Heat loss prediction of a confined premixed jet flame using a conjugate heat transfer approach

•CHT improves prediction of brunt gas temperatures in near wall recirculation areas.•CHT does not have a significant effect on flame shape and length.•The solid acts as a low-pass filter for the transport of temperature fluctuations.•Radiative heat transfer is a an order of magnitude less than convective heat transfer.•Radiative heat transfer is important in the flame front and hence for flame dynamics.