Farmer groups in Baros District, Serang Regency face a problem where a rice husk waste has accumulated and there has been no effort to process it into economic value products. One solution is to use rice husk waste into briquettes. Rice husk briquettes are obtained by burning dry biomass with a little air (carbonization). The method of implementing the activities carried out was by extension and demonstration of making briquettes. This activity was able to increase the knowledge and skills of the management and members of the Baros independent farmer group in the use of rice husks as an alternative energy source in the form of briquettes.
<p>Wind is an alternative energy that is environmentally friendly and sustainable. Therefore, we need a type of wind turbine that can receive wind from all directions. The crossflow type vertical axis wind turbine has a high torque coefficient at a low tip speed ratio. The purpose of this study was to determine the effect of the number of blades on the performance of the vertical axis crossflow wind turbine. The experimental test was carried out by varying the number of blades. The configuration is analyzed using the experimental wind tunnel test scheme which has been modified in the section test section. The results showed that the number of blades 16 has a power coefficient ( ) = 0.23 tip speed ratio (TSR) = 0.42 at a wind speed of 4 m / s.</p><p><strong><br /></strong></p>
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