Analytical Model to Characterize the Efficiency of Disk Stack Separators. Issue 6 (20th April 2020)

• Record Type: Journal Article
• Authors: König, Julian; Ueding, Jens; Janoske, Uwe
• Is Part Of: Chemie Ingenieur Technik. Volume 92:Issue 6(2020)
• Page Start: 701
• Page End: 710
• Publication Date: 2020-04-20
• Subjects: Analytical model -- Disk stack separator -- Particle separation -- Separation rate; Chemical engineering -- Patents -- Periodicals; Chemical engineering -- Periodicals; Chemical industry -- Periodicals; Chemistry, Technical -- Periodicals; 660.05
• DOI: 10.1002/cite.201900177
• Languages: English
• ISSNs: 0009-286X

Abstract

Abstract: Up to now the prediction of separation efficiency for disk stack separators is largely based on the concept of equivalent clarification area, short Σ‐theory, firstly published in 1949. An improved analytical model with a closed‐form solution is presented in which the assumptions of uniform flow and unhindered solids transport are dropped. The contributions of distributor and solids holding space to the total separation efficiency are considered. The model is validated by comprehensive experiments with different geometry parameters and particle systems. The results are presented in a universal form for a combination of dimensionless numbers. Abstract : Based on the Σ‐theory an improved analytical model for separation efficiency is presented in which assumptions of uniform flow and unhindered solids transport are dropped. Furthermore, contributions of distributor and solids holding space are considered. The model is validated by comprehensive experiments in which geometry parameters and particle systems are varied.