—PLN as State-Owned Company of Indonesia has
10.000 MW fast track projects of Coal Fired Power Plant
(CFPP) which is designed for using Medium Rank Coal (MRC).
PLN has not got MRC due to government policy of trading of
coal. While Indonesia has a lot of Low Rank Coal (LRC)
reserves nowadays. Ombilin CFPP 2X100 MW has used rotary
drum dryer to increase High Heating Value (HHV) of LRC by
reducing total moisture of water in coal. Rotary drum dryer
uses flue gas from its furnace as heat source. Rotating test in
various speeds is used to know the characteristic product (fixed
carbon, total moisture, and HHV) of rotary drum dryer at
Ombilin CFPP. The temperature of flue gas (heat source), the
type of coal input, and the other operation parameters are
maintained approximately constant when speed is adjusted.
—High heating value, rotary drum dryer,
rotating speed, total moisture.
The Authors are with PLN Indonesia, Indonesia (e-mail:
Cite: Mujammil Asdhiyoga Rahmanta and Muhammad Iqbal Felani, "Application of Rotary Drum Dryer at Ombilin Coal Fired Power Plant," International Journal of Materials, Mechanics and Manufacturing vol. 3, no. 3, pp. 183-186, 2015.