The residence time distribution for ideal laminar flow in helical tube

✍ Scribed by D.M. Ruthven

• Publisher: Elsevier Science
• Year: 1971
• Tongue: English
• Weight: 665 KB
• Volume: 26
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(71)80025-8

✦ Synopsis

A theoretical residence time distribution is derived for ideal laminar flow through a helical tube with no diffusion. It is shown that, when the flow pattern is fully developed, the residence time distribution becomes approximately independent of curvature and Reynolds number and may be closely approximated by the expression E(0) = 0 for 0 < 0 < 0.613, E(0) = 0.705 0-**' for 0 > 0.613. The conditions of applicability are considered and it is shown that the theory should be a reasonable approximation for liquid phase systems over a limited range of conditions.