Effects of the internal structures of monolith ceramic substrates on thermal and hydraulic properties: additive manufacturing, numerical modelling and experimental testing

摘要: Rigorous emission regulations call for more efficient passive control catalysts exhaust gas aftertreatment without affecting the internal combustion process and CO2 emissions. Although state-of-art ceramic honeycomb substrate designs provide high surface area a degree of flexibility heat mass transfer adaptations, additional reduction benefits can be achieved when flexible to effective thermal management are introduced. The conventional cordierite substrates manufactured by extrusion; therefore, only with straight channels fabricated. This study aims highlight any design limitations employing additive manufacturing as main method diamond lattice structures using DLP (digital light processing) technology. Both studied numerically experimentally flow through resistance temperature distribution. Numerical predictions experimental results showed good agreement. show increase axial distribution significant decrease pressure drop (38–45%) in comparison benchmark similar area.