|
|
|
| Calculation of shell-side mass transfer coefficient in hollow fiber dialyzer |
1. School of Energy and Power Engineering, Jiangsn University, Zhenjiang, Jiangsu 212013, China; 2. Department of Mechanical Engi- neering, University of Washington, Seattle, WA 98195, USA; 3. Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei, Anhui 230027, China）
|
|
|
|
|
Abstract The shell-side mass transfer coefficients of a hollow fiber dialyzer under regular arrays were deduced theoretically. Triangular and square arrays were used to model hollow fiber distribution, and the hollow fiber outer radii polydispersity was modeled by the Gaussian function. The influence of the fiber radii polydispersity on the shell-side mass transfer coefficient under conditions of constant velocity, constant pressure drop and constant flux were investigated by using the semi-empirical model and equations. The results show that the hollow fiber outer radii polydispersity leads to the decrease of average shell-side mass transfer coefficient, and greater influence at higher packing density. The results are of great importance to the improvement of the hollow fiber dialyzer.
|
|
|
|
|
|
|
|
|
2009, Vol. 30 
