TY - JOUR
T1 - A Pilot Plant Study of Coal Dryer
T2 - Simulation and Experiment
AU - Halim, Abdul
AU - Widyanti, Afninda Aryuni
AU - Wahyudi, Celvin Dicky
AU - Martak, Fahimah
AU - Septiani, Eka Luthfi
N1 - Publisher Copyright:
© 2022, Gadjah Mada University. All rights reserved.
PY - 2022
Y1 - 2022
N2 - High moisture content in low-range coal causes low calorific value. To increase the quality, drying by a coal dryer to minimize moisture content is proposed. Here, a case study of a cyclone-like conical tube coal dryer pilot plant was reported. Drying heating uses combustion heat generated from volatile matter combustion. This approach will solve the two problems simultaneously: decreasing moisture content and volatile matter. The computational fluid dynamic (CFD) approach is used to study fluid dynamics inside the coal dryer using ANSYS Fluent 2020R2 software. The CFD simulation results represent the phenomenon of coal drying inside the coal dryer validated by the pilot plant experimental result. The simulation was carried out in steady and unsteady conditions to understand the drying phenomena. The simulation firmly fits the experimental result, especially in an unsteady state system, indicating that the simulation result is promising for further coal dryer design. The optimal condition produces a high moisture content reduction of 86.37%, uniform fluid distribution, and significant volatile matter combustion.
AB - High moisture content in low-range coal causes low calorific value. To increase the quality, drying by a coal dryer to minimize moisture content is proposed. Here, a case study of a cyclone-like conical tube coal dryer pilot plant was reported. Drying heating uses combustion heat generated from volatile matter combustion. This approach will solve the two problems simultaneously: decreasing moisture content and volatile matter. The computational fluid dynamic (CFD) approach is used to study fluid dynamics inside the coal dryer using ANSYS Fluent 2020R2 software. The CFD simulation results represent the phenomenon of coal drying inside the coal dryer validated by the pilot plant experimental result. The simulation was carried out in steady and unsteady conditions to understand the drying phenomena. The simulation firmly fits the experimental result, especially in an unsteady state system, indicating that the simulation result is promising for further coal dryer design. The optimal condition produces a high moisture content reduction of 86.37%, uniform fluid distribution, and significant volatile matter combustion.
KW - CFD Simulation
KW - Case Study
KW - Coal Upgrading
KW - Coal dryer
KW - Unsteady state
UR - http://www.scopus.com/inward/record.url?scp=85133655569&partnerID=8YFLogxK
U2 - 10.22146/ajche.68745
DO - 10.22146/ajche.68745
M3 - Article
AN - SCOPUS:85133655569
SN - 1655-4418
VL - 22
SP - 124
EP - 140
JO - ASEAN Journal of Chemical Engineering
JF - ASEAN Journal of Chemical Engineering
IS - 1
ER -