paraffin wax deposition and fouling

— 51
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insulatcd by
bruglass and zuDijarted on a frame about 1 .35m from
the ground, outside the buIlding.
The rest of the aoaratus was
inside the building. The holding tank was fitted with a level
indicator.
The steam coil in the tank was a 0.5 inch stainless steel
pine about m iOfl”. The steam coil was connected to a 50 psi.g.
steam main anc. contro.Jed wath a solenoid steam vad.ve actlvatea Dj
a tei: era;ure co:trolier using a thermastor oLacee tn tao tank.
The
condensate was returned to the condensate mains.
The pirework from the holding tank to the pump was 2 inches
correr riPe, wn_e tne rest of the pirewor: was
. ncn copper
:e.
Ccmtress1on fattings and gate valves were used.
The circuation r
eworz anc. sceamllnes outsase tan otia—
ing were lagged with rockwool and water—proofed with roofing felt.
The circulation pinework inside and outside the building was steam
traced with a 0.3125 inch correr pipe.
The c:rcua:ion pumu was a boruar on—Sacroon C—Ci2
centrifugal pump with a stainless steel impeller. The uap :as
driver, by a 75 h.p. 4157 3
ohase electrical motor.
4.3.3 The Test Sections
The
test sectior.s were ten water cooled tubes mounted
vertically between horizontal delivery and discharge manifolds.
ae acne o flow zr. one test sectzons WaS counter currant.
_ne test sections were mane o: 0 zncn copper rae, zasane
diameter 15.1 mm and. outside diameter 15.00 mm. The test se:icns
consisted of a 72 mm
etry length, followed by a water jacae;ei
section 914 mm ong. The water jacket was mane 0f 0.75 inch cctuer
:ipe.
• The coolhr water came directly from the mains and was
discharged to the grains.