Open AccessStudy on Mathematical Model of Desiccant Wheel
Author(s) -
Zhehuadu,
Xin Lin
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/512/1/012144
Subject(s) - desiccant , air conditioning , mass transfer , inlet , energy conservation , conservation of mass , boundary value problem , process (computing) , mechanics , airflow , flow (mathematics) , air mass (solar energy) , mechanical engineering , environmental science , engineering , mathematics , computer science , meteorology , boundary layer , physics , mathematical analysis , electrical engineering , operating system
In the process of dehumidification and regeneration, a complicated heat and mass transfer process occurred between air and hygroscopic materials in desiccant wheel. The performance of dehumidifier is affected by the air inlet state parameters, regeneration air inlet state, air flow, regeneration air flow, and wheel speed and many other factors.Based on the conservation of water mass and energy in the gas region of the desiccant wheel and the conservation of water mass and energy in the solid region, a differential equation describing the absorption and regeneration processes in the wheel is established. In addition to necessary boundary conditions and supplementary equations, a complete mathematical model of desiccant wheel is developed.Numerical solution of mathematical model can be obtained by using finite difference method, which can be used in calculation of actual process and optimization analysis of wheel dehumidification combined air conditioning system.