KARAKTERISTIK HILANG TEKAN ALIRAN UDARA MELALUI TUMPUKAN SERBUK GERGAJI DI FIXED BED REACTOR

Abstract

<p>Abstract : Solid Bed in fixed bed gasifier tends to cause the pressure drop that resulting energy<br />loss. Thus, the main cause needs analysis in order to obtain the operating conditions that<br />minimize energy loss. Pressure drop at the fixed bed gasifier is influenced by the particle<br />diameter, bed porosity and shape factor of the solid particle. This research purposed to analyze<br />influence of air flow rate and depth of sawdust bed in the fixed bed gasifier. The experiments<br />were performed by air flux from the blower. This research analyzed two conditions of the<br />gasifier, empty and filled with the bed of sawdust. Average diameter (D<br />p<br />) of 0,02 cm was<br />selected as constant variable and the independent variables were depth of bed (L) and air<br />superficial velocity (G). The experiments air superficial velocities were in the range of 1,3154 –<br />1,3891 g/cm<br />s and depth of bed at 15 cm, 30 cm, 45 cm. Experimental results showed that the<br />trend of the pressure drop is proportional to the air flow rate and to the depth of sawdust bed.<br />2<br />Keywords: pressure drop, sawdust, gasification</p>