Variasi Kecepatan Aliran Udara Pada Tungku Gasifikasi Limbah Biomassa Terhadap Nyala Efektif dan Temperatur Pembakaran

Abstract

Gasification is a process of energy conversion at thermo chemical process where is a solid fuel changed into a fuel gas. The process it occur at a device that called gasifer. Gasification process is done by limiting of oxygen (O 2 ) that entering the gasifier. In general, gasification process produce gases such as CH 4 , H 2 and CO as well as other compounds such as H 2 S, CO 2 and Tar. This study aimed to obtain the best of combustion temperature and time flame effective by variation of air flow rate in gasifier and variation of biomass.This research is based on the updraft gasifier. Gas that is produced by gasification proces flows into the burner, where the direction is the same as the flow of air from the blower. Variation of air flow that are produced by air blower are used to supply oxygen in the reactor. Biomass wastes such as pieces of bamboo, rice straw, wood chips, and rice husks are used as raw material for gasification process. All biomass waste is crushed in order to obtain uniform size using 20 mesh.Results from this Research is showed that the best air flow at speed 10 m/s and the best raw material as source of heat at gasification proces is rice husk. This gasification produce the effective flame for as long as 33 minutes and the average of temperature is of 600 o C.