paraffin wax deposition and fouling

L
Run .
(°c)
used to calculate temperature profiles.
numbers. The particulars were as follows:
Prom the 22 runs obtained in the present work, 6 runs were
In section 6.2 data obtained by Walker(1) was used to calculate
6.3 Temperature Profiles Study
temperature profiles in fouling studies heat exchanger tubes. In
- 60 —
Profile given in ppendix 8, ‘igure 8.2.’+, mensoress temperature
where concentration was c = 26 per cent and cloud point Tc = 32°C.
Tw = 34°C. The results are plotted in figures 6.3.1, 6.3.2, 6.3.3,
experimental bulk temperature. Two figures gave a correct profile
same as tie cloud point, gave a pro;ile corresponang to the
this section data obtained in the present fouling studies will be
in two of them the temperature profile with a wall temperature the
6.3.4, 6.3.5 and 6.3.6. From these six figures it was seen that
if the wall temperature was 10C below the cloud point and two
selected, covering two bulk temperatures and a range of Reynolds
the dimensionless distance y to produce the Universal Velocity
figures if it was 1°C above the cloud point.
The wall temperatures selected were Tw = 30°C, Tw = 32°C and
Just as the dimensicr-ess velocity u can be plotted against
B0-13 6716 6.8 42.4
B 6- 9 13311 7.1 42.8
B 1- 5 7635 7.1 42.5
C 8—20 4635 6.7 38.1
c 1—4 8890 6.9 38.2
C 5-16 6888 6.8 38.2
(°c)