Article Per Year (5 Year)
p-Index From 2021 - 2026
8.012
P-Index
This Author published in this journals
All Journal TEKNIK KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Rekayasa Mesin Journal of Mechanical Engineering Science and Technology JST ( Jurnal Sains Terapan ) JTT (Jurnal Teknologi Terpadu) Turbo : Jurnal Program Studi Teknik Mesin INOVTEK POLBENG JRST (Jurnal Riset Sains dan Teknologi) IJOCE (International Journal of Offshore and Coastal Engineering) Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Kelautan Nasional Wave: Jurnal Ilmiah Teknologi Maritim EPI International Journal of Engineering Jurnal Penelitian Enjiniring Fakultas Teknik Unhas Jurnal Abdi Insani International Journal of Marine Engineering Innovation and Research International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Jurnal Riset Teknologi Pencegahan Pencemaran Industri Computational and Experimental Research in Materials and Renewable Energy (CERiMRE) Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan JMES The International Journal of Mechanical Engineering and Sciences Journal of Marine-Earth Science and Technology Maritime Park: Journal Of Maritime Technology and Socienty International Journal of Metacentre PIKAT AMMA : Jurnal Pengabdian Masyarakat Jurnal Riset & Teknologi Terapan Kemaritiman Indonesian Journal of Maritime Technology or abbreviated (ISMATECH) Media Elektrik WAVE: Jurnal Ilmiah Teknologi Maritim
Suardi Suardi
Department Of Naval Architecture, Kalimantan Institute Of Technology, Balikpapan
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Physics Social Sciences Transportation Other

Published : 69 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 69 Documents
Search

 3   4   5   6   7 
Reliability and Risk Analysis of Lubrication System on Sabuk Nusantara 43 Suardi, Suardi; Setiawan, Wira; Alamsyah, Alamsyah; Wulandari, Amalia Ika; Hidayat, Taufik
International Journal of Offshore and Coastal Engineering (IJOCE) Vol 7, No 2 (2023)
Publisher : Pusat Publikasi Ilmiah Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25800914.v7i2.19319

Abstract

This study aims to present a systematic approach to evaluating the reliability of the lubrication system on the Sabuk Nusantara 43. The methods used in conducting risk assessments are quantitative methods and qualitative methods or semi-quantitative methods. In the quantitative method, the approach taken is more to the value (number) approach. Meanwhile, in the semi-quantitative method, the approach used is a qualitative approach and a quantitative approach. This method can identify potential events that not only cause disruption to pipeline operations but also events related to safety and the environment. The results showed that the biggest risk in the installation of Sabuk Nusantara 43 lubricant was found in the filter section with damage levels reaching five times in one year with risk matrix plotting in the major category (Not Acceptable) and risk control options (recommendation). Selection of filter components that are better and fulfill standards of existing rules, regular maintenance and checking, and avoiding the use of lubricating oil that is too old and used.
Performance and Emission Characteristics of Diesel Engines Using Biodiesel from Waste Cooking Oil with Cetane Number Improver Suardi, Suardi; Mahmuddin, Faisal; Klara, Syerly; Tasrief, Muhdar; Pawara, Muhammad Uswah; Hijriah, Hijriah; Fachrul Jaya, Muhammad Reza
International Journal of Marine Engineering Innovation and Research Vol 9, No 3 (2024)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i3.21551

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, suardi; Mahmuddin, Faisal; Klara, Syerly; Setiawan, Wira; Pawara, Muhammad Uswah; Jumardi, Jumardi
International Journal of Marine Engineering Innovation and Research Vol 9, No 1 (2024)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i1.19467

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.
Impact of Axe Bow Hull Shape on Patrol Ship Resistance, Freeboard, and Trim Suardi, Suardi; Hidayat, Taufik; Firmansyah, Mohammad Bagus; Kyaw, Aung Ye
Maritime Park: Journal of Maritime Technology and Society Volume 2, Issue 1, 2023
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/mp.v2i1.25478

Abstract

Patrol Ship is a type of ship that prioritizes speed because of its function to secure water areas. This study uses patrol ship design as the object of study in determining the amount of ship resistance because this ship uses an ax bow hull form, the purpose of this research is to determine the effect of the Axe Bow type hull form on ship resistance, freeboard, and ship trim. The method used in this study is a simulation method with the help of maxsurf software. The results of this study indicate that using the Ax Bow Hull Shape model gives a resistance value of 245.9 kN with a speed of 25 knots, a freeboard value of 0.95, and a trim of 0.006575 m and is included in the "Accepted" category. With these results, the use of the axe bow model for patrol ships can be used as an alternative in selecting the hull shape of a fast ship.
PURE PALM OIL SPRAY CHARACTERISTICS OF DIESEL FUEL INJECTOR Mamola, Randi; Nurcholik, Samsu Dlukha; Prahmana, Rico Aditia; Juangsa, Firman Bagja; Pratama, Raditya Hendra; Prihasto, Bima; Suardi, Suardi; Sa’adiyah, Devy Setiorini
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1981

Abstract

Diesel engines are widely used in many sectors due to their advantages of high energy density. To reduce emissions in diesel engines, a step that can be taken is to use renewable biofuel such as pure palm oil, which has a high viscosity and is difficult to get a fine atomization process in fuel spraying. However, a detailed analysis of the spray characteristics using pure palm oil fuel on conventional diesel engines has yet to be available. In this research, high-speed imaging was conducted to investigate the spray characteristics of pure palm oil compared to diesel fuel. The result shows that (1) at the start of the injection stage, both pure palm oil and diesel fuel have similar shapes, (2) the spray angle of pure palm oil is smaller due to orifice wall cavitation not occurring in the orifice, (3) and at the end of the injection stage, pure palm oil has larger droplets, which is also more difficult to atomize.
EXPERIMENTAL ANALYSIS OF CASTOR OIL AND DIESEL OIL MIXTURES IN A 4-STROKE COMPRESSION COMBUSTION ENGINES: EXPERIMENTAL ANALYSIS OF CASTOR OIL AND DIESEL OIL MIXTURES IN A 4-STROKE COMPRESSION COMBUSTION ENGINES Suardi, Suardi; Alamsyah, Alamsyah; Nugraha, Andi Mursid; Pawara, Muhammad Uswah
International Journal of Mechanical Engineering Technologies and Applications Vol. 4 No. 2 (2023)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2023.004.02.6

Abstract

The production of hydrocarbon fuels shows a downward trend which forces people to look for alternative renewable fuels such as biodiesel from vegetable oil. One solution that can be applied in the use of biodiesel mixed with castor oil. The purpose of this study was to determine the effect of using a mixture of castor oil on the performance of diesel engines. The method used in this experiment is testing it directly on a diesel engine. Experiments were carried out on machines with a load of up to 4000 watts by mixing pure diesel fuel with castor oil to produce biodiesel B10, B20, and B30 as fuel. The results showed that the use of castor oil biodiesel tends to be lower than diesel oil, the torque produced by B20 17,59 N.m is greater than diesel oil, and the thermal efficiency of B20 17,04 % and SFC B20 is 470,2 gr/kWh more economical than diesel oil. B20 provides better performance values foe diesel engines and this is the right solution to be an alternative fuel other than diesel oil.
Evaluation of Diesel Engine Performance Using Biodiesel from Cooking Oil Waste (WCO) Suardi, Suardi; Setiawan, Wira; Nugraha, Andi Mursid; Alamsyah, Alamsyah; Ikhwani, Rodlian Jamal
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol. 14 No. 1 (2023): May
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2023.v14.no1.p29-39

Abstract

The increasing use of fossil fuels will cause the world's oil reserves to be depleted. In this case, it is necessary to increase the use of alternative renewable fuels, one of which is biodiesel waste cooking oil (WCO). The method used is an experimental test with a mixture of used cooking oil biodiesel and fuel. Before testing, the temperature of each fuel is increased to determine the effect of temperature on the density and viscosity values. The highest density value is found in B50 fuel at 26 °C, with a density of 0.854 gr/ml, while the lowest density is found in diesel fuel at 60 °C, with a density of 0.822 gr/ml. The highest viscosity value is found in B50 fuel at 26 °C and 60 °C, which is 3.26 cSt. After that, testing was carried out on a diesel engine, which produced the highest thermal efficiency value of 21.16% on B50 fuel with a temperature of 60 °C at 1000 rpm rotation and a load of 4000 watts. The lowest thermal efficiency of 6.43% was found in B50 fuel with a temperature of 26 °C at 800 rpm and a load of 1000 watts. The lowest consumption was found in B30 with a temperature of 60 °C at 1200 rpm, which was 420.78 gr/kWh. From the results of the tests that have been carried out, it can be concluded that the lower the density and viscosity of the fuel, the better the performance of the diesel engine on average. High temperatures effectively make the engine performance value better than normal temperatures (26 °C), and the performance of diesel engines is better with WCO fuel, especially in SFC.
Experimental Study on The Performance Characteristics of 4 Stroke CI Engine using Biodiesel Blend from Coconut Oil suardi, suardi; Paribang, Feston Sandi; Setiawan, Wira; Wulandari, Amalia Ika; Pawara, Muhammad Uswah; Nugraha Arifuddin, Andi Mursid; Alamsyah, Alamsyah
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 1 (2024): March 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i1.188-196

Abstract

To address the challenges faced by the government in the realm of petroleum imports, a promising strategy was adopted in the utilization of biodegradable and renewable sources of biodiesel, such as coconut oil. This research employed two distinct methodologies: Transesterification for biodiesel synthesis and a comprehensive assessment of fuel properties. Subsequently, an experimental phase assessed biodiesel within an engine environment to analysis performance metrics. Results showed that B30 (30% coconut oil, 70% diesel oil) has density of 0.850 g/cm³, B50 (50% coconut oil) at 0.861 g/cm³, and B100 (Pure coconut oil) at 0.893 g/cm³. The values differed from regional standards. As per ASTM D6751, B30 has a viscosity of 2.31 cSt, B50 3.22 cSt, and B100 is 7.02 cSt. Engine performance revealed B50 with the highest torque at 11.787 Nm, while B0 (pure hydrocarbon diesel) has a thermal efficiency of 38%. B0’s lowest SFC (Specific Fuel Consumption) is 261.12 g/kWh at 2000 watts load and 1000 rpm. Biodiesel coconut oil provided comparable power and torque (0.3% difference from B0) but consumed more fuel (21.6 % higher usage than B0). Keywords:  Biodiesel, Coconut oil, Engine performance, Fuel properties, Transesterification.
KEKUATAN FIBERGLASS REINFORCED PLASTIC (FRP) SEBAGAI BAHAN GADING KAPAL KAYU Alamsyah Alam; Rodlian Jamal Ikhwani; Taufik Hidayat; Suardi Suardi
WAVE: Jurnal Ilmiah Teknologi Maritim Vol. 15 No. 1 (2021)
Publisher : National Research and Innovation Agency (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penggunaan baja untuk menggantikan kayu Bitti sebagai bahan konstruksi gading kapal kayu dinilai tidak praktis karena melalui proses pembentukan dan pemeliharaan, sehingga penggunaan bahan lain seperti FRP sangat penting. Penelitian ini bertujuan untuk mengetahui ukuran dan bentuk penampang bahan FRP yang sesuai sebagai pengganti gading kayu ditinjau dari segi kekuatan. Metode yang digunakan yaitu elemen hingga (FEM) dan dianalisis menggunakan metode eksperimen numerik pada software. Penelitian ini bersifat kualitatif dengan mengoptimalkan bahan FRP dengan bentuk penampang I beam, I beam+flange, box of hole beam, T beam, dan U beam+flange sebagai pengganti bahan kayu Bitti. Hasil penelitian menunjukkan gading kayu Bitti memiliki elastisitas (E) = 9534.02 MPa dan momen inersia penampang (I) = 2197x104 mm4 terjadi tegangan maksimum (?k) = 7.682 N/mm2 dan lendutan maksimum (?) = 0.1 mm, untuk faktor keamanan gading kayu Bitti (Sf) = 1.28, sedangkan bahan FRP pengganti gading kayu dengan nilai (E) = 69000 MPa dapat digunakan penampang I beam dengan nilai I = 316x104 mm4, I beam+flange dengan nilai I = 288x104 mm4, box of hole beam dengan nilai I = 317x104 mm4, T Beam dengan nilai I = 478 x104 mm4, serta U beam+flange dengan nilai I = 375x104 mm4, terjadi tegangan maksimum (?k) = 52.00 N/mm2 dengan lendutan maksimum (?) < 0.082 mm dan faktor keamanan (Sf) = 1.28. Bahan FRP pengganti kayu gading membutuhkan momen inersia penampang sebesar 1/7~1/5 kali lebih kecil dari momen inersia penampang kayu gading dengan elastisitas tujuh kali lebih besar dari kayu gading. Nilai ini dapat dijadikan patokan untuk ukuran kapal di atas ataupun di bawah 70 GT ketika akan menggunakan bahan FRP sebagai pengganti gading kayu.
Co-Authors A, Alamsyah Abdillah, Riza Abdul Basiq Zainal Abidin Abdul Mujib Syadzali Abdurrahman, Luthfi Abidin, Abdul Basiq Zainal Abiyyu Harly Saputra Adhy Rahmat Adila, Imam Rifqi Ahmad Razzan Aknul Ciptiandi Alamsyah Alamsyah Alamsyah - Alamsyah Alamsyah alamsyah alamsyah Alamsyah Alamsyah Alamsyah Alamsyah Alamsyah, Alamsyah Alamsyah, Alamsyah Alfawan Alfawan Alwi, Muhammad Rusdy Amalia Ika Wulandari Amalia Ika Wulandari Amalia Ika Wulandari Amalia Ika Wulandari Amalia Ika Wulandari amalia ika wulandari Amalia Ika Wulandari Andi Mursid Nugraha Arifuddin Andi Mursid Nugraha Arifuddin Andi Nadia Himaya Anggit Dwi Putra Anugerah, Andi Nurwahid Ardhi Hidayatullah Arifuddin, Andi Mursid Nugraha Astin, Widya Yulia Aulia, Ade Putri Rezki Aung Ye Kyaw Aung Ye Kyaw Ayu Nastiti, Yulia Bancin, Sutomo Baratau, Irentya Anugra Basri Said Baya, Nur Bima Jagad Saksana, Febrillian Burliyanto, Decky Cahyani, Alviana Eka Desinta Larasati Ashar Devy Setiorini Sa’adiyah Dimas Putra Wahid Rusparyansyah Dwiyanti, Diva Syahirah Elfin Zulmi Azhar Erifive, Pranata Erskine Simei Tonda Fabila, Nova Fachrul Jaya, Muhammad Reza Fahmi Zahrotama Fahrizul Hasmi, Achmad Faisal Mahmuddin Faisal Mahmuddin Fajar, Achmad Feston Sandi Paribang Fiesta Olivia Firman Bagja Juangsa Firmansyah, Mohammad Bagus Fitri, Ade Gad Gunawan Gom Gom Mulia Yehezkiel Tambunan Guskarim Rompon Habibi Habibi Handayani, Windah Hariyono, Hariyono Haryawan, Hafiz Hendry Hermayanti, Nabila Ayu Hidayat, Taufik Hijriah Hijriah Hijriah, Hijriah Hijriah, Hijriah Ikhwani, Rodlian Jamal Imawan Santosa, Pramudya Irvan Setiawan Jumalia, Jumalia Jumardi, Jumardi Klara, Syerly Kustiwansa, Harlian Kyaw, Aung Ye Lista Putri Adinda Rahmi Lumbantoruan, Hendra Eliakim Lumenteri, Fido Fortunatus M. Uswah Pawara Mahmuddin, Faisal Mambang Rezalut T Mamola, Randi Maulana, Mohammad Khafid Moch Purwanto mubarak, azhar aras Muhammad Rusdy Alwi Muhammad Yusuf Ismail Muhdar Tasrief Myistro, Evan Naufal, Daffa Ahmad Naval Architecture, Diva Nugraha Arifuddin, Andi Mursid Nugraha, Andi Mursid Orientius Paseru, Ricko Paribang, Feston Sandi Pradityana, Atria Prahmana, Rico Aditia Pranatal, Erifiive Pratama, Brian Yoga Pratama, Raditya Hendra Prihasto, Bima Qalbi AM, Chaerul Raditya, Muhammad Yogi Raditya, Muhammad Yogi Rajagukguk, Pernando Anju Ramadana, Andi Najwa Ramadhani, Rizky Rara Gusnia Nurulhaini Ratna Septati Yani Rifai, Muhammad Rijal Surya Rahmany Rio Hermawan Risaldo, Rizky Rizky Risaldo Rizqi Fahrezi, Dimas Rodlian Jamal Ikhwani Rodlian Jamal Ikhwani Rodlian Jamal Ikhwani Ryanda Bayu Laksana S.Pd. M Kes I Ketut Sudiana . Samsu Dlukha N Sarani Nigrat Nai Pos-Pos Setiawan, Wira Setiawan, Wira Setiorini Sa’adiyah, Devy Sherina Fitri Hariani Sherly Clara Siagian, Firman Veryvicasi Vernando Simanjuntak, Lowry Gabriel Simatupang, Gusrawati, Sander V S Sitanggang, Syahrul Gunawan Sitorus, Chris Jeremy Verian Stofani, Dhio Suanggana, Doddy Sultan Mahmud Cakasana Syadzali, Abdul Mujib Syahab, Husein Syaiful Umara, Muhammad Syerly Klara Syerly Klara Tasrief, Muhdar Tasrief, Muhdar Taufik Hidayat Taufik Hidayat Wati, Gusra Widya Yulia Astin Wijaya, Vibra Wira Setiawan Wira Setiawan Wira Setiawan Wira Setiawan wulandari, amalia ika Wulandari, Amalia Ika Wulandari, Amalia Ika Yosefan, Andreyano Zaed Yuliadi, Mochamad Zulkarnaen, Zen