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All Journal Journal of Mechanical Engineering Education (Jurnal Pendidikan Teknik Mesin) ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Operations Research: International Conference Series Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Jurnal Inkofar
Noviandani, Pradika
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Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Public Health Transportation

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ANALISIS HASIL KERJA PADA UJI KOMPETENSI PRAKTIK KEJURUAN TEKNIK PEMESINAN SISWA SMK Noviandani, Pradika; Purnawan, Purnawan; Wardaya, Wardaya
Journal of Mechanical Engineering Education Vol 1, No 2 (2014): Desember
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/jmee.v1i2.3819

Abstract

Tujuan penelitian ini, adalah untuk mengetahui gambaran hasil kerja pada pelaksanaan uji kompetensi praktik kejuruan teknik pemesinan di SMK Negeri 6 Bandung. Metode yang digunakan adalah metode deskritif. Data dijaring melalui studi observasi secara langung pada pelaksanaan uji kompetensi praktik kejuruan teknik pemesinan untuk pekerjaan membubut. Jenis proses terdiri atas membubut diameter, membubut panjang, mengebor diameter, membubut alur, membubut ulir, membubut tirus dan mengebor kedalaman. Hasil kerja uji kompetensi praktek diukur menggunakan jangka sorong analog dengan ketelitian 0.05 mm untuk mengetahui dimensi produk hasil kerja. Subjek penelitian sebanyak 30 siswa. Rata-rata nilai produk hasil kerja dalam proses pembubutan adalah 16. Distribusi penilaian untuk aspek hasil kerja berdasarkan kriteria yang dibuat adalah 13.33%, 40%, 40%, 6,67% untuk masing-masing kategori A,B,C dan E.
ANALISIS PENGARUH PEWARNA, TEMPERATUR DAN KEJERNIHAN AIR TERHADAP NILAI KEKUATAN WARNA KAIN ZIBDA PADA MESIN JET DYEING MINI HISAKA DI PT.XYZ Noviandani, Pradika; Sari, Marta Hayu Raras Sita Rukmika; Rahmawati, Sinta
Jurnal Inkofar Vol 9, No 1 (2025)
Publisher : Politeknik META Industri Cikarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46846/jurnalinkofar.v9i1.434

Abstract

Kualitas warna menjadi salah satu indikator utama dalam industri tekstil, terutama pada produk kain yang ditujukan untuk pasar ekspor dengan spesifikasi ketat seperti kain zibda. Dalam rangka memastikan konsistensi warna yang sesuai standar pelanggan, diperlukan pemahaman mendalam mengenai faktor-faktor yang memengaruhi hasil pewarnaan. Pengujian dilakukan dalam skala laboratorium sebelum diterapkan dalam proses produksi massal guna mengetahui sejauh mana ketiga faktor jenis dan konsentrasi zat pewarna, temperatur proses pencelupan, serta kejernihan air berperan dalam menentukan kekuatan warna kain zibda di PT. XYZ.Untuk mendukung tujuan tersebut, penelitian ini menggunakan pendekatan eksperimental dengan rancangan faktorial 2³, di mana setiap variabel dikontrol secara sistematis. Sampel kain zibda diberi perlakuan berdasarkan kombinasi parameter yang telah ditentukan. Nilai kekuatan warna diukur menggunakan Computer Color Matching (CCM) untuk memperoleh data kuantitatif berupa nilai absorbansi dan intensitas warna, dengan standar dari pelanggan sebagai acuan penilaian.Hasil dari penelitian ini diharapkan dapat menentukan parameter optimal dari ketiga variabel yang diteliti, guna memperoleh warna yang konsisten dan sesuai spesifikasi. Selain itu, temuan ini juga diharapkan memberikan rekomendasi teknis bagi PT. XYZ dalam meningkatkan efisiensi proses pencelupan serta meminimalkan potensi cacat warna akibat variasi kualitas bahan baku dan kondisi lingkungan.Kata Kunci: Kekuatan Warna, Kain Zibda, Proses Dyeing, CCM, Determinasi Parameter 
Design and Construction of 100 WP Capacity Tracker Solar Panel using VDI 2206 Method HARJA, HERMAN BUDI; DIRATAMA, MOHAMMAD YAZID; SURYATINI, FITRIA; FATURROHMAN, MUHAMMAD; NOVIANDANI, PRADIKA
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 13, No 3: Published July 2025
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v13i3.243

Abstract

There are main issues in optimizing the energy conversion of solar panels, including (1) the movement of the sun's position and (ii) the best capability of solar panels to capture sunlight, which must be perpendicular to the sun's rays. The objective of this research is to conduct a study into the design and development of a solar panel tracking system, specifically to obtain the effectiveness value of the tracking system. The VDI 2206 method is used in the design, which integrates three main systems: mechanical, electronic, and information technology. Based on the test results, the performance of the solar panel tracker increased by 48.38%. With a tracking system power requirement of 5.51%, the percentage increase in the net energy gain of the tracker solar panel is 40.2% compared to static solar panels. Therefore, solar panel systems equipped with tracking devices are more effective and efficient compared to static solar panels.
Performance Analysis of Industrial Ventilation Systems: A Case Study of Exhaust Fan and Roof Cooling Fan Installations in a Textile Manufacturing Area noviandani, pradika; Latipah, Yeni; Sari, Marta Hayu Raras Sita Rukmika; Suryaman
Operations Research: International Conference Series Vol. 6 No. 4 (2025): Operations Research International Conference Series (ORICS), December 2025
Publisher : Indonesian Operations Research Association (IORA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/orics.v6i4.438

Abstract

This study presents a performance analysis of industrial ventilation systems using exhaust fans and roof cooling fans in a textile manufacturing environment. The research was conducted as a case study in the Preparation and Processing areas of a textile factory located in Cimahi, West Java, Indonesia, under actual operating conditions. Air temperature and relative humidity (RH) were measured and compared with recommended textile industry standards (20–30°C and RH 55–75%). Two mechanical ventilation alternatives were evaluated: an exhaust fan system (1.46 × 1.46 m) and a roof cooling fan system (1.82 × 1.45 m). The results show that areas equipped with exhaust fans exhibited lower indoor temperatures by approximately 2–3°C and more stable RH levels (50–52%) compared to areas without mechanical ventilation, where temperatures reached up to 42°C and RH dropped to 25–30%. Both systems required 0.75 kW per unit, with monthly operating costs ranging from IDR 7–10 million. Volumetric efficiency analysis indicates that exhaust fans achieved 60,000 m³/kWh, while roof cooling fans produced 46,667 m³/kWh, indicating a 28% difference in airflow efficiency. These findings provide empirical evidence on the thermal and energy performance characteristics of industrial ventilation systems in textile production areas.
ANALISIS UMUR PAKAI (LIFETIME) BEARING 6207 KNCG PADA KOMPONEN TAKE OFF ROLL MESIN TEXTURIZING MURATA 33-H DI PT. XYZ Noviandani, Pradika; Thomas, Fendy; Zakaria, Kiki; Hadiaty Yuningsih, Siti
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 11 No 2 (2025): TEKNIKA STTKD: JURNAL TEKNIK, ELEKTRONIK, ENGINE
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56521/teknika.v11i2.1477

Abstract

The textile industry plays an important role in the national economy, especially in absorbing labor and contributing to foreign exchange through export activities. One of the crucial processes in the textile production chain is yarn texturization, which greatly determines the physical and aesthetic characteristics of the yarn as the final product. PT. XYZ is a textile company that produces polyester-based textured yarn using a Murata 33-H type texturizing machine. This machine operates continuously at high speed and is highly dependent on the reliability of its mechanical components, one of which is the 6207 KNCG type bearing installed on the Take Off Roll section. Bearings function to support rotating shafts with high loads and speeds, so they are very susceptible to wear. Bearing failure can cause production downtime, damage to other components, and decreased product quality. Therefore, a predictive approach is needed in maintenance by analyzing the bearing lifetime theoretically. This study aims to calculate the estimated bearing lifetime and prepare a replacement schedule and appropriate preventive inspection to support smooth operations. The analysis results show that the theoretical lifetime of the 6207 KNCG bearing reaches 4.354,1 hours or around 181.6 operational days. Considering the safety factor, a replacement schedule of every 3.487,2 hours is recommended. In addition, routine inspections are carried out periodically to detect early signs of damage. This strategy is expected to improve machine reliability, maintenance cost efficiency, and production continuity at PT. XYZ.
Co-Authors Diratama, Mohammad Yazid FATURROHMAN, MUHAMMAD Fitria Suryatini Hadiaty Yuningsih, Siti Herman Budi Harja, Herman Budi Latipah, Yeni Purnawan Purnawan Rahmawati, Sinta Sari, Marta Hayu Raras Sita Rukmika Thomas, Fendy Wardaya Wardaya Zakaria, Kiki