Heat and mass transfer in packed beds—IV: Use of weighted moments to determine axial dispersion coefficients
✍ Scribed by H.-J. Wolff; K.-H. Radeke; D. Gelbin
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 524 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0009-2509
No coin nor oath required. For personal study only.
✦ Synopsis
The method of we&ted moments IS analysed on the basis of measured axm! dlsperslon m a methanehydrogen nuxture flowmg through a bed of glass beads at various velocities The optunum value of the Laplace parameter S IS chosen as the one avmg the mmunum devlatmn between expenment and model m the mtegrand of the second we&ted moment The correspondmg axml Qsperslon coe5clents arr lower than those determmed Hrlth ordmary moments, and agree very closely ~rlth the best-fit values m the tune domam An equation proposed by Anderssen and whtte based on other conslderatlons IS shown to gwe a relatively good approxunatlon of the optunum value of S With the rud of this near-optunum S. calcuiatmg tune for we&ted moments can be shorter than for curve fittmg m the tune domam lNTRowcTioN ANn MATHEXA TKAL TREATMEKr