning combustor. Lean-burning combustors square measure at risk of combustion instabilities to boot because of non-uniformities within the fuel–air commixture, and within the combustion method, there usually exist hot areas within the combustor exit plane. These hot areas limit the in-operation temperature at the rotary engine body of water and so constrain performance and potency. The present work was directed toward the experimental study of temperature profile at the exit of dump combustor due to the interaction of swirling combustion air and a spray of kerosene fuel issuing from a fuel injector in the cylindrical type dump combustor. The study was done by different values of settling chamber pressure and different fuel flow rate. The effect of equivalence ratio φ, flow velocity, and air mass flow rate is also described. Pattern factor at different equivalence ratios is also observed. Effect of swirl on pattern factor and temperatures at the exit of combustor is described in this report. Flammable limit for the combustor is also calculated. Temperature is recorded with the help of four k-type thermocouples. Thermocouples are placed at the different radial distance from the combustor’s wall. All the testing was performed at limited pressure and limited fuel–air ratio and also for the two different fuel injector with two different positions.