Computational-fluid-dynamics study of a Kenics static mixer as a heat exchanger for supercritical carbon dioxide

摘要: Abstract The thermal efficiency of a Kenics® KM static mixer used to pre-heat supercritical carbon dioxide, under high pressure conditions, is studied using computational fluid dynamics (CFD). A mesh sensitivity analysis performed and the CFD model validated against experimental results on heat transfer with conventional fluids. Three turbulent models – standard k–ɛ, RNG k–ω are employed flow conditions; effects large variations physical properties in pseudo-critical region also studied. k–ɛ gives that closer data than other two turbulence models. numerical show has more three times higher empty pipe exchanger similar area.