This research study aims to test the efficiency of the biomass stove is small. The principles used in the gasifier. The fan housing to help maximize the performance of the heating system. Hob testing with a diameter of 10 centimeters is equal to the combustion chamber of the combustion chamber is 12 cm and the centrifugal fan (Blower) helps to burn. By fans using test will have three sizes: 3 v 6-volt and 9 volt with a wind speed of 7.17 meters per second, 10.05 meters per second and 12.94 meters per second, respectively, and tested at three times. How to Boil water (WBT) using bamboo sticks that are about 1 cm long, 11 cm for fuel. In each of the test weight 0.300 kg fuel efficiency of biomass stoves using centrifugal fans. At various wind speeds By centrifugal fan will start from the combustion process at ambient temperature. Until the completion of the combustion process, reducing the water temperature to normal ambient temperature. As a result, the efficiency of the stove to boil water, biomass, small. Found that the wind speed was 7.17 meters per second per second, 10.05 meters and 12.94 meters per second. Efficiency of 15.44%, 13.38% and 11.47%, respectively, which are able to make water boil at a time of 14 minutes, 11 minutes and nine minutes respectively from the experimental results have shown that the efficiency of the gas, biomass, small. Using centrifugal fan performance is inversely proportional to the heat that can boil water and use an electric fan size 3 Volt with a wind speed of 7.17 meters per second. Will be most effective and have the ability to make a slow boil the water.
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