Article Per Year (5 Year)
p-Index From 2021 - 2026
0.947
P-Index
This Author published in this journals
All Journal AUSTENIT Jurnal Gantang Machine : Jurnal Teknik Mesin MACHINERY: Jurnal Teknologi Terapan Jurnal Multidisiplin West Science
Utami, Ogi Meita
Unknown Affiliation
Automotive Engineering Control & Systems Engineering Economics, Econometrics & Finance Education Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
Analisis Umur Pakai Oli Pada Fan PLTU Tanjung Enim 3x10 MW Vernando, Deby; Hendradinata , Hendradinata; Putri, Fenoria; Utami, Ogi Meita; Medi, Ali
MACHINERY Jurnal Teknologi Terapan Vol. 6 No. 1 (2025): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.14942716

Abstract

One of the boiler auxiliaries for the running of the production process is the fan. The fan acts as a primary and secondary air supply and as a vacuum cleaner for the remaining ash when the boiler burns and is discharged into the atmosphere. In this fan often occurs over heat (over heat) one of the causes is the decline in oil quality. Lack of attention to the lubrication system if allowed to continue will experience over heat in the fan which will cause damage to the fan, especially the bearing due to the decrease in oil viscosity caused by operating hours and temperatures that affect the oil in the fan. The data obtained will be processed and analyzed with a Quantitative to see the effect of running hours and temperature on the kinematic viscosity of oil samples. From this study with a test of 40 ° C obtained results at 0 hours (92.88 cSt), 1923 hours (57.94 cSt), 2012 hours (53.26 cSt), 2195 hours (46.82 cSt), 2202 hours (44.75 cSt), 2207 hours (43.26 cSt). From the results of this study, running hours greatly affect the kinematic viscosity value and temperature treatment of oil affects the kinematic viscosity along with the increase in running hours
Rancang Bangun Alat Amplas 2 in 1 untuk Industri Kayu Skala Kecil Setiawan, Edo; Effendi, Sairul; Utami, Ogi Meita
Jurnal Multidisiplin West Science Vol 4 No 07 (2025): Jurnal Multidisiplin West Science
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/jmws.v4i07.2491

Abstract

Penelitian ini bertujuan merancang dan membangun prototipe alat amplas 2 in 1 dengan pendekatan Research and Development berbasis Design Thinking guna meningkatkan efisiensi, kualitas, dan ergonomis dalam proses finishing kayu pada industri skala kecil. Proses pengembangan dilakukan melalui lima tahap: empathize, define, ideate, prototype, dan test, dengan melibatkan pengrajin kayu dan mahasiswa teknik mesin sebagai pengguna. Hasil pengujian menunjukkan bahwa prototipe mampu mempercepat waktu pengerjaan hingga 35% dibanding metode manual, menghasilkan kualitas permukaan lebih halus (Ra 1.1–1.3 μm), serta konsumsi energi yang relatif hemat (0.40–0.45 kWh per m²). Skor kenyamanan pengguna juga meningkat (4.3–4.5 pada skala 5). Temuan ini menunjukkan bahwa alat amplas 2 in 1 layak diterapkan sebagai solusi teknologi tepat guna bagi UMKM kayu sekaligus media pembelajaran di pendidikan vokasi.
STUDI PERFORMASI SUDU TURBIN ANGIN SAVONIUS TIPE VERTICAL AXIS BERBAHAN KOMPOSIT Homzah, Ozkar F.; Sundari, Ella; Sampurno, Rachmat Dwi; Utami, Ogi Meita; Rahmawati, Lily
Machine : Jurnal Teknik Mesin Vol 9 No 1 (2023): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v9i1.3317

Abstract

The increasing human population, the use of fossil energy such as oil also increases. While fossil energy is one of the largest contributors to carbon emissions that can cause climate change that can be done to control climate change is to switch to the use of renewable energy. The investigation takes the shape of a vertical axis Savonius turbine blade design. The blades are made of a composite material called carbon fiber, and the number of blades varies between 4, 6, and 8 pieces. The study's findings were tested utilizing a blower-generated wind source with wind speeds of 4m/s, 4.5m/s, and 5m/s. A wind tunnel consisting of acrylic material and pipes as a frame construction was used in the test. The test findings show that turbine blades with a total of four blades produce the maximum generator power of 0.274 watts at a wind speed of 5 m/s. Meanwhile, the turbine blade with 8 blades has the lowest output power at a wind speed of 4 m/s and a power value of 0.0028 W. Then, with 8 blades, it has a relatively low output energy compared to 4 and 6 blades. Therefore, the highest efficiency performance of wind turbine use is achieved by a turbine with a number of 4 blades with a maximum efficiency is 9,16% and the minimum efficiency it seen in a wind turbine with a number of blades 8 within 0,07%.
PENGARUH PENYIMPANGAN GERAK SUMBU AXIS XYZ PADA CNC ROUTER 3018 Iskandar, Iskandar; Sani, Almadora Anwar; Suryana, Didi; Utami, Ogi Meita; Zainuddin, Zainuddin; HB, Indra; Nugraha, Muhammad
AUSTENIT Vol. 14 No. 2 (2022): AUSTENIT: October 2022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v14i2.5759

Abstract

The industry is currently transitioning into the Industrial Revolution 4.0 era. Technology disruption is becoming more prevalent. The major goal of this industrial revolution is to maintain the flow of essentials and goods. Technology advancements demand equipment, such as CNC machines, that can be utilized to produce the required components. Using a CNC Router 3018 machine for this investigation. Data from previously generated Computer Aided Design (CAD) programming is used during the production of specimen objects. It is then imported into the Computer Aided Manufacturing (CAM) programming software in order to generate the NC Code and operate the machine in accordance with the intended form. This research was done to find out how the CNC Router 3018's motion deviation on the XYZ axis affected things. Acrylic resin with a 10 mm thickness is used in the substance. The results of the measurement data analysis were then put through a "One Ways" ANOVA. Motion axis, specifically: X axis: deviation 0.6%; Y axis: 0.4% deviation; Z axis: deviation 0.77%. The CNC Router 3018 is effective for tasks like cutting and engraving.
Design research on developing primary students’ conceptual understanding of area through visual-spatial activities Utami, Ogi Meita
Jurnal Gantang Vol 10 No 2 (2025): Jurnal Gantang
Publisher : Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/ev8dy768

Abstract

This study examines how primary students develop a conceptual understanding of composite shapes, a topic that many learners find challenging beyond the routine use of formulas. The research was motivated by the persistent issue that instruction in the area in elementary classrooms is often procedural and does not sufficiently foster reasoning about spatial structure, decomposition, and measurement. This study employed a Design Research approach in a sixth-grade classroom (n = 6 students) to iteratively develop and test a Hypothetical Learning Trajectory (HLT) for the learning area of composite shapes through visual-spatial and puzzle-based activities. Data were collected through a pre-test, two instructional activities (Activity 1 and Activity 2), classroom observations, and a post-test. Data were analyzed qualitatively through retrospective analysis aligned, with HLT, supported by descriptive coding of students’ strategies, triangulation of written work, and teacher field notes. Findings indicate that students shifted from purely visual recognition toward more analytical strategies, such as partitioning, conservation, transitivity, and additivity, which emerged during instruction. The results suggest that structured visual-spatial tasks grounded in a realistic context effectively bridge abstract area concepts and classroom practice, informing future instructional design in elementary geometry.
Co-Authors Ali Medi Effendi, Sairul HB, Indra Hendradinata , Hendradinata Iskandar Iskandar Lily Rahmawati, Lily Muhammad Nugraha Ozkar F. Homzah, Ozkar F. Putri, Fenoria Sampurno, Rachmat Dwi Sani, Almadora Anwar Setiawan, Edo Sundari, Ella Suryana, Didi Vernando, Deby Zainuddin, Zainuddin