Analysis of Gasification Stove on Rice Husk Using Variation of Primary Air Speed 6m/s, 8m/s, 10m/s

updraft gasification stove method is one source of human life one of the utilization of biomass energy to reduce air emissions. The variation of primary air is one of improvisation of cooker cooking design of gasification updraft method used in the stove in this research. The purpose of this study was to describe flame temperature, effective flame time, and calculate the thermal efficiency of updraft gasification stove with different variations of primary air. The test is carried out by taking flame temperature data and boiling temperature of water every 30 seconds on the variation of primary air flow velocity (6 m/s, 8 m/s, 10 m/s). The total operating time is recorded on each test. The results of this study indicate that the highest average flame temperatures are obtained on the primary airflow velocity variation of 6 m/s. The best thermal efficiency is obtained on testing the primary airflow velocity variation of 10 m/s.