Development of a Combustor to burn raw producer gas

•Successful lab demonstration of a cyclone combustor burning hot and raw producer gas•Good mixing of fuel and air attained; flame stable over operating range•Emissions meet regulatory norms

The development of a combustor, designed to burn raw producer gas that is not subjected to conventional gas cleaning processes, is presented. The combustor had tangential fuel and air inlets that caused a swirling flow inside it in order to facilitate fuel-air mixing and flame stabilization. The mixing and combustion performances of the combustor are characterized herein experimentally and via numerical simulations. Both measurements and simulations indicated good fuel-air mixing, the presence of a stable flame over a range of operating conditions and complete combustion of fuel. Measurement of particulate matter concentration at the combustor exit indicated that the combustor conforms to Indian regulatory norms.