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All Journal INOVTEK POLBENG International Journal of Marine Engineering Innovation and Research
Syerly Klara
Universitas Hasanuddin
Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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ANALISIS KEANDALAN DAN RISIKO SISTEM PELUMASAN MESIN UTAMA SABUK NUSANTARA 43 suardi suardi suardi; Muhammad Uswah Pawara; Faisal Mahmuddin; Syerly Klara; Muhammad Rusdy Alwi; Abdul Basiq Zainal Abidin
INOVTEK POLBENG Vol 13, No 2 (2023): VOL 13 NO 2
Publisher : POLITEKNIK NEGERI BENGKALIS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/ip.v13i2.3702

Abstract

Penelitian ini bertujuan untuk menyajikan pendekatan sistematis dalam mengevaluasi keandalan sistem pelumasan pada kapal Sabuk Nusantara 43. Penilaian risiko dilakukan dengan menerapkan dua pendekatan, yaitu metode kuantitatif dan metode semi-kuantitatif. Pendekatan kuantitatif menggunakan pendekatan nilai numerik dalam analisis, sementara pendekatan semi-kuantitatif menggabungkan elemen analisis kualitatif dan kuantitatif. Metode ini digunakan untuk mengidentifikasi potensi kejadian yang tidak hanya berpotensi mengganggu operasional perpipaan, tetapi juga dapat berdampak pada aspek keselamatan dan lingkungan. Hasil penelitian mengindikasikan bahwa risiko terbesar terkait dengan instalasi pelumas pada kapal Sabuk Nusantara 43 terfokus pada komponen filter. Tingkat kerusakan komponen ini mencapai lima kali dalam satu tahun, dan berdasarkan analisis risk matrixplotting, risikonya masuk dalam kategori "major" (Tidak Diterima). Sebagai solusi pengendalian risiko yang direkomendasikan, dianjurkan pemilihan komponen saringan yang mematuhi standar yang berlaku, pelaksanaan perawatan berkala yang cermat, serta penghindaran penggunaan minyak pelumas yang sudah terlalu lama atau bekas. Dalam konteks ini, penelitian ini menekankan pentingnya evaluasi keandalan sistem pelumasan pada kapal Sabuk Nusantara 43 dengan memanfaatkan pendekatan metode kuantitatif dan semi-kuantitatif. Temuan utama menunjukkan bahwa risiko terbesar terkait dengan komponen filter, dan perbaikan serta perawatan yang teliti sangat diperlukan untuk meminimalkan risiko kerusakan. Sebagai rekomendasi pengendalian risiko, disarankan pemilihan komponen yang memenuhi standar yang berlaku, pelaksanaan perawatan berkala yang teliti, serta manajemen penggunaan minyak pelumas yang lebih efisien.
Performance and Emission Characteristics of Diesel Engines Using Biodiesel from Waste Cooking Oil with Cetane Number Improver Suardi; Faisal Mahmuddin; Syerly Klara; Muhdar Tasrief; Muhammad Uswah Pawara; Hijriah; Muhammad Reza Fachrul Jaya
International Journal of Marine Engineering Innovation and Research Vol. 9 No. 3 (2024)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i3.4914

Abstract

The depletion of fossil fuel reserves has led to a global energy crisis, with increasing demand for alternative energy sources. Diesel fuel shortages, especially in countries like Indonesia, have driven the exploration of biodiesel as a sustainable alternative. This study aims to convert waste cooking oil (WCO) into biodiesel, with the addition of a cetane number improver (CNI) to enhance its performance in diesel engines. The biodiesel was produced through methanolysis, and 2-Ethylhexyl Nitrate (EHN) was added to improve combustion and reduce engine knocking. The results show that the produced biodiesel had a density of 856 Kg/m³ for B0, 872.7 Kg/m³ for B0 with CNI, and 872.1 Kg/m³ for B50CN. Viscosity values were 2.32 cSt for B0, 5.645 cSt for B50, and 4.722 cSt for B50CN. The cetane index was 49.2 for B50 and B50CN, while B0 had a value of 48. The emissions measured included CO levels of 194 mg/Nm³ for B0, 254 mg/Nm³ for B50, and 280 mg/Nm³ for B50CN. NOx emissions were 852 mg/Nm³ for B0, 755 mg/Nm³ for B50, and 825 mg/Nm³ for B50CN. Oxygen content was 15.9% for B0, 14.9% for B50, and 16.2% for B50CN. The findings indicate that adding EHN to WCO biodiesel improves fuel properties but increases emissions of CO and NOx. Overall, WCO-based biodiesel with EHN is a viable alternative fuel that balances performance improvements with environmental considerations.
Conversion of Waste Cooking Oil Combined With Corn Oil Into Biodiesel Using the Transesterification Method Suardi; Faisal Mahmuddin; Syerly Klara; Wira Setiawan; Muhammad Uswah Pawara; Jumardi
International Journal of Marine Engineering Innovation and Research Vol. 9 No. 1 (2024)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i1.5039

Abstract

This research endeavors to explore a novel alternative fuel source by combining waste used cooking oil and corn oil to create a biodiesel blend. The study addresses two main objectives: first, to investigate the properties of used cooking oil biodiesel with the addition of methanol and NaOH catalysts, and second, to assess engine performance using the biodiesel blend. The experimental approach employs transesterification, varying the catalyst quantity during biodiesel production. Preceding diesel engine testing, properties such as viscosity are assessed, revealing improved values meeting Indonesian National Standards post-catalyst addition, albeit with a decrease in calorific value. Engine performance is then evaluated, demonstrating that as the catalyst content increases, torque and thermal efficiency decrease, while specific fuel consumption (SFC) rises. Notably, the study concludes that a higher catalyst ratio aligns fuel properties closer to government-set standards. The most favorable engine performance is observed in the B50 sample with a catalyst variation of 1000 ml of methanol and 25 g of NaOH, showcasing superior torque, thermal efficiency, and opacity values compared to higher catalyst variations. This research underscores the importance of catalyst optimization in achieving an environmentally friendly biodiesel blend with enhanced engine performance.
Co-Authors Abdul Basiq Zainal Abidin Faisal Mahmuddin Hijriah Jumardi M. Uswah Pawara Muhammad Reza Fachrul Jaya Muhammad Rusdy Alwi Muhdar Tasrief Suardi Suardi Wira Setiawan