Effect of thermal conductivity of an impinging premixed butane/air circular laminar flame jet system

Numerical simulations were performed to study the heat transfer characteristics of the impingement plate of an impinging flame jet system consisting of a premixed butane/air circular flame jet impinging vertically upward upon a horizontal rectangular plate at laminar flow condition. The study concentrated mainly on the effect of thermal conductivity of the impingement plate on its heat flux. A uniform temperature boundary condition was assumed at the water-side of the plate. In order to deal with the very complicated boundary conditions at the flame-side of the plate, experimental datum of the flame temperature were correlated using a multi-polynomial function. The heat flux distributions on the impingement plate, with the variations of Reynolds number (Re), were numerically simulated. Comparison between the experimental and numerical work has been made.Department of Mechanical EngineeringRefereed conference pape