TY - GEN
T1 - Experimental and numerical study of coal swirl fluidized bed drying on different angle of guide vane
AU - Prabowo,
AU - Ichsani, Djatmiko
AU - Widodo, Wawan Aries
AU - Simanjuntak, Melvin Emil
N1 - Publisher Copyright:
© 2018 Author(s).
PY - 2018/7/13
Y1 - 2018/7/13
N2 - Currently, most of the steam power plant in Indonesia uses low-rank coal to feed into boiler even though its designs use high low-rank coal. This will be decreasing the performance and reliability due to all of the pulverizer must be operated. Swirl fluidized bed drying is one of the methods to upgrade the calorific value and the coal particle is fluidized by swirl flow and moisture will be reduced. The experimental method is performed using a set of swirl fluidized bed drying apparatus that using 30 guide vanes. The vanes have an angle of the guide of 10°, 20°and 30°to create a swirl flow and would fluidized coal particle in the chamber. At the inlet and outlet chamber installed a thermometer and relative humidity meter and connect to a computer to record data. The air dryer has a temperature of 55°C, relative humidity of 10.5% and flow rate of 0.06 kg /s. The coal samples were taken periodically as much as ± 2 gram and dried by using ASTM D-5142 method to measure moisture content. The numerical method is performed by using CFD software based on finite volume with the 3-dimensional model, discrete phase, multi-componentand transient. This research is aimed to obtain drying characteristics such as moisture content and drying rate both experimentally in terms of particle sideand air dryer side or numerically. It is also intended to obtain some parameter that cannot be seen experimentally such as air dryer pathline, the contour of moisture, temperature and particle position in the chamber. This study shows that guide vane with the angle of 10° will produce faster drying compared to guide vane with angle 20°and 30°. The result of numerically andexperimentally also gives a good agreement.
AB - Currently, most of the steam power plant in Indonesia uses low-rank coal to feed into boiler even though its designs use high low-rank coal. This will be decreasing the performance and reliability due to all of the pulverizer must be operated. Swirl fluidized bed drying is one of the methods to upgrade the calorific value and the coal particle is fluidized by swirl flow and moisture will be reduced. The experimental method is performed using a set of swirl fluidized bed drying apparatus that using 30 guide vanes. The vanes have an angle of the guide of 10°, 20°and 30°to create a swirl flow and would fluidized coal particle in the chamber. At the inlet and outlet chamber installed a thermometer and relative humidity meter and connect to a computer to record data. The air dryer has a temperature of 55°C, relative humidity of 10.5% and flow rate of 0.06 kg /s. The coal samples were taken periodically as much as ± 2 gram and dried by using ASTM D-5142 method to measure moisture content. The numerical method is performed by using CFD software based on finite volume with the 3-dimensional model, discrete phase, multi-componentand transient. This research is aimed to obtain drying characteristics such as moisture content and drying rate both experimentally in terms of particle sideand air dryer side or numerically. It is also intended to obtain some parameter that cannot be seen experimentally such as air dryer pathline, the contour of moisture, temperature and particle position in the chamber. This study shows that guide vane with the angle of 10° will produce faster drying compared to guide vane with angle 20°and 30°. The result of numerically andexperimentally also gives a good agreement.
UR - http://www.scopus.com/inward/record.url?scp=85050475356&partnerID=8YFLogxK
U2 - 10.1063/1.5046217
DO - 10.1063/1.5046217
M3 - Conference contribution
AN - SCOPUS:85050475356
T3 - AIP Conference Proceedings
BT - Disruptive Innovation in Mechanical Engineering for Industry Competitiveness
A2 - Djanali, Vivien S.
A2 - Suwarno, null
A2 - Pramujati, Bambang
A2 - Yartys, Volodymyr A.
PB - American Institute of Physics Inc.
T2 - 3rd International Conference on Mechanical Engineering, ICOME 2017
Y2 - 5 October 2017 through 6 October 2017
ER -