This study aims to realize the manufacturing of a prototype design of a pico-hydro power plant, which is expected to be a science of study and a reference for students at the University of Singaperbangsa Karawang in particular and Indonesian students in general, as well as monitoring the performance test of the prototype of pico-hydro power plant that is used as an electricity needs for lighting. The design and manufacture of this prototype require several supporting components: a). Pressure gauge; b). Pelton type turbines; c). Tacho Meter; d). Single-phase Ac generator; e). Avometer; f). Energy saving LED lamp. Pico-hydro power plant prototype testing is carried out by measuring the voltage generated by the generator, tested at no load and given a load using variations of 55%, 70%, 85%, 100% valve openings. Based on the results of the performance test, the pico-hydro power plant can work well. That matter can be seen from the largest flow valve opening which results in a high water flow rate, so that it can rotate the turbine quickly. The flow rate greatly affects the generator rotation. No-load test results, the largest voltage of 90 volts is obtained when using 100% valve opening, with the output producing an air flow of 0.0017 m3 / s, rotation (N1) 136 rpm, rotation (N2) 979 rpm. The results with the load, the largest voltage of 60 volts is obtained when using 100% valve openings, with the output producing rotation (N1) 133 rpm, rotation (N2) 957 rpm, and current 0.13 A when supplying the 4 LED lamps type of 3 watts with litting up brightly.
The rapid development of the manufacturing industry requires companies to always produce high quality and fully functional products. However, when the production process does not always run, there should be problems encountered, such as the machine factor which often breaks down and even shuts down completely, causing production disruption. One of the important factors in the successful implementation of Failure Mode Effect Analysis (FMEA) is to interpret before, the process takes place and not after it occurs. To support the implementation of Failure Mode Effect Analysis in the field of maintenance, an effort is needed to improve the state of the equipment. So, in this study, this method will be applied to the maintenance of the Gemini Ficep G25 CNC machine. The result can be assumed to be the primary problem in damage. The trouble that must be prioritized first are the plasma doesn’t run, the force on the engine drive does not move, the dust collector does not work and the internal and external coolants water don’t come out.
An industrial company that specializes in plastics, with the basic ingredients of PolyEthylene Terephthalate, PolyPropylene, and Hight Impact Polystyrene, the product is a plastic plate that is produced through the operation of the Extruder machine. Total Productive Maintenance (TPM) is one method of analyzing a machine and will help research the effectiveness of a machine with the help of other methods such as Overall Equipment Effectiveness (OEE) and Failure Mode and Effect Analysis (FMEA). Based on the quantitative analysis of the OEE calculation, the OEE value of the Extruder 1 GW-350 machine is obtained with an average calculation of 79.35%. Based on qualitative analysis using FMEA, the RPN failure mode score on the Extruder 1 GW-350 engine was obtained. The highest RPN value is the printer is unstable (die) at 240.
A B S T R A KMesin pendingin atau refrigator sangat dibutuhkan guna membuat makanan dan kebutuhan rumah tangga lainnya agar tetap segar dan awet dengan cara menukar atau membuang panas pada makanan tersebut. Tujuan dari penelitian ini yaitu merancang sebuah alat pemanas air dengan memanfaatkan panas dari kondensor mesin refrigator ½ PK sebagai keuntungan tabahan. Perancangan dimulai dengan identifikasi permasalahan, menghitung kebutuhan panas, menentukan dimensi dan juga komponen utama pemanas air. Berdasarkan hasil analisa dimana dimensi tube sebesar diameter 8 mm, tebal 2 mm dengan panjang sebesar 0,5 meter dan tangki berkapasitas 20 liter, didapatkan bahwa refrigator ½ PK dengan freon yang keluar sebesar 65˚C hanya mampu memanaskan air sebanyak 3 Kg dari temperatur 28˚ menjadi 60˚ dalam waktu 59 menit, dengan beban panas sebesar 130,74 Watt dan hasil yang dicapai dari CFD menunjukan panas yang masuk pada tube sebesar 65˚C akan berkurang setelah mencapai 1/3 dari panjang tube.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.