Abstract:
The effect of coal grains with the size of 120 mesh and 53 mesh on physical parameters
of elasticity using experimental method has been carried out. The samples used in this
experiment were taken from three different locations namely Batu Ampar (Indragiri
Hilir Regency), Desa Pangkalan (Kuantan Singingi Regency) and Sawah Lunto
Regency. Based on the experimental results, it has been found that the biggest value of
elasticity of homogeneous coal with the size of 120 and 53 mesh are 4.26x10 9 N/m2
and 1.97x10 9 N/m2 respectively. While the biggest value of elasticity of heterogeneous
coal with the size of 120+53 mesh and 53 +120 mesh are 3.82 x109 N/m2 and 2.41x109
N/m2 respectively which originated from Sawah Lunto Regency. The smallest value of
elasticity of homogeneous coal with the size of 120 and 53 mesh are 3.98x10 9 N/m2
and 1.71x10 9 N/m2 respectively. While the smallest value of elasticity of heterogeneous
coal with the size of 120+53 mesh and 53 +120 mesh are 3.49 x109 N/m2 and 2.13x109
N/m2 respectively which originated from Batu Ampar Regency. The highest increase
of water temperature due to homogeneous coal with the size of 120 and 53 mesh are
30 oC and 20 oC respectively. The highest increase of water temperature due to
inhomogeneous coal with the size of 120 + 53 mesh and 53 +120 mesh are 26 oC and
23 oC respectively which originated from Sawah Lunto Regency. The lowest increase
of water temperature due to homogeneous coal with the size of 120 and 53 mesh are
28 oC and 17 oC respectively. The lowest increase of water temperature due to
inhomogeneous coal with the size of 120 + 53 mesh and 53 +120 mesh are 24 oC and
21 oC respectively which originated from Batu Ampar Regency.
