TY  - JOUR
T1  - The Influence of Pores Size and Type of Aggregate on Liquid Mass Transfer in Porous Media
AU - Ismail, Nova R. AU - Sudjito, S. AU - Widhiyanuriyawan, Denny AU - Wijayanti, Widya 
JO  - Journal of Engineering and Applied Sciences
VL  - 13
IS  - 17
SP  - 7171
EP  - 7178
PY  - 2018
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2018.7171.7178
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2018.7171.7178
KW  - Porous media
KW  -mass transfer
KW  -capillary flow
KW  -aggregate
KW  -natural stone
KW  -characteristics
AB  - This research aims to investigate the capillary transport properties of concretes and natural stones
as to be used as an absorber plate material of solar distillation equipment. Macro scale photograph and porosity
test has been doneto determine the characteristics ofthe porous medias. In order to analyze the transport
properties, a sorptivity test was done in this study. Two different types of concrete was filled with Lumajang’s
sands and ferrous sands as the fine aggregates. Both types of concrete were then divided with two different
particle size which were 0.125 and 0.250 mm in diameter, respectively. A natural stone was used as a comparison
materials. The results taken from macro scale photographs showed that increasingsize of pore holes with the
larger aggregates particle’s size in both types of aggregates. The highest porosity was found in concrete with
ferrous sand with aggregate size of 0.250 mm specimen with a value of of 57.77%. The highest porosity was
gained in concrete with Lumajang sand with aggregate size of 0.250 mm specimen with the amount of 0.224%.
The largest volume of absorbed seawater and sorptivity coefficient was also obtained in concrete with
Lumajang sand with aggregate size of 0.250 with the value of 8.05 mL and 9.58&times;10<sup>&#150;5</sup> m/sec<sup>0.5</sup>, respectively.
However, concrete with ferrous sand with aggregate size of 0.250 has the highest mass flow rate with
the value of 3.25&times;10<sup>&#150;7</sup> kg/sec. The interconnectivity between the channels also has a significant role in mass
flow rate value which occurred in natural stone specimen.
ER  -