A Review on the Applications of Chemical Reactor Network via Computational Fluid Dynamics Hybrid Method in Order to Predict the Pollutant Emissions

Nowadays, the reduction of pollutants emission from combustion processes is integrated to the design of combustors. The chemical reactor network approach is a applicable method for estimating the emission of pollutants such as NOx in combustion systemsdue to cost reductions, fast and appropriate accuracy in results. This method requires the initial flow field data to build the reactors network. In this paper, the application of computational fluid dynamics as one of the most commonly used methods in determiningthe flow field characteristics and providing basic information for the construction of reactors networks was investigated. In this paper various approaches of turbulent flow modeling, applied chemical mechanisms and combustion regimes were studied in order to use the results in constructing CRNs. Although CFD can enhance the constraction of CRNs and improve the results butit should be noted that increasing the fidelity of CFD results should not be the cause of adding computational costs because CRNs can provide appropriate results even with a minimal number of reactors.