Comparison of Conventional and Vibration Assisted Fluidized Bed Dryer for Drying High Moisture Sub Bituminous Coal Used In Thermal Power Plants

Niravbhai Prajapati; Jitendra Chauhan; Kamlesh Kothari

doi:10.26706/jtfs.4.1.icramen202312

Comparison of Conventional and Vibration Assisted Fluidized Bed Dryer for Drying High Moisture Sub Bituminous Coal Used In Thermal Power Plants

Niravbhai Prajapati, Jitendra Chauhan, Kamlesh Kothari
Journal of Thermal and Fluid Science
volume 4: Issue 1, Jan-June 2023, pp 24-39

Author's Information

Niravbhai Prajapati¹

Corresponding Author

¹M.Tech Student, Mechanical Engineering, Parul University, Vadodara, Gujarat, India

niravprajapati53@gmail.com

Jitendra Chauhan²

²Assistant Professor, Mechanical Engineering, Parul University, Vadodara, Gujarat, India

Kamlesh Kothari³

³Deputy Manager, Gayatrishakti Paper and Board Limited, Vapi, Gujarat, India

Article -- Peer Reviewed

Published online – 26 June 2023

Open Access article under Creative Commons License

Cite this article – Niravbhai Prajapati, Jitendra Chauhan, Kamlesh Kothari “Comparison of Conventional and Vibration Assisted Fluidized Bed Dryer for Drying High Moisture Sub Bituminous Coal Used In Thermal Power Plants ”, Journal of Thermal and Fluid Science, RAME Publishers, vol. 4, issue 1, pp. 24-39, 2023.

https://doi.org/10.26706/jtfs.4.1.icramen202312

Abstract:-

Low Calorific Value (CV) coal is used in large quantity as compared to High Calorific Value coal in Cogeneration Power Plant (CPP) at Gayatrishakti Paper & Board Limited Unit-1, Vapi. But the moisture content in Low CV coal is very high about 35% - 45% (wet basis) which is not acceptable due to sticky property of coal, hence leads to increase in operation and maintenance costs attributed to handling of wet coal. So drying of coal is necessary to use Low CV. The drying performance of Low CV coal particle in laboratory scale with and without vibration assisted fluidized bed dryer was investigated under various operating condition: Inlet air temperature (60 - 80℃), superficial air velocity (0.14 – 0.43 m/s), bed height ( 20-60 mm), particle size (1-2,2-3,3-5 mm), frequency (110 - 340 Hz). The drying results shows that the moisture content with respect to time decreases with an increase in temperature, air velocity, and vibration frequency, and also increases with an increase in bed height and particle size.

Index Terms:-

Low-rank coal, Fluidized Bed Technology, Coal Drying, Vibration Technology.

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