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Biodiesel Production from POME (Palm Oil Mill Effluent) and Effects on Diesel Engine Perfor-mance Suardi Suardi; Moch Purwanto; Aung Ye Kyaw; Wira Setiawan; Muhammad Uswah Pawara; Alfawan Alfawan
International Journal of Marine Engineering Innovation and Research Vol 7, No 4 (2022)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v7i4.14492

Abstract

One way to reduce the scarcity of fuel oil is to make environmentally friendly alternative fuels such as biodiesel. The utilization of biodiesel can be a new energy source and also help reduce the excessive use of fuel, especially diesel and diesel oil in Indonesia. In Indonesia, the amount of palm oil will reach 49.7 tons by 2021, and this data is up 2.9% from the pre-vious year. Palm fruit is processed into CPO. More palm oil processing will produce waste called POME (Palm Oil Mill Effluent). The diesel engine transesterification method is suitable for the manufacture of biodiesel. The amount of base on the catalyst's surface affects the catalyst's activity. So that the higher the base value on the catalyst, the higher the yield of biodiesel that will be produced. The biodiesel produced will be tested on a 4-stroke diesel engine with a B5 and B10 blending composition. The study's results showed that the density and viscosity values for B5 were 5.8 cSt and 810 Kg/m3 and for B10 were 6.3 cSt and 860 Kg/m3. As for engine performance, power, torque, and SFC for B5 fuel at 4000-watt load conditions and 1000 Rpm, engine speeds are 1.18 Kw, 11.28 Nm, and 256.8 gr/Kw. B10 at 4000-watt load condition and 1000 Rpm engine speed is 1.16 Kw, 11.12 Nm, and 269.2 gr/Kw.
Effect of Post Weld Heat Treatment on Tensile Strength of ASTM A36 Welded Joints: Application on Hull Vessel Material M. Uswah Pawara; Alamsyah Alamsyah; Muhammad Syarif; Faisal Mahmuddin; Harifuddin Harifuddin
International Journal of Marine Engineering Innovation and Research Vol 8, No 1 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i1.16312

Abstract

In fact, in the welding process, there are many problems that arise. Such as cracking caused by excessive stress Residual stress can result in a decrease in the mechanical properties of a material such as brittle fracture, fatigue, and cracking. The purpose of this study was to determine the comparison of tensile strength in ASTM plate welded joints A36 with variations of single vee butt and single bevel butt and knowing the comparison of the effects ofpost-weldd heat treatment on welded joints with variations of single v butt and single bevel butt joints. The method used in this research is experimental. The results of the data obtained in this study The value of the tensile strength of the Single Bevel Butt joint without the influence of Heat Treatment is 153.87 MPa, the tensile strength of the Single Vee Butt joint without the influence of Heat Treatment is 161.75 MPa and the tensile strength of the seam Single Bevel Butt with the effect of Heat Treatment is 196,65 MPa. The tensile strength of the Single Vee Butt seam with the effect of Heat Treatment is 173,36 MPa.
Hull Strength Investigation of Traditional Boat “Sandeq” Using Numerical Experiment: English Andi Mursid Nugraha Arifuddin; Alamsyah; Muhammad Uswah Pawara; Rodlian Jamal Ikhwani; Agus Budianto; Irfan Fadillah
SPECTA Journal of Technology Vol. 6 No. 2 (2022): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (823.13 KB) | DOI: 10.35718/specta.v6i2.492

Abstract

Sandeq is an Indonesian traditional boat that is built instead of applying principal spiral design and technical calculation in its design and construction. Its construction relies on the inherited skills of the builders. This study aims to investigate the structural strength of the boat with numerical experiments by computer software that applying the finite element method (FEM). Longitudinal and transversal hull strength will be examined for four Sandeg models. The computational model of the boat hull has been designed and run with varieties of hull lengths using the software. The simulation results showed that the obtained longitudinal and transversal stresses were less than the allowable stress of the material based on the classification rules. In the transversal strength analysis, the ratio of working stress to material stress was 6,37%, 7,20%, and 5,98% on the sandeq A, B, and C respectively. As for longitudinal stress in hogging condition, the ratio was 2,77% 3,35%, 0,93%, and 0,72% on the sandeq A, B, C, and D respectively. for sagging condition, the ratio was 2,11%, 2,49%, 0,52%, and 0,69%.
PERENCANAAN DISTRIBUSI PENERANGAN UNTUK RUANGAN DI ATAS KAPAL TB LIBERTY 217 GT MENGGUNAKAN METODE ZONAL CAVITY suardi suardi; Muhammad Uswah Pawara; Alamsyah Alamsyah; Andi Mursid Nugraha Arifuddin; Faisal Mahmuddin; Sherly Clara
Jurnal Inovtek Polbeng Vol 13, No 1 (2023): Inovtek VOL. 13 NO 1 2023
Publisher : POLITEKNIK NEGERI BENGKALIS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/ip.v13i1.3164

Abstract

Perencanaan kelistrikan kapal harus dilakukan secara cermat dan akurat karena akan berpengaruh terhadap besar daya generator yang akan digunakan. Generator kapal dirancang untuk mampu mendistribusikan listrik untuk kebutuhan power (pompa), Penerangan (Lightning), Komunikasi dan Navigasi untuk berbagai kondisi pelayaran.  Sama halnya dengan kapal lainnya, TB Liberty  juga memerlukan distribusi tenaga dari generator untuk suplai kebutuhan listrik di atas kapal khususnya untuk penerangan kapal. Tujuan dari penelitian ini adalah untuk mengetahui besaran daya listrik yang dibutuhkan untuk distribusi penerangan diatas kapal dengan menggunakan lampu Light-Emitting Diode (LED). Metode yang digunakan adalah metode zonal cavity dengan konsep dasar membagi setiap ruangan menjadi tiga bagian yaitu height ceiling cavity (hcc), height room cavity  (hrc), dan height floor cavity (hfc) serta penentuan nilai iluminasi sesuai dengan standar yang telah di tetapkan oleh American Bureau of Shipping (ABS). Hasil penelitian menunjukkan bahwa besar beban listrik untuk distribusi penerangan pada kapal TB Liberty dengan menggunakan lampu LED yaitu deck buttom plane sebesar 0.633 Kw, pada main deck sebesar 0.6625 Kw dan pada geladak navigasi didapatkan sebesar 0.238 Kw. Penelitian ini mampu menjadi rujukan dalam penentuan kelistrikan di atas kapal khususnya untuk instalasi penerangan kapal.
Design a Phinisi-Type Tourist Ship to Increase Tourist Interest in Vacationing at Taka Bonerate National Park Suardi Suardi; Adhy Rahmat; Wira Setiawan; Muhammad Uswah Pawara; Alamsyah Alamsyah; Andi Mursid Nugraha Arifuddin; Taufik Hidayat
International Journal of Marine Engineering Innovation and Research Vol 8, No 2 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i2.16616

Abstract

Tourism ship with the Phinisi ship concept for the Selayar Islands tourist area are designed to increase the number of tourist attractions in the area. With beach tourism destinations and coral reefs, the Selayar region is very possible to become an alternative tourist destination in Indonesia besides Bunaken, Raja Ampat, Labuan Bajo, and the island of Bali. This ship is designed with wood materials and carries the theme of the traditional Phinisi ship which is the hallmark of ships made by the Bugis-Makassar tribe since 3000 years ago and has been recognized by UNESCO as one of the world's cultural heritage (Art of Boatbuilding in South Sulawesi). This study aims to obtain a tourist ship design that can be an attraction for tourists to vacation in the Selayar Islands. The method used in this study is the parent ship design approach method, this method is very commonly used in the ship design process, namely by using a comparison ship as a reference in the design of a new ship. The main ship dimensions obtained from this research are Loa = 26 m, B = 6.1 m, H = 2.48 m, T = 1.6 m, Vs (max) = 10 Knots, and Crew = 6 persons. The room on the ship is made like a classy hotel room and other services can pamper tourists.
Design of Motorcycle-Passenger Ship (Klotok) Catamaran Type for Kampung Baru Balikpapan - Penajam Paser Utara Suardi Suardi; Rizky Risaldo; Andi Mursid Nugraha Arifuddin; Amalia Ika Wulandari; Wira Setiawan; Muhammad Uswah Pawara; Alamsyah Alamsyah
International Journal of Marine Engineering Innovation and Research Vol 8, No 3 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i3.17880

Abstract

Balikpapan City has an area of 508.9 km2 which has 646,727 people living here. Balikpapan City is also known as a port city because it has two domestic ports namely Kampung Baru Port and Semayang Port. Currently, the port of Kampung Baru is still active in carrying out daily activities, namely the klotok boat crossing and also the dock for motor boats berths. The condition of mobility for crossing vessels in the port of Kampung Baru that uses boat klotok is inadequate due to the lack of supporting components for access to the ship so the safety of this port is questioned. besides that, klotok ships are also only able to carry a maximum of 21 passengers and 5 motorcycles and access to loading and unloading exits is very unsafe. The purpose of this study is to design a crossing ship that can be used safely for transportation for passengers and motorcycles that will pass the sea lane for crossing to the North Penajam Paser area. The ship is designed to have an easy access door or ramp door for passenger and motorcycle mobility to improve the safety of crossings at the port of Kampung Baru. The parent Design Approach method is used in this project, this method is one way of designing a ship using comparison or comparison, namely by taking a ship that is used as a reference for a comparison ship that has the same characteristics as designed ship. The main focus to be achieved in this research obtained a General Arrangement which has more cargo than the klotok ship with a capacity of 25 passengers and 10 motorcycles, and the dimension of the ramp door used in this final project is L 1.50 m and B 1.50 m. The Principal dimension of the ship obtained in this research is Loa = 12.50 m, Lpp = 11.50 m, Lwl = 11.96 m, B = 5.75 m, B1 = 1.64 m, H = 1.8 m, T = 0.85 m, Cb = 0.56, Vs = 15 Knots. The results of this study provide a good idea of the modernization of a comfortable ferry fleet for this area.
Perancangan Kapal Penangkap Ikan Tipe Multipurpose untuk Wilayah Pengelolaan Perikanan Republik Indonesia (WPP-RI) 713 Suardi Suardi; Muhdar Tasrief; Sultan Mahmud Cakasana; Wira Setiawan; Muhammad Uswah Pawara
Jurnal Kelautan Nasional Vol 18, No 2 (2023): AGUSTUS
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jkn.v18i2.11387

Abstract

Mayoritas kapal kapal nelayan di Indonesia khususnya yang berukuran 30 GT masih memiliki banyak kekurangan seperti kapasitas muatan yang sedikit, jarak tempuh pelayaran yang relatif pendek, desain kapal yang masih kurang ekonomis dan boros bahan bakar serta jumlah armada yang masih sangat sedikit dibandingkan dengan potensi perikanan yang melimpah di laut Indonesia khususnya wilayah pengelolaan perikanan Republik Indonesia (WPP-RI) 713 sehingga mendasari pentingnya dilakukan modernisasi kapal nelayan tradisional. Ukuran utama kapal diambil dari data satu kapal ikan yang terdaftar pada Biro Klasifikasi Indonesia. Desain kapal ini dilakukan dengan bantuan software Maxsurf Modeler dan AutoCAD student version. Adapun perencanaan mesin utama dilakukan dengan bantuan software Maxsurf Resistance dengan menggunakan metode perhitungan hambatan van Oortmerssen sehingga didapat kebutuhan daya mesin sebesar 99.733 HP setelah ditambah margin 15%. Kemudian dipilihlah mesin dengan Merk Yanmar dengan daya sebesar 110 HP. Dari hasil penelitian didapatkan hasil desain lines plan dan general arrangement kapal ikan multipurpose 30 GT dengan alat tangkap purse seine dan squid jigging yang dilengkapi dengan mesin Yanmar bertenaga 110 HP.
ANALISIS STRATEGI PENGEMBANGAN PELABUHAN SEMAYANG SEBAGAI PENYANGGA IBU KOTA NEGARA Muhammad Uswah Pawara
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.v13i2.3741

Abstract

Pelabuhan Semayang adalah sebuah pelabuhan laut yang terletak di Kota Balikpapan, Kalimantan Timur. Pelabuhan ini dikelola oleh PT Pelabuhan Indonesia IV. Pelabuhan ini berada pada Alur Laut Kepulauan Indonesia II di tepi Selat Makassar. Pelabuhan Semayang memiliki dermaga dengan panjang 4.89,5 meter dan lebar 21 meter. Dari sisi internal, Pelabuhan Semayang Balikpapan memiliki kendala dengan angka kunjungan kapal yang terus meningkat, peningkatan tersebut mengakibatkan kebutuhan akan fasilitas pelabuhan juga meningkat. Dengan terpilihnya wilayah Kalimantan Timur menjadi Ibu Kota Negara (IKN), jumlah penduduk kota tersebut dipastikan nantinya akan meningkat, di sekitar wilayah ibu kota akan tumbuh berbagai macam kegiatan ekonomi. Oleh sebab itu Strategi pengembangan pelabuhan dengan fungsi Pelabuhan Semayang dengan terpilihnya Kalimantan Timur menjadi Ibu Kota Negara (IKN) perlu dianalisis. Penelitian ini bertujuan untuk menganalisa strategi pengembangan pelabuhan semayang terhadap nilai indikator kinerja fasilitas pelabuhan semayang sebagai penyangga Ibu Kota Negara.
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.
Freeboard and Trim Measurement: a Case Study of Landing Craft Tank Conversion to Ship Power Plan Suardi Suardi; Wira Setiawan; Samsu Dlukha Nurcholiq; Alamsyah Alamsyah; Andi Mursid Nugraha Arifuddin; Amalia Ika Wulandari; Muhammad Uswah Pawara
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 5, Number 1, March 2024 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/zl.v5i1.27886

Abstract

In this research, the ship power plan which is the result of a conversion from a landing craft tank is designed to meet the electricity needs in areas affected by a disaster or electricity crisis. So far, the government has chartered a similar ship from Turkey which is used to meet electricity needs in Indonesian areas which have been affected by the disaster and electricity crisis. This ship is modified to carry an electric generator which can later be sent to areas that need it. Two main focuses are the goal of this research, the first is to find the value of the freeboard and the second is the trim of the ship after the redesign. To achieve this goal, in this study a numerical calculation method was used to calculate the freeboard and trim values according to applicable standards. The results of the analysis show that the freeboard value is still safe, with the actual freeboard value being greater than the required freeboard (0.8 m > 0.44 m). For ship trim, the bow trim condition is obtained with a smaller LCG-LCB difference than the 0.05% LPP value (0.912 < 0.923). By looking at the results of these measurements, the condition of the ship's freeboard and trim is still in a fairly good category even though it has been converted from a landing craft tank to a ship power plant. This study can provide a reference for ship design before converting the actual ship so that it can carry out trim and freeboard tests to prevent build failures.
Co-Authors A, Alamsyah A. B. Mapangandro A. B. Mapangandro Abdul Basiq Zainal Abidin Abdul Mujib Syadzali Abdurrahman, Luthfi Abdurrahman, Luthfi Abdurrahman Abidin, Abdul Basiq Zainal Abiyyu Harly Saputra Ade Ray Siahaan Adhy Rahmat Agus Budianto Ahmad Razzan Ahmed Reza Falevi Akhir, Anshar Yaumil Alam, Alamsyah Alamsyah Alamsyah Alamsyah - Alamsyah Alam Alamsyah Alam Alamsyah alamsyah Alamsyah Alamsyah Alamsyah Alamsyah Alamsyah Alamsyah Alamsyah Pawara Alamsyah, Alamsyah Aldo Pangestu Alfawan Alfawan Alfawan Alwi, Muhammad Rusdy Amalia Ika W Amalia Ika W Amalia Ika Wulandari Amalia Ika Wulandari Amalia Ika Wulandari Amalia Ika Wulandari Amalia Ika Wulandari Andi Ardianti Andi Mursid Nugraha Arifuddin Andi Mursid Nugraha Arifuddin Andi Mursyid Nugraha Arifuddin Andi Mursyid Nugraha Arifuddin Anggela, Anggela Anugerah, Andi Nurwahid Ardianti, Andi Ardianti Arifuddin, Andi Mursid Nugraha Arifuddin, Mursid Nugraha Astin, Widya Yulia As’ad, Miftachus Surur Aung Ye Kyaw Aung Ye Kyaw Bancin, Sutomo Baratau, Irentya Anugra Budi Prayitno Cahyani, Alviana Eka Chris Jeremy Verian Sitorus Dianiswara, Anggoronadhi Dimas Prayoga Dwiyanti, Diva Syahirah Elfin Zulmi Azhar Fachrul Jaya, Muhammad Reza Faisal Mahmuddin Faisal Mahmuddin Faisal Mahmuddin Feston Sandi Paribang Fiesta Olivia Fitri, Ade Gom Gom Mulia Yehezkiel Tambunan Hapsari, Dessy Purwita Harifuddin Harifuddin Harifuddin Hariyono Hariyono, Hariyono Hijriah Hijriah Hijriah Hijriah, Hijriah Hijriah, Hijriah Ikhwani, Rodlian Jamal Indah Sari, Fitria Irawan, Reynadi Firzy Irfan Fadillah Jumalia, Jumalia Jumardi Jumardi, Jumardi Klara, Syerly Kumandang, Niti Gede Kustiwansa, Harlian Kusuma, I Putu Arya Lolo, Musa Lumbantoruan, Hendra Eliakim Lumenteri, Fido Fortunatus Luthfi Abdurrahman Mahmuddin, Faisal Manik, Aljoiden Mas`ud M, Ahmad Azwar Maulana, Mohammad Khafid Moch Purwanto Mochammad Purwanto mubarak, azhar aras Muhammad Reza Fachrul Jaya Muhammad Riyadi Muhammad Rusdy Alwi Muhammad Syarif Muhammad Yusuf Al-Hafidz Muhammad Zulkifli Muhammad Zulkifli Muhdar Tasrief Musa Lolo Musyarofah Musyarofah, Musyarofah Naufal, Daffa Ahmad Ningrat, Andi Nizam, Syahrul Ni’matus Sholihah Nugraha Arifuddin, Andi Mursid Nugraha, Andi Mursid Nugroho Septianda Oktavaro Pangestu, Aldo Paribang, Feston Sandi Pengestu, Pria Adi Pratama, Brian Yoga Pratama, Fernanda Wahyu Prayoga, Dimas Pria Adi Pengestu Rachmianty, Andi Raditya, Muhammad Yogi Rajagukguk, Pernando Anju Ramadana, Andi Najwa Ramadhani, Rizky Rara Gusnia Nurulhaini Reynadi Firzy Irawan Rifai, Muhammad Rizky Risaldo Rodlian Jamal Ikhwani Rodlian Jamal Ikhwani S.Pd. M Kes I Ketut Sudiana . Samsu Dlukha N Setiawan, Wira Sherina Fitri Hariani Sherly Clara Siagian, Firman Veryvicasi Vernando Simatupang, Gusrawati, Sander V S Suandar Baso Suardi Huda Suardi Suardi Sultan Mahmud Cakasana Syadzali, Abdul Mujib Syahab, Husein Syam, Muhammad Anjas Syerly Klara Syerly Klara Tasrief, Muhdar Tasrief, Muhdar Taufik Hidayat Taufik Hidayat Tobing, Andreyano Yosefan Lumban Widya Yulia Astin Wijaya, Vibra Wira Setiawan Wira Setiawan Wira Setiawan Wira Setiawan Wira Setiawan wulandari, amalia ika Wulandari, Amalia Ika Yosefan, Andreyano