Theory of blending in single inlet flow systems

✍ Scribed by Thomas J. Fitzgerald

• Publisher: Elsevier Science
• Year: 1974
• Tongue: English
• Weight: 430 KB
• Volume: 29
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(74)80094-1

✦ Synopsis

Good design requires that the fluctuations in concentration which occur at the output of a blending device be small. Using the criterion of minimum variance of the output concentration, it is shown that blender performance depends only on the residence time distribution of the blender and the autocovariance function of the input concentration. The optimal blender design is found for the case of rapid uncorrelated fluctuations at the inlet, and nearly ohtimal blender designs are found for input fluctuaction which are autocorrelated over a moderate time interval. A general method for blender design is given using discrete time increments.