PENGARUH KETEBALAN INNER-HELICAL FIN TERHADAP CHARACTERISTIC OF PERFORMANCE PADA HEAD EXCHANGER
Abstract: Effect of
inner-helical fin on the rate of heat transfer and flow friction factor in a
double pipe heat exchanger (double tube heat exchanger) to make a split and
disrupt the flow pattern of a streamlined flow of the fluid flowing in the pipe
section in the (inner tube) that cause turbulence (molecule-molecule level of
randomness good fluid) that can increase the heat transfer ratein the the pipe
. Inner-helical fin has a varied thickness of 1 mm, 22 mm and 3 mm are mounted
on the pipe where the inside diameter of the inner-helical fin attached to the
wall in the inner pipe. Hot water discharge
on the inner
pipe ditelitil ranging
from 400 to
900 liters /
h with interval increase in 100 liter / hour and the
volumetric flow rate of cold water on the outer tube (outer tube) is
kept constant 900
liters / hour.
The test results
of each inner-helical
fin thickness compared with the
test results without the inner-helical fin (plain tube) and obtained the
overall heat transfer rate has increased 60 to 65% of the plain tube, heat
exchanger effectiveness of 58.56 to 63, 64% and friction factor of 63.13 to
63.51 of the plain tube.
Penulis: Ishak Usman, Slamet
Wahyudi, Bambang Dwi Argo
Kode Jurnal: jptmesindd100179
