SIMULASI PENGARUH KECEPATAN UDARA FLUIDISASI TERHADAP VOLUME FRACTION PADA GASIFIKASI DUAL REAKTOR FLUIDIZED BED MENGGUNAKAN SOFTWARE CPFD BARRACUDA VIRTUAL REAKTOR

Abstrak

Abstract
Gasification issthe process offconverting soliddor liquid feedstockkinto useful gaseoussfuel orrchemical
feedstock thattcan easily beeburned toorelease energyyor used forrthe production of value-addeddchemicals.
Gasificationnrequires a gasificationnagent, such as air, oxygen, orrsteam, toorestructure theemolecular
structure of the feedstock and convert it intoouseful gaseous fuellwith a higherr(H/C) ratio. The development
of gasification technology has been extensive, one of which is the dual reactor fluidized bed (DRFB) technology.
This technology utilizes two reactors: the combustion reactor and the gasification reactor. This study aims to
analyze the influence of various air fluidization velocities on the volume fraction in a Dual Reactor Fluidized
Bed (DRFB). The research method employed simulation using CPFD Barracuda Virtual Reactor software. The
design used in this simulation is a dual reactor fluidized bed, with RDF fuel ranging in size from 0.2-0.4 mm.
The material bed used is silica sand with a size range of 0.1-0.2 mm. This study utilized three air velocity
variations: 12 m/s, 13 m/s, and 14 m/s. The research results indicate that as the air velocity increases, the
resulting volume fraction decreases. The 12 m/s velocity variation yields a higher volume fraction value
compared to the 14 m/s velocity.
Keyword: Gasification, Dual Reactor Fluidized Bed, RDF, Simulation, Volume Fraction