The Study on Heat, Mass Transfer and Stress of porous medium Vacuum Drying
Porous medium vacuum drying is a complicated heat and mass transfer process. Based on theory of energy and mass balance, a moisture model for vacuum drying porous medium was constructed. The model is implemented and solved with two-dimensions by finite element method (FEM).The temperature, moisture and pressure inner porous medium is discussed. The moisture temperature, and moisture and temperature stress inner porous medium is simulated. The results show that the temperature stress is the larger than the moisture stress, the total stress is the drag stress. The pressure gradient is far then the moisture and temperature stress, and the effect of pressure on drying quality can be not ignored.
heat and mass transfer modelling porous medium vacuuum drying computer Simulation
Zhang Zhijun Xu Chenghai Zhang Shiwei Zhao Lili
School of Mechanical Engineering and Automation Northeastern University Shenyang, China
国际会议
北京
英文
1350-1354
2009-08-08（万方平台首次上网日期，不代表论文的发表时间）