Research challenges in combustion and gasification arising from emerging technologies employing directly irradiated concentrating solar thermal radiation

A review covers the types of solar receiver/reactor that incorporate combustion-related processes (combustion gasification and pyrolysis); combustion-related challenges associated with the use of concentrated solar radiation in practical devices; solar-specific operation notably with the high heating rates and the use of broad-band visible radiation particularly those processes in which the heat and mass transfer processes are complex non-linear and coupled with chemical reactions; similarities and differences between conditions in combustion/gasification and their solar-driven counterparts; and new challenges and opportunities for the use of optical diagnostics in combustion-related research.