Experimental and numerical study of coal swirl fluidized bed drying on different angle of guide vane

Prabowo*, Djatmiko Ichsani, Wawan Aries Widodo, Melvin Emil Simanjuntak

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)


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.

Original languageEnglish
Title of host publicationDisruptive Innovation in Mechanical Engineering for Industry Competitiveness
Subtitle of host publicationProceedings of the 3rd International Conference on Mechanical Engineering, ICOME 2017
EditorsVivien S. Djanali, Suwarno, Bambang Pramujati, Volodymyr A. Yartys
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735416994
Publication statusPublished - 13 Jul 2018
Event3rd International Conference on Mechanical Engineering, ICOME 2017 - Surabaya, Indonesia
Duration: 5 Oct 20176 Oct 2017

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference3rd International Conference on Mechanical Engineering, ICOME 2017


Dive into the research topics of 'Experimental and numerical study of coal swirl fluidized bed drying on different angle of guide vane'. Together they form a unique fingerprint.

Cite this