Design Parameters for a Research Prototype Contactor

الملخص

Rotating spiral contacting is a novel technology
that allows an excellent control of contacting between two or
more phases flowing countercurrently through spiral
channel. This method solve the issues can arise from mixing
fluids by using the centrifugal effect to enforce the fluids to
flow side by side in a narrow channel in parallel layers
without mixing. In this work the wide channel model was
used to identify the design parameters for a research
prototype rotating spiral contactor, and examine the
performance within a wide range of operating conditions.
The study included air – water system and started by
selecting the optimum liquid layer thickness,  , that lead to
optimum specific throughput,
*
N  , and the appropriate
molar flow rate ratio, n q for absorption process. Drawing
the design envelope for pressure difference as a function of
channel height was the best way of selecting the appropriate
channel height, h , and also study the effect of using
different values of spiral angle, R sin . This later allow
of selecting the suitable value of the distance between
channel revolutions, t . Finally, this work presents the
effect of using wide range of solute values, f ' on the
pressure difference, phases flow rates, and the rotation rate
for fixed design parameters of a research prototype.