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All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS) Jurnal Pengabdian UntukMu NegeRI Turbo : Jurnal Program Studi Teknik Mesin CHEESA: Chemical Engineering Research Articles JURNAL PHOTON Jurnal Teknik Kimia Jurnal Teknik Mesin Specta Journal of Technology Jurnal Engine: Energi, Manufaktur, dan Material Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Surya Teknika Journal of Mechanical Design and Testing (JMDT) METAL : Jurnal Sistem Mekanik dan Termal BATOBO: Jurnal Pengabdian Kepada Masyarakat Jurnal Polimesin
Abrar Ridwan
Department Of Mechanical Engineering, Faculty Of Engineering, Universitas Muhammadiyah Riau. Jl. Tuanku Tambusai, Pekanbaru, Riau 28294
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Identifikasi Penyebab vibrasi yang Mengindikasikan Blade Pass Frequency (BPF) DI PT XX Sianipar, Bobi Septian A; Ridwan, Abrar
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 2 (2025): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i2.4428

Abstract

Penelitian ini bertujuan untuk menyelidiki penyebab vibrasi tinggi pada pompa sentrifugal 211-PM-9B PT. XX. Terutama setelah perbaikan bearing. Pengukuran setelah perbaikan menunjukkan puncak tertinggi 3P DE V-VEL (9,77mm/s) pada 4 november 2024. Melalui pengumpulan data vibrasi menggunakan Accelerometer SKF Microlog Analyzer dan analisis spektrum Fast Fourier Transform (FFT),serta data operasional dari DCS dan pressure gauge, penelitian ini mengidentifikasi Blade Pass Frequency (BPF) sebagai indikator utama. Analisi lebih lanjut mengungkapkan ketidakseimbangan impeller sebagai penyebab signifikan, didukung oleh perhitungan gaya (1453,85 N)dan korelasi kuat RPM-amplitudo (k = 1,244 mm/s per RPM) efektivitas dynamic balancing  (54,45%reduksi vibrasi) memperkuat temuan ini. Meskipun NPSH memadai,potensi kavitasi lokal dan faktor operasional. Rekomendasi meliputi balancing impeller presisi sesuai standar ISO 1940 dan inpeksi bilah impeller untuk mitigasi vibrasi.
Pemanfaatan Panas Buang Tungku Gasifikasi Penghasil Listrik Menggunakan Termoelektrik Sebagai Solusi Limbah Pabrik Tahu di Desa Tanah merah Kecamatan Siak Hulu Kabupaten Kampar, Provinsi Riau Ridwan Abdurrahman; Abrar Ridwan; Lega Putri Utami
BATOBO: Jurnal Pengabdian Kepada Masyarakat Vol 1 No 1: BATOBO: Juni 2023
Publisher : Jurusan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/batobo.1.1.29-35

Abstract

Limbah pabrik tahu di Desa Tanah Merah, Kecamatan Siak Hulu, Kabupaten Kampar, Provinsi Riau, dapat menjadi masalah lingkungan yang signifikan. Limbah ini terutama terdiri dari panas buang yang dihasilkan selama proses produksi tahu menggunakan tungku gasifikasi. Namun, panas buang ini biasanya tidak dimanfaatkan secara efisien dan hanya terbuang sia-sia. Oleh karena itu, perlu dicari solusi yang ramah lingkungan dan berkelanjutan untuk memanfaatkan panas buang ini. Dalam penelitian ini, kami mengusulkan pemanfaatan panas buang tungku gasifikasi pabrik tahu menggunakan modul termoelektrik. Modul termoelektrik adalah perangkat yang dapat mengubah perbedaan suhu menjadi energi listrik. Dalam konteks ini, panas buang dari tungku gasifikasi akan digunakan untuk menghasilkan suhu tinggi pada satu sisi modul termoelektrik, sedangkan suhu lingkungan akan berfungsi sebagai suhu rendah pada sisi lainnya. Perbedaan suhu ini akan menciptakan gradien suhu yang akan menghasilkan potensi listrik melalui efek Seebeck dalam modul termoelektrik. Dengan menerapkan sistem ini, panas buang dari tungku gasifikasi dapat diubah menjadi energi listrik yang dapat dimanfaatkan untuk memenuhi kebutuhan listrik pabrik tahu. Selain itu, ini juga akan membantu mengurangi emisi gas rumah kaca dan dampak negatif lainnya terhadap lingkungan. Dengan memanfaatkan energi panas yang sebelumnya terbuang sia-sia, pabrik tahu dapat mengurangi penggunaan energi konvensional dan meminimalkan dampak negatif terhadap lingkungan. Penelitian lebih lanjut dan implementasi praktis perlu dilakukan untuk memastikan kelayakan dan efektivitas pemanfaatan panas buang ini dalam skala yang lebih besar.
Analysis of Booster Pump Power and Feasibility Using Total Head and NPSH Calculations on Triethylene Glycol (TEG) Circulation System of Project X in Offshore Fabrication Industry : Case Study at PT. NOV Profab Indonesia Muhamad Agung; Abrar Ridwan
TURBO [Tulisan Riset Berbasis Online] Vol 15 No 1 (2026): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v15i1.4960

Abstract

The Triethylene Glycol (TEG) circulation system functions to maintain the stability of the natural gas dehydration process by continuously circulating TEG from the surge drum to the process equipment. The booster pump plays a crucial role in sustaining the system’s flow rate and pressure to ensure optimal water vapor absorption. This study aims to calculate the total head of the system and evaluate the Net Positive Suction Head (NPSH) of the booster pump in the TEG circulation system at Project X, located at PT. NOV Profab Indonesia’s offshore fabrication facility. The calculation was performed using Bernoulli’s equation combined with major and minor head loss analysis, while the NPSHr (required) value was determined based on the HSVN (Head Suction Vapour Number) derived from the Cavitation Chart. The analysis results show that the total head of the system is 5.6 meters and the NPSHa (available) is 5.6 meters, which is higher than the NPSHr obtained from the HSVN data of 1.6 meters. Therefore, the pump operates safely without cavitation. These findings can serve as a reference for evaluating pump performance and as a design basis for TEG circulation systems in gas production facilities with similar characteristics.
Evaluasi dan Desain Ulang Jalur Pipa Suction Pompa Sentrifugal Berbasis Standar API RP 686 untuk Mitigasi Kavitasi Abrar Ridwan; Ibnu Zaki; Sunaryo Sunaryo
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 3 (2026): July
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i3.60498

Abstract

This research aims to enhance operational reliability and prevent cavitation by evaluating and redesigning the pump's suction piping system in accordance with API RP 686 standard. The evaluation involved analyzing existing field data and comparing it against API RP 686, followed by suction pipeline redesign and Net Positive Suction Head Available (NPSHa) calculations for both conditions. The results show the existing NPSHa to be 4.78 meters, slightly below the pump's NPSHr (5 meters), indicating potential for cavitation due to existing piping configuration non-compliance with API RP 686. After redesign, NPSHa significantly increased to 7.27 meters, exceeding the pump's NPSHr, proving the new design effectiveness in eliminating cavitation.
Failure analysis of electric motor due to excessive shaft load using the FMEA method in rice milling units Sunaryo Sunaryo; Wisnu Yogi Pangestu; Abrar Ridwan
Jurnal Polimesin Vol 24, No 4 (2026): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i4.8211

Abstract

While Failure Mode and Effect Analysis (FMEA) has been widely applied in heavy industries, its application in the mid-scale agro-industrial sector remains highly limited. This study addresses this critical gap by analyzing the mechanical failure of electric motors in Rice Milling Units (RMUs) within the Lappariaja District, focusing specifically on the synergistic impact of excessive shaft loading and high-particulate environments on motor longevity. Adopting a descriptive quantitative approach, this research integrates multi-modal data collection, including field observations, technical measurements using digital multimeters, and operator interviews. The FMEA framework was applied to calculate the Risk Priority Number (RPN) for each prominent failure mode. The empirical findings reveal that the Stator Winding is the most critical vulnerability, with the highest RPN of 252, due to a severe "thermal trap" phenomenon in which rice husk dust acts as an unwanted thermal insulator. This is closely followed by bearing wear with an RPN of 224. Scientifically, this study contributes a tailored risk-priority framework that maps the ways in which environmental stressors accelerate mechanical degradation under excessive loads. Industrially and operationally, this research delivers a predictive maintenance roadmap and prioritized intervention schedule for RMU operators. Shifting the paradigm from reactive "fix-when-broken" habits to targeted maintenance prevents catastrophic motor failure, minimizes operational downtime, and eliminates costly total replacements, thereby safeguarding local food security and rural economic stability.
Co-Authors -, Mintarto Adhika Widyaparaga Afdhal Afdhal Ahmad Fudholi Ahmad Kafrawi Nasution Ahmad Kafrawi Nasution, Ahmad Kafrawi Arfie I. Firmansyah Ari Pani Desvina Ari Pani Desvina Aris Fiatno Athala, Azzalya Putri Awaludin Marti Awaludin Martin Azzalya Putri Athala Budi Istana Dalilla, Faizan Erwanto, Eka Faizan Dalilla Fauzun Fauzun Firmansyah, Arfie I. Hamzah, Munawir Hartono Hartono Hartono Hartono Hery Mada Indra Paska Ibnu Zaki Japri Kamaruzzaman Sopian Laras S Widara Lega Putri Utami Legisnal Hakim lobertus gunawan hasugian Mahendra, Rain Agri Majid Khan Bin Majahar Ali Majid Khan Bin Majahar Ali Mariyam Fazleena Musthafa Meka, Wahyu Muhamad Agung Muhammad Desmico Ekta W Muhammad Kunta Biddinika Muhammad Nawa Syarif Munawir Hamzah Mursyidah Umar Mursyidah Umar, Mursyidah Nasruddin - Nur Farhana Mohd Razali Rahmadeni Rahmadeni Rain A Mahendra Rezeki, Tri Nur Ridwan Abdurahman Ridwan Abdurrahman Rilnanda, Ade Sianipar, Bobi Septian A Siswahyudianto Sitohang, Roberto Fermadi Sitompul, Izazul Kafitra Sunaryo Sunaryo Sunaryo Sunaryo Tri N Rezeki Tri Suyono Wahyu Meka Widara, Laras Sita Wisnu Yogi Pangestu Yendra, Rado Yulia Fitri