Abstract
This study established a CFD model to simulate fluid phenomenon of helical rings in absorbers, as well as the model was validated by the experiment of bench scale absorber. This study has a system to tell everyone how to establish a random packing model by helical packings and using computational fluid dynamics by implicit VOF method combined PID controller to control pressure for calculate interfacial area、liquid holdup and pressure drop. Moreover, this research used CO2 and NaOH to finish interfacial area experiment for Raschig rings and helical rings；In the other hand, this study used N2 and RO water to achieve liquid holdup experiment for Raschig rings and helical rings. By the simulated results, we find the simulated interfacial area was significantly close to the experimental interfacial area but the simulated liquid holdup was s lower than the experimental liquid holdup. Therefore, we find the reason is simulated method and we discuss different simulated method and choose which method is better for our case.