CPFD simulation of a 10 MWth chemical looping combustion reactor
This paper presents a comprehensive computational particle fluid dynamics(CPFD)simulation of a self-designed 10 MWth chemical looping combustion(CLC)reactor,providing detailed gas-solid two-phase flow hydrodynamic information within the system.First,the reliability of various drag models was validated based on classical experiments.Subsequently,utilizing the preferred EMMS-Yang drag model,the system was simulated comprehensively to analyze pressure balance within the system.Furthermore,the key parameters such as solid circulation rate,solid concentration distribution within the reactor,and pressure distribution were analyzed.The detailed results which are difficult to measure in operation can guide the development of operational conditions optimization and reactor control strategies.The simulation results show that the reactor system realizes good pressure balance,the solid circulation rate at the outlet of the air reactor reaches 103.80 kg/s,the solid circulation rate at the outlet of the fuel reactor reaches 40.10 kg/s,and the lower loop seal returns the material smoothly,which makes the system reach the stable operation state quickly.
chemical looping combustionCPFD simulationdrag modelspressure balance
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