The process of metal powder deposition process deposition electrolysis. Produciion tools to produce copper powder consist of a power supply Circuit with varied value of 5 volt s, 10 volt s and 15 volt s. This thesis will discuss the malang of copper powder by electrolysis with elektro refming method, because this method canproduce fine grainpowder with highpurity, 99.97% ~ 99.99% copper. Stages…
This paper presents exergy and energy analysis of steam power plant system at PT. Tanjung Enim Lestari Pulp and Paper (PT.Telpp) that aims to improve performance by analyze the components and the overall system. Energy analysis is able to know location, type and losses that occur during the process. Energy rate, exergy, energy and exergy efficiency and irreversibility is calculated based on the…
Humanoid robots are one type of robot being developed currently that has the ability to imitate humans, and one of them is the ability to avoid objects when moving so that they can walk properly without hitting anything. So, an obstacle avoidance system for humanoid robots is needed. Therefore, in this research an obstacle avoidance system was developed which was carried out on a prototype. In …
The grounding system is one of the systems that protects humans and electrical equipment by conducting excess current to the ground, therefore the quality of the grounding system depends on the resistance of the soil. In this study, efforts were made to reduce soil resistance by using additives in the form of gypsum and coconut shell charcoal, using the 3-point method. In this research, the moi…
This study aims to analyze the innovation of electricity bill payment services through the PLN Mobile application at PT PLN Main Distribution Unit for South Sumatra, Jambi, Bengkulu Region (UID S2JB). Using a qualitative approach, this study explores user experience. The theory of service innovation according to Rogers (2003) is used as an analytical framework to understand the process of innov…
Analisis investasi adalah analisis yang berperan dalam menentukan kelayakan proyek untuk dijalankan. Hasil penelitian ini adalah analisis finansial dengan kriteria investasi berupa; debt ser\’ice cobveroge ratio (DSCR), profitabilitas indeks (PI), payback periocl (PP), net present vaJue (NPV), discountedpaybackperiod (DPP), internal rate of retum (IRR), dan NPV simulasi. Dari nilai ECF (equit…
Abstract Aluminum is a shiny silvery-white metal with high electrical conductivity. One type of aluminum commonly used in aircraft is AA6061. This research investigates the effect of T6 heat treatment on the fatigue resistance of 6061 aluminum alloy material. The heat treatment process involves solution heat treatment at 530°C for 2 hours, followed by rapid cooling using water, and artificial …
Energi air dapat dimanfaatkan sebagai pembangkit listrik dengan memanfaatkan tenaga potensial air yang tersedia. Pembangkit Listrik Tenaga Air (PLTA) adalah salah satu teknologi yang sudah terbukti tidak merusak lingkungan, menunjang diversifikasi energi sebagai pemanfaatan energi terbarukan, menunjang program pengurangan penggunaan BBM, dan sebagian besar konstruksinya menggunakan kandungan lo…
This study aims to analyze the effect of load variation on the temperature of a three-phase induction motor operating in generator mode. Load variation is a critical factor as it affects power output and causes temperature changes in the motor. In this study, temperature measurements were conducted at various load levels, from 0 to 1000 watts, to observe the temperature rise with increasing loa…
Electrolyte variations used in LiSnO2/LiFePO4 battery are LiCl and NaNO3 with 2 types of solvents namely H2O and DMSO. This research aims to analyze the results of characterization of LiSnO2/LiFePO4 electrodes and the effect of electrolytes and solvents on the performance of lithium ion battery with LiSnO2/LiFePO4 electrodes. The results of electrode characterization using SEM show that LiSnO2 …
Autonomous vehicle is a technology that uses a self-driving system. Self-driving is a type of autonomous car control that functions to make it easier for humans to drive automatically without driver intervention. One of the important things in a self-driving system is the movement of the car. One of the movements of a self-driving car is automatic reverse movement. In this research, the automat…
Penelitian ini bertujuan untuk menjelaskan persentase dan bentuk miskonsepsi pengetahuan awal (prior knowledge) siswa pada materi rangkaian listrik sederhana menggunakan tes diagnostik four-tier. Deskripsi yang dijelaskan tediri dari memprediksi nyala bola lampu, memprediksi besar arus pada bola lampu dan memprediksi nyala kecerahan bola lampu. Penelitian ini menggunakan metode penelitian deskr…
An inverter is an electronic device used to convert DC current into AC current. Inverters have various types according to the type of phase, control wave and generating capacity. Inverters play a very important role as the main supporting component in solar power plants, therefore selecting a good inverter is one of the main points in building this plant. In this plant there are 8 inverters whi…
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