This research to design a smaller and easy to operate meatball maker machine. This design will simplify, speed up and minimize the energy expended in the meatball maker machine. Simulation of frame strength using Solidwork 2018. The simulation value of von Mises stress on the frame is with a maximum stress of 10,550,430.00 N/m2 and a minimum of 90,629 N/m2 with a yield strength of 250,000,000.00 N/m2. Displacement in the simulation of displacement is with a maximum value of 0.154 mm and a minimum of 0.000 mm. The value of the safety factor from the simulation results is 24. Static simulation results of the strength of the meatball printing machine frame using ASTM A36 Steel L 30 mm x 30 mm 3 mm thick with a load of 25 kg, the frame is able to withstand engine performance during operation.
Compost has some advantages, improving soil physical properties, chemical properties, and biological properties. It happens because its characteristics contain nutrients in varying types and amounts depending on the original material, provide nutrients slowly (slow release) and in limited quantities, and have the main function of improving soil fertility and health. The pile of organic waste from the Koto Baru market directly impacts the environment to their community. This Community Service Program aims to increase the knowledge and skills of target communities about processing vegetable waste from the Koto Baru market into the solid and liquid-friendly environment of organic fertilizers. The target people of this activity were PKK Jorong Subarang Nagari Koto Baru women in particular and people who wrote Jorong Subarang Nagari Koto Baru. The methods used in this service were socialization of the processing of vegetable waste from the Koto Baru market into the solid and liquid-solid and liquid friendly environment of organic fertilizers, distribution of practical manuals for assembling tools for making solid and liquid organic fertilizer from vegetable waste, distributing initial questionnaires to online socialization. This activity had positive impacts on these PKK women, including providing knowledge of PKK women about the use of organic vegetable waste from the Koto Baru market to become a POP friendly environment and POC, the dissemination of information on the use of vegetable waste from the Koto Baru market became a solid and liquid friendly environmental of organic fertilizer in Jorong Subarang Nagari Koto Baru, Tanah Datar Regency.
The Batang Agam Hydroelectric Power Plant is the oldest Hydroelectric Power Plant in West Sumatera, which is located in the district of Lima Puluh Kota. The Hydroelectric Power Plant started operating in 1976 with a Nett power is 10.5 MW. In its operation so far the turbine of the Batang Agam Hydroelectric Power Plant decrease in the performance compared to the initial commissioning. The impact of decreasing turbine efficiency of Batang Agam Hydroelectric Power Plant lead use of water to convert its energy electricity be wasteful. Therefore it is necessary to research so that the turbine can effectively use the river water that has been dammed in the Kolam Tando more efficient. From the results of analysis obtained the conclusion that the efficiency of the turbine Batang Agam Hydroelectric Power Plant at 3.5 MW from the highest to the lowest; Unit 1 with 86.7% efficiency, Unit 3 with 83.9% efficiency and Unit 2 with 79.2% efficiency. Compared with commissioning data unit-units in the turbine of Batang Agam Hydroelectric Power Plant has decreased efficiency of the amount; Unit 1 of 0.32%, Unit 2 of 7.80% and Unit 3 is 3.05%.
Vibration due to misalignment in the hydraulic pump is detected as the main problem of damage to the pump. Resolved a problem with the alignment of the pump, shaft alignment as an action in overcoming the problem. Vibration measurements are carried out during alignment and misalignment conditions by using a vibration measuring instrument, namely vibration analysis fluke 810. Voltage, current, electrical power, motor & pump rotation, and other operating parameters are observed. Vibration analysis is done by observing the velocity and frequency of the wave signal for alignment and misalignment conditions. Vibration analysis is performed using a comparison method to the ISO 10816-3 tester standard. Finally obtained an ideal vibration in the operation of hydraulic pumps based on the above standards.The method used to analyze using the tool RCFA (root cause failure analysis) which is an investigation process to determine the main causes of a failure mode. From the analysis, we concluded that the formulation RCFA rise broken of coupling.
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