Axial dispersion in laminar flow in helical coils

✍ Scribed by R.N. Trivedi; K. Vasudeva

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 784 KB
• Volume: 30
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(75)80081-9

✦ Synopsis

The results of an experimental study of dispersion of solute in helical coils under laminar flow conditions are reported. The ranges of variables covered are 10 < h < 280, lo< NRI < 1600 and 1.5 X 1@ < Ns. < 8.7 x lo'. Under the conditions where the dispersion model holds the data are correlated with a standard deviation of 19.6 per cent. The conditions under which the dispersion model holds for helical coils are found to be less severe than those for straight tubes. It is shown that coiling can reduce axial dispersion under laminar flow conditions by a factor of upto 500.