PENGARUH LAJU ALIR UDARA DAN TIPE ALIRAN UDARA TERHADAP KINERJA KOMPOR GASIFIKASI TONGKOL JAGUNG

Wusana Agung Wibowo, Heru Marantika Afriyadi, nanang Driyatmono

Abstract

Central Java (a province in Indonesia) produced about 2.2 million tons of corn kernel in 2007. Cob corn had low efficiency if only burned away. We used gasification processes to improve the efficiency. Gasification consists of four processes, i.e.: drying, pyrolysis, oxidation and reduction. Gas wich produced from the gasification process, are CO, CO2, H2, and CH4. Based on the direction of the flow of gas and the flow of solid, gasification machines can be divided into two gasification (downdraft gasification) and gasification opposite flow (updraft gasification). Gasification can be affected by several variables. This study used two variables: the air flow rate (273 cm3 / s; 345 cm3 / s; 412 cm3 / s and 599 cm3 / s) and the type of air flow (up draft and downdraft). The parameters in the gasification is combustible gas, SGR (Specific Gasification Rate), FCR (Fuel Consumption Rate), AFR (Air Fuel Ratio) and Percentage of Char (charcoal). Combustible gas composition (CO, H2, and CH4) as indicator of producer gas composition. Combustible gas composition of the greatest value obtained on the type of flow up to the draft air flow rate 345 cm3 / s which is 17.742% mol (SGR 75.0761 kg/m2.jam; FCR 1.1551 kg / hour; AFR 1.3448; percentage of char 2,5%).

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DOI: https://doi.org/10.20961/ekuilibrium.v13i1.24852

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