A downdraft high temperature steam-only solar gasifier of biomass char: A modelling study

Biomass gasification models for downdraft gasifier: A state-of-the-art review

“…Gordillo and Belghit [62] developed a numerical model of a solar downdraft gasifier of biomass char (biochar) with steam based on the systems kinetics. The model simulates the gasifying process of biochar.…”

Modelling of solar thermochemical reaction systems

“…The Rosseland diffusion approximation (RD) is an approximate solution to the RTE in the optically thick limit that allows the definition of an effective thermal conductivity (with a cubic temperature dependence) to be defined and simply added in the thermal conduction term of the energy equation. This approximation has found wide use in the literature among studies in the dense fluidised (Gordillo and Belghit, 2011a), and stationary (Bader et al, 2015;Bala Chandran et al, 2015a;Dombrovsky et al, 2009;Ebner and Lipiń ski, 2012;Gordillo and Belghit, 2011b;Keene et al, 2013Keene et al, , 2014Lapp et al, 2013;Lapp and Lipiń ski, 2014;Lipiń ski and Steinfeld, 2004;Martinek et al, 2014;Müller et al, 2008;Yue and Lipiń ski, 2015b regimes. A thermal conductivity correlation to account for radiation in optically thick media that behaves much like the RD was used in (Ströhle et al, 2014).…”

Hybridization of concentrated solar power with biomass gasification in Brazil’s semiarid region

“…For Brazil, Soria et al [5], evaluated the possibility of hybridization of biomass direct combustion and the parabolic trough technology, focusing on a conventional Rankine cycle. Other studies proposed the coupling of CSP and biomass gasification, but focused on the gasification process itself, and did not propose a power generation cycle [18][19][20][21]. Hybridizing these two technologies for production of biofuels, using solar energy to generate steam, used as a gasifier agent is assessed in other studies.…”