| dc.contributor.author | NADJIB, MUHAMMAD | |
| dc.date.accessioned | 2016-09-24T04:52:00Z | |
| dc.date.available | 2016-09-24T04:52:00Z | |
| dc.date.issued | 2012-05 | |
| dc.identifier.citation | http://journal.umy.ac.id/index.php/st/article/view/441 | en_US |
| dc.identifier.issn | 1411-061X | |
| dc.identifier.uri | http://repository.umy.ac.id/handle/123456789/2712 | |
| dc.description.abstract | Generally speaking, baffle installation of a shell-and-tube heat exchanger is in
straight-standing with respect to shell axis. A common problem of this arrangement
is that there will be found a stagnant fluid condition in the death-zone. The impact is
the heat transfer coefficient could not reach an optimum value. Based on baffle
configuration, the death-zone effect can be minimized by installing an un-parallel
tilted baffle. The purpose of this research is to investigate the effect of using non parallel tilted baffle on heat transfer coefficient. The heat exchanger model was made
with single pass fluids. Hot water is going through inside the tube bundles and cold
water pass is in the shell. The baffle was installed in various angle of 0°, 15°, 30°,
and 45° with respect to shell axis. The cold water flow rates were varied from 75
l/hr, 100 l/hr, 125 l/hr, 150 l/hr, 175 l/hr, to 200 l/hr. The hot water flow rate was
fixed at 150 l/hr. Temperature of the hot and cold water at inlet and outlet was
recorded by means of K type thermocouple and data logger. The data was then
analyzed to obtain the convection heat transfer coefficient. The data were also used
to determine the empirical correlation of Nusselt number and Reynolds number. The
results indicate that baffle in angle 0° produce the highest convection heat transfer
coefficient. Installing the baffle at tilted position is not significant in convection heat
transfer coefficient. The empirical correlation of Nusselt number and Reynolds
number is influenced by angle function of the baffle. | en_US |
| dc.publisher | JURNAL ILMIAH SEMESTA TEKNIKA | en_US |
| dc.source | JURNAL ILMIAH SEMESTA TEKNIKA
Vol. 15, No. 1, 35-42, Mei 2012 | |
| dc.subject | heat exchanger, shell and tube, baffle, heat transfer coefficient, Nusselt number | en_US |
| dc.title | PERPINDAHAN KALOR PADA PENUKAR KALOR SELONGSONG DAN PIPA MEMAKAI SEKAT MIRING TIDAK SEJAJAR | en_US |
| dc.type | Article | en_US |
