Mitha, Sohail Anjum Abdussattar

King Fahd University of Petroleum and Minerals

An experimental model study to investigate the effect 
of scale on dispersion characteristics in chlorine 
contact chambers. 
Sohail Anjum Abdussattar Mitha 
Civil Engineering 
1987 
Abstract 
This thesis outlines an experimental research in which Tracer studies were carried out in four 
geometrically similar models, operated under an equal detention time criterion.  The scale effect on 
dispersion characteristics is investigated to determine how closely the performance of a prototype could 
be predicted from a laboratory study on scaled down models.  A number of parameters and indices are 
considered in the investigation, some of which are the dispersion number, the normalized variance, the 
coefficient of dispersion, the Morril index, the index of short circuiting, etc.  The effect of scale on each 
parameter is studied and the interpretation of experimental data is presented. 
 
It was observed from output generated curves that the coefficient of dispersion is influenced by 
scale.  However, the normalized variance and the dispersion number (which are related to each other) are 
to a large extent, independent of scale, at least for longitudinal basins larger than 5.6 cm width and for all 
practical detention times. 


An experimental model study to investigate the effect of scale on dispersion characteristics in chlorine contact

https://eprints.kfupm.edu.sa/id/eprint/1993/1/WR_M_A__1.pdf

An experimental model study to investigate the effect of scale on dispersion characteristics in chlorine contact

Abstract

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King Fahd University of Petroleum and Minerals