PERFORMANCE ANALYSIS OF BIO-BRIQUETTING MACHINE WITH SCREW EXTRUDER TYPE BASED ON QUALITY OF BIO-BRIQUETTES

he purpose of this study is to design a bio-briquetting machine with screw extruder type to convert biomass into higher density based on quality standard of charcoal briquette SNI 01-6235-2000 and SNI 19-4791-1998. The machine had production capacity of 30 kg/hour, equipped with the motor of 1 HP which transmitted to the machine through pulley and belt, and also has cutter which rotates continuously. The raw materials of the bio-briquette were using bagasse and coconut shells. There are 6 parameters that are used to test the quality of bio-briquette such as calorific value, inherent moisture, ash content, dependability pressure, volatile matter content, and fixed carbon content. The bio-briquette was made from the raw materials using amylum adhesives with ratio 30:70:30. With feed as 5 kg, the machine produced 50 pieces of bio-briquette. The machine could produce good bio-briquettes such as calorific value of 6,511.3 cal/g, inherent moisture of 1.97%, ash content of 5.88%, volatile matter of 27.71%, fixed carbon content of 64.99% and compressive strength was 16.98 kg/cm2.The purpose of this study is to design a bio-briquetting machine with screw extruder type to convert biomass into higher density based on quality standard of charcoal briquette SNI 01-6235-2000 and SNI 19-4791-1998. The machine had production capacity of 30 kg/hour, equipped with the motor of 1 HP which transmitted to the machine through pulley and belt, and also has cutter which rotates continuously. The raw materials of the bio-briquette were using bagasse and coconut shells. There are 6 parameters that are used to test the quality of bio-briquette such as calorific value, inherent moisture, ash content, dependability pressure, volatile matter content, and fixed carbon content. The bio-briquette was made from the raw materials using amylum adhesives with ratio 30:70:30. With feed as 5 kg, the machine produced 50 pieces of bio-briquette. The machine could produce good bio-briquettes such as calorific value of 6,511.3 cal/g, inherent moisture of 1.97%, ash content of 5.88%, volatile matter of 27.71%, fixed carbon content of 64.99% and compressive strength was 16.98 kg/cm2

English

The sorting system is usually used as a load handling system in the industrial applications in order to increase the production rate, reduce human error, and increase the efficiency. There are two types of sorting system applied in the industrial applications such as manual sorting system and automatic sorting system. This project presents the design and implementation of PLC based automatic sorting system in mini scale size. The system consists of a conveyor, limit switch, double acting cylinder, and Programmable Logic Controller. Omron PLC CPM2A was used to control the system based on the height of the box. The resulting box sorting system was capable to separate the height of 4 cm block and the height of 1 cm block into their respective location

Design of Mini Horizontal Wind Turbine for Low Wind Speed Area

Demand for energy continues to increase lately due to the increase in the number of people in the world. The technology of wind turbine is currently under development, especially for a low wind speed characteristic. This study was research which was conducted to determine the output of voltage and current produced by the designed wind turbine. The direct current motor was used and worked as a generator of the wind turbine. Data collection of the outputs produced were obtained by the direct analysis using a fan. It was found out that the designed wind turbine could rotate with a low wind speed started from the wind speed of 1.5 – 2.4 m/s. Based on results, it concluded that the designed wind turbine had a potential to be converted into electrical power at a low wind speed area with the cut-in speed of 1.5 m/s