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All Journal TEKNIK JST ( Jurnal Sains Terapan ) JTT (Jurnal Teknologi Terpadu) INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Turbo : Jurnal Program Studi Teknik Mesin INOVTEK POLBENG IJOCE (International Journal of Offshore and Coastal Engineering) Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Wave: Jurnal Ilmiah Teknologi Maritim JURNAL SAINTIS Specta Journal of Technology International Journal of Marine Engineering Innovation and Research Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan Jurnal Techno Bahari JMES: The International Journal of Mechanical Engineering and Sciences Indonesian Journal of Maritime Technology or abbreviated (ISMATECH) Collaborate Daily Book Series Media Elektrik WAVE: Jurnal Ilmiah Teknologi Maritim
Alamsyah
Institut Teknologi Kalimantan
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Analisis Stabilitas Decommissioning Barge 400 Feet Ketika Lifting Operation Alan Dicky Swans Saragih; Destyariani Liana Putri; Alamsyah Alamsyah; Anggoronadhi Dianiswara
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 4, Nomor 3, Edisi November 2023
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/zl.v4i3.27699

Abstract

ecommissioning is the final stage of the life of a platform located offshore in order to support the decommissioning activities that will be carried out, a modified barge is designed to become a tool that can assist the dismantling of offshore platforms. The modification made is by adding an appending frame whose function is to lift the platform that is ready to be dismantled. Of course, not only that is a consideration in the modification of the decommissioning barge but also the planning of the stowage plan design for the modified barge model so that the components and cargo on the barge can be placed in the appropriate position so that the designed barge has a capacity that matches the purpose of the barge. Then when you have made a stowage plan for the decommissioning barge, the next step will be modeling the barge starting from making the hull to the load and also the tank. When all these parts have been made, validation is carried out to compare the value of the model with that in the stability booklet, if so, the next step is to create a code using the moses executive. Analysis when lifting that has been simulated in this study getting a value with the highest CoG point variation, the farthest and with a draft variation of 4.5m, 5.5m, 5.8m, it is found that the stability value meets the DNVGL-ST-N001 criteria in the GM (metacenter height) value, intact range, area ratio.
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
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.
Testing of Carbon Steel Pipe and Stainless Steel Duplex Pipes of Welding Joints : A Cost and Time Perspective Alamsyah Alamsyah; Ryo Herlambang; Rodlian Jamal Ikhwani; Taufik Hidayat; Wardina Suwedy
Collaborate Engineering Daily Book Series Vol. 1 No. 1 June (2023): Chapter Improve Competence To Complete The Requirements For International
Publisher : Collaborate

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Abstract

In the welding process, it is not uncommon for a defect or discontinuity to occur in the welding results. Common defects on the surface are undercut, concavity, incomplete penetration, spatter, burn-through, and mismatch. While defects in internal welds that are often found during testing are porosity, worm holes, slag inclusions, incomplete fusion, and cracks, To obtain pipeline results that comply with the specifications set by the welding engineer and ASME or ASTM standards, it is necessary to test surface cracks and inside cracks using the non-destructive test (NDT) method, namely the dye penetrant test and radiography test, to determine the results of welding at pipe joints. In addition, it is also necessary to know the time and cost required for each method in the testing process. The results of the radiography test and penetrant test on carbon steel pipe welding joints showed porosity welding defects 1 mm long. Weld defects in duplex stainless steel pipes were not found. Then the results of the total testing time using the radiography test take 18% longer than testing using the penetrant test. Furthermore, the total costs that need to be incurred during the test are found to be 2~3 times more expensive than the cost of the penetrant test.
Calculation of Lighting Capacity on The Pinisi Tourist Ship Using the Zonal Cavity Method Suardi, Suardi; Setiawan, Wira; Alamsyah, Alamsyah; Wulandari, Amalia Ika; Pawara, Muhammad Uswah; Raditya, Muhammad Yogi; Rifai, Muhammad
JMES The International Journal of Mechanical Engineering and Sciences Vol 8, No 2 (2024)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25807471.v8i2.17251

Abstract

Pinisi tourist ship is one of the tourist ship designs made to increase the interest of tourists to come to Taka Bonerate National Park. This tourist destination presents excellent maritime beauty, especially its coral reefs. Just like ships in general, pinisi also requires a supply of electricity, especially for use in lighting on board. This research aims to analyze the need for lighting power on board, by carrying out the concept of a tourist ship, the lighting system is also made like in a hotel with the aim of pampering tourists. In planning, the lighting system is made into two conditions, namely conditions during sleep and normal conditions. The type of lamp used is an LED lamp which is proven to be better than other types of lamps. The method used is the zonal cavity method or usually called the lumen method. The advantage of this method is that the power of the lights used in the room will be just right according to the needs of the room, neither more nor less, so it won't interfere with your eyesight because the lights don't feel dim or too bright. The results obtained were the following values for each Junction Lighting (JL), bottom deck (JL1) obtained a value of 0.419 kW, main deck (JL2) obtained a value of 1.058 kW, upper deck (JL3) obtained a value of 0.893 kW. The calculation value for the Junction Emergency (JE) was also obtained at 0.506 kW.
Experimental Study on The Performance Characteristics of 4 Stroke CI Engine using Biodiesel Blend from Coconut Oil suardi suardi; Feston Sandi Paribang; Wira Setiawan; Amalia Ika Wulandari; Muhammad Uswah Pawara; Andi Mursid Nugraha Arifuddin; 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.
PERAMALAN BEBAN PENERANGAN KAPAL RO-RO 32.45 METER MENGGUNAKAN METODE ZCM (ZONAL CAVITY METHOD) Suardi Suardi; Wira Setiawan; Muhammad Uswah Pawara; Andi Mursid Nugraha Arifuddin; Alamsyah Alamsyah; Widya Yulia Astin
Jurnal Media Elektrik Vol. 20 No. 3 (2023): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v20i3.5554

Abstract

Sistem penerangan di atas kapal penumpang kapal ro-ro 32.45 meter masih menggunakan lampu fluorescent atau biasa disebut sebagai lampu neon, lampu ini dipandang kurang efektif mengingat berbagai penelitian menyebutkan bahwa lampu fluorescent memiliki dampak negatif berupa kandungan mercury yang membahayakan lingkungan dan daya yang lebih boros dibandingkan dengan menggunakan lampu LED. tujuan dari penelitian ini adalah mengkaji tingkat penghematan daya generator untuk penerangan setelah mengganti lampu fluorescent menjadi lampu LED. Metode yang digunakan dalam penelitian adalah metode lumen atau biasa disebut metode ZCM (Zonal Caviti Method). Hasil penelitian di dapatkan jumlah beban listrik penerangan pada penerangan fluorescent yang telah di akumulasikan tiap deck sebesar 24.41 kW, sedangkan penerangan dengan jenis penerangan LED di dapatkan beban listrik penerangan sebesar 12.49 kW. Sehingga dengan hasil yang tertera di atas didapatkan efisiensi daya sebesar 11.92 kW yang kemudian akan disimulasikan pada desain gambar 3D.
Stability Study of Water Ambulance in East Kalimantan Inland Waterways Alamsyah; Ardhi Hidayatullah; Wira Setiawan; Suardi; Habibi; Samsu Dlukha Nurcholik; Wardina Suwedy
WAVE: Jurnal Ilmiah Teknologi Maritim Vol. 17 No. 1 (2023)
Publisher : National Research and Innovation Agency (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/wave.2023.186

Abstract

This paper discusses the prediction of ship stability before sailing. This study aims to determine the stability value of the water ambulance in specific operating scenarios. The method used in this study is the B-splines mathematical equation and the optimization method using Maxurf software, which varies ship loading by 100% DWT, 50% DWT, and 25% DWT. The results of the study showed that 100% DWT had a maximum GZ value of 40 degrees and an initial GM of 1.240 meters; 50% DWT conditions had a maximum GZ value of 41.8 degrees and an initial GM of 0.711 meters; and 25% DWT conditions had a maximum GZ value of 43.2 degrees and an initial GM of 0.653 meters. The initial GM value increases with an increasing DWT value. Meanwhile, the maximum GZ value decreased as the DWT value increased. All operational scenarios are determined to meet HSC 2000 Annex 8 monohull criteria.
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)

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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.
ANALISIS TEGANGAN REGANGAN PADA PELAT DECK DAN BOTTOM KAPAL FERRY RO-RO MENGGUNAKAN FINITE ELEMENT METHOD Amalia Ika Wulandari; Alamsyah Alamsyah; Cindy Lionita Agusty
WAVE: Jurnal Ilmiah Teknologi Maritim Vol. 15 No. 1 (2021)
Publisher : National Research and Innovation Agency (BRIN Publishing)

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Abstract

Tegangan dan regangan merupakan suatu hal yang krusial pada kekuatan kapal, hal ini menjadi sangat penting untuk mengetahui beban maksimal yang bisa diterima oleh kapal karena antara kedua hal tersebut saling berkaitan, alasan keselematan juga menjadi satu hal mengapa tegangan regangan patut untuk diketahui. Pada penelitian ini bertujuan untuk menganalisis tegangan regangan maksimum kapal dengan variasi ketebalan pelat 100%, 90%, 80% dan 60%, menggunakan metode yakni Finite Element Method. Hasil penelitian didapatkan nilai tegangan maximum pada ketebalan 100% yaitu 312.539 N/mm2 dengan regangan maximum yang dihasilkan yaitu 1,48 x 10-3. , untuk ketebalan 90% dihasilkan tegangan maximum sebesar 353.47 N/mm2 dan regangan maximum yang dihasilkan yaitu 1,68 x 10-3. , keteblan 80% tegangan maximum yang dihasilkan sebesar 617.78 N/mm2 dengan regangan maximum yang dihasilkan yaitu 0,29 x 10-3., ketebalan 60% tegangan maximum yang dikeluarkan sebesar 820.03 N/mm2 dengan regangan maximum yang dikeluarkan yaitu 0.39 x 10-3 . Untuk pelat 100% dan 90% tidak melebihi tegangan izin, sedangkan untuk pelat 80% dan 60% melebihi tegangan izin.
Design of Motorcycle-Passenger Ship (Klotok) Catamaran Type for Kampung Baru Balikpapan - Penajam Paser Utara Suardi; Rizky Risaldo; Andi Mursid Nugraha Arifuddin; Amalia Ika Wulandari; Wira Setiawan; Muhammad Uswah Pawara; Alamsyah
International Journal of Marine Engineering Innovation and Research Vol. 8 No. 3 (2023)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i3.5114

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.
Co-Authors Abrari Noor Hasmi Ade Ray Siahaan Adhy Rahmat Agus Budianto Aknul Ciptiandi Alan Dicky Swans Saragih Amalia Ika Wulandari Amalia Ika Wulandari Amalia Ika Wulandari Andi Mursid Nugraha Arifuddin Andi Mursyid Nugraha Arifuddin Anggoronadhi Dianiswara Ardhi Hidayatullah Ardhi Hidayatullah Arif Nur Iskandar Arwis Irmandana Asram Dio Pratama Bebeto Fandi Birana Bimo Harseno Ramadhan Chris Jeremy Verian Sitorus Christian Hendra Gonawan Cindy Lionita Agusty Cindy Lionita Agusty Cindy Lionita Agusty Daeng Paroka Daeng Paroka Destyariani Liana Putri Dimas Fajar Prasetyo Elyazha D. C. Faisal Mahmuddin Faisal Mahmuddin Faisal Mahmuddin Fernanda Wahyu Pratama Feston Sandi Paribang Habibi Habibi Habibi Habibi Habibi Habibi Handika Sanjaya Sitanggang Handika Sanjaya Sitanggang Harifuddin Harifuddin Hariyono Hariyono Hariyono Hariyono Harlian Kustiwansa Husein Syahab Husein Syahab Irfan Fadillah Irham Bahri Irvan Setiawan Ivan Fadilah Jamal Jamal Jusma Wahidah M. Rusydi Alwi M. Uswah Pawara Mangapoi E.H.A. Purba Merlistyo Driantama Arwan Muh. Reza Fachrul Jaya Muh. Reza Fachrul Jaya Muhammad Anjas Syam Muhammad Anjas Syam Muhammad Dipo Nugroho Muhammad Fikri Fadlurrahman Muhammad Nuzhand Muhammad Syarif Muhammad Yusuf Al-Hafidz Nurbaya Nurbaya Nurbaya Raditya, Muhammad Yogi Rifai, Muhammad Rizky Risaldo Rodlian Jamal Ikhwani Ryan Raruk Ryo Herlambang Samsu Dlukha N Samsu Dlukha Nurcholik Septiany Tri Pangestu Setiawan, Wira Sherly Clara Suardi Huda Suardi Suardi Suardi Suardi Taufik Hidayat Wahyu Dhono Saputra Wardina Suwedy Widya Yulia Astin Wira Setiawan Wira Setiawan Wira Setiawan Wira Setiawan Zen Zulkarnaen