Experimental measurements on the longitudinal dispersion of flowing water in coiled tubes were made using NaCi as tracer and conductivity measurement techniques. The 171 runs were made in coiled and straight 1/8", 1/4" and 1/2" I.D. polyethylene tubes from 25 to 300 ft. in length with coiling ratio, r/R[subscript c]...
The atmospheric fluidized bed combustor (AFBC) is an alternative to
the pulverized coal burner. The size of a utility scale AFBC would be
enormous so that the use of large particles is necessary to reduce its
size. In modeling the combustion of coal and capture of sulfur released
from the...
Two problems relating to the processing of solid streams are
treated in two sections.
The first section is the study of heat transfer between an
immersed cylinder and a moving bed of solids: An instrumented heated
cylinder was placed in the flow stream of a moving bed of solids with...
Two new experimental techniques are presented which enable the
direct measurement of heat transfer coefficients in fine particle
gas fluidized beds.
The first technique uses fine electrically heated Alumel wires
to probe fluidized beds of fine particles. The wires varied in
diameter from 50.8 to 813μm while the bed material...
This thesis consists of two parts. Part I (Chapters 1,
2, 3) of this thesis concerns finding the best way of
running a reactor whose catalyst decays with use, and must
consequently be replaced or regenerated at regular
intervals. Chapter 1 introduces the problem, and Chapter 2
develops a one...