FLUKS TERMAL DALAM POROUS MEDIA SAAT MENGKONDENSASI UAP
ABSTRACT: The aim of present
study is to observe behavior of heat fluxes in porous media during it condenses
the extracted-moist from a vapor related to its heat- and mass-transfer. This
study applies two types of porous media which have difference in thermal
conductivity, and it considers various ambient-temperatures. The test is
conducted by streaming a laminar saturated vapor over porous glass-beads and
alumina-balls media inside a duct, where the outside of the duct is treated by
the ambient-temperatures. The vapor with various temperatures is forced
tangentially over the upper-face of the media, whereas temperature of bottom of
the media is kept to be constant. As for treat-I, the ambient temperatures are
maintained at a constant value, hence, temperature ratio of the vapor to the
ambient is non-unity. Furthermore, for treat-II, the ambient temperatures are
increased with increasing the vapor temperatures such as the temperature ratio
of the vapor to the ambient becomes unity. From this study, it can be informed
that the heat fluxes on the porous media play a key role on condensing the
extracted-moist. However, the gradual increase of the condensate inside the
porous media decreases effective thermal conductivity on the bed of alumina
balls and glass beads, and it further generates the un-steady heat transfer of
the condensation.
Penulis: Eko Siswanto
Kode Jurnal: jptmesindd130284
