Analytical modeling of a desiccant wheel

作者：Lee Dae Young; Kim Dong Seon^*

来源：International Journal of Refrigeration, 2014, 42: 97-111.

DOI：10.1016/j.ijrefrig.2014.02.003

• Analytical model
• Desiccant wheel
• Adsorption
• Dehumidification
• Regeneration
• Rotary

A simple integral model is presented for a desiccant wheel. The original governing equations for a desiccant wheel were simplified to a set of linear ordinary differential equations and an analytical solution was obtained. A brief analysis is given about the solution regarding the non-dimensional numbers that decide the behavior of a desiccant wheel. From the solution, algebraic expressions were obtained for time-averaged heat and mass transfer rates and the results were compared with a numerical model and a set of experimental data in the literature. In comparison with the numerical model, relative error was found less than 12% at 120 degrees C regeneration temperature and 10% standard deviation was observed with the experimental data. The analytical model is considered capable of describing a symmetric desiccant wheel realistically.

• 出版日期2014-6