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All Journal International Journal of Renewable Energy Development TEKNIK KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Department of Naval Architecture Sinergi Jurnal Rekayasa Mesin JURNAL INTEGRASI Jurnal Rekayasa Hijau Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi JURNAL SAINS DAN TEKNOLOGI MARITIM Warta Penelitian Perhubungan International Journal of Marine Engineering and Applications

Eko Sasmito Hadi

Departemen Teknik Perkapalan Fakultas Teknik Universitas Diponegoro - Semarang

Author-ID : 272150

Aerospace Engineering Agriculture, Biological Sciences & Forestry Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Transportation Other

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Desain Dan Analisa Turbin Tipe H-Rotor Guna Meningkatkan Output Daya Listrik Pada Perencanaan Pembangunan PLTAL Di Selat Pantar Malau, Karno R; Budiarto, Untung; Hadi, Eko Sasmito
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 15, No 1 (2018): Februari
Publisher : Department of Naval Architecture - Diponegoro University

Permintaan (demand) energi di Indonesia cenderung meningkat pesat sejalan dengan pertumbuhan ekonomi dan pertambahan penduduk. Sebagian besar kebutuhan tenaga listrik di Indonesia masih dipasok dari pembangkit listrik berbahan bakar fosil (tidak dapat diperbaharui), perlu pemanfaatan energi terbarukan sebagai solusi memenuhi kebutuhan listrik nasional, salah satunya PLTAL (Pembangkit Listrik Tenaga Arus Laut). Pada penelitian ini dilakukan studi desain dan analisa pemilihan turbin untuk PLTAL dengan membandingkan kelebihan dan kekurangan turbin jenis H-Rotor dengan beberapa variasi. Penelitian ini memvariasikan jumlah blade dan sudut serang blade dengan kecepatan arus laut masing-masing 2,5 m/detik, 2,75 m/detik dan 3,1 m/detik. Turbin yang digunakan adalah turbin dengan profil foil NACA 0015, panjang span 1600 mm, diameter turbin 1600 mm dan panjang chord turbin 300 mm. Penelitian ini menggunakan metode CFD dan perhitungan menngunakan empiris. Dari hasil penelitian iniÂ diperoleh turbin yang paling optimum untuk digunakan pada pembangkit listrik tenaga arus ialah turbin H-Rotor dengan jumlah blade 4 yang memiliki sudut serang 50. Nilai Output yang dimiliki sebesar 8,024 kW (pada 2,5 m/s), 10,632 kW (pada 2,75 m/s), dan 15,142 kWÂ (pada 3,1 m/s). Nilai CpÂ (Power Coeffcient) terbesar tiap kecepatan arus laut dimiliki oleh turbin dengan variasi jumlah blade 3 buah dengan sudut serang 5Â° sebesar 0,273 (pada 2,5 m/s), 0,271 (pada 2,75 m/s), dan 0,270 (pada 3,1 m/s). Sedangkan nilai Efisiensi (%) terkecil tiap kecepatan inlet dimiliki oleh turbin dengan variasi jumlah blade 2 buah dengan sudut serang 0Â° sebesar 12,4 % (pada 2,5 m/s), 12,237 %Â (pada 2,75 m/s), dan 12,04 %Â (pada 3,1 m/s).

KARAKTERISTIK KM. ZAISAN STAR AKIBAT PERUBAHAN MUATAN Samuel, Samuel; Hadi, Eko Sasmito; Sratudaku, Ario Restu
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 11, No 1 (2014): Februari
Publisher : Department of Naval Architecture - Diponegoro University

KM. Zaisan Star yang semula merupakan kapal general cargo dimodifikasi menjadi kapal pengangkut kendaraan (vehicle carrier) dengan penambahan geladak pada ruang muat dan diatas geladak utama. Penelitian ini bertujuan mengetahui nilai stabilitas dan kekuatan memanjang kapal dari 32 simulasi kondisi karena pengaruh pengisian geladak muat dan kondisi pelayaran kapal. Perhitungan dan analisa pada penelitian ini dilakukan dengan metode pendekatan rumus stabilitas dan kekuatan memanjang kapal yang terintegrasi pada perangkat lunak pekapalan yang mengacu standar IMO dan Rules BKI. Hasil analisa stabilitas menunjukkan nilai GZ terendah pada kondisi XXXI dengan 1,103 m sedangkan kriteria minimumnya 0,200 m. Nilai GM terendah pada kondisi XXXII dengan 1,160 m, sedangkan nilai minimumnya 0,150 m. Pada analisa kekuatan memanjang diperoleh nilai tegangan geladak kondisi air tenang 0,009 N/mm2, sagging 0,013 N/mm2 dan hogging 3,40 N/mm2 serta tegangan alas kondisi air tenang 0,020 N/mm2, sagging 0,029 N/mm2 dan hogging 7,825 N/mm2, nilai tersebut tidak melebihi nilai tegangan ijin kapal 188,815 N/mm2. Perhitungan modulus penampang menunjukkan nilai modulus penampang geladak 831,990 m3 dan alas 1913,974 m3, nilai tersebut memenuhi nilai modulus minimum kapal 0,1824 m3. Perhitungan momen inersia menunjukkan nilai momen inersia sebesar 2899,540 m4, nilai ini memenuhi nilai minimum momen inersia kapal 0,4103 m4.

ANALISA PENGELASAN MILD STEEL (ST.42) DENGAN PROSES SMAW, FCAW DAN SAW DITINJAU DARI SEGI KEKUATAN DAN NILAI EKONOMIS Hadi, Eko Sasmito
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 6, No 2 (2009): Juni
Publisher : Department of Naval Architecture - Diponegoro University

In this era, the growth of welding technology is very fast, especially in newship building and repairing ship construction. The welding work often rise the delaying which cause of lost of cost, time and material consumables. Developing of speed and efficient welding work have to choose the welding methode to be suitable with site condition. This research will explain the differences of three welding methods consist of SMAW, FCAW and SAW weld methode based on strengthening and economic value. The strengthening of welding result are tested by dectructive test consist of tensile, bending and impact test. It carried out the calculation of weld cost per kgs, weld speed per meter and electrode consumption to know the differences of economic value for all that welding material. The test result showed that no differences of tensile strength between SMAW, FCAW and SAW welding methode, max. 1 %, but SMAW weld methode have yield strength 4 % better than FCAW weld methode and 14 % better than SAW weld methode. FCAW weld methode ductility value 34 % mare than SMAW weld methode and 37 % more than SAW weld methode. FCAW weld methode have economic value 67 % more than SMAW weld methode and 42 % more than SAW weld methode. SAW weld methode on horizontal weld position have speed 63 % more faster than FCAW weld methode and 72 % more faster than SMAW weld methode. SAW weld methode have electrode consumption 6 % more efficient than FCAW weld methode and 50 % more efficient than SMAW weld methode.

STUDI HULL FORM KAPAL BARANG-PENUMPANG TRADISIONAL DI DANAU TOBA SUMATERA UTARA Manik, Parlindungan; Hadi, Eko Sasmito
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 5, No 3 (2008): Oktober
Publisher : Department of Naval Architecture - Diponegoro University

This thesis concerns to the study of traditional cargo-passenger ship's hull in Danau Toba, North Sumatera. Most of the ship in that territory is built in a traditional method by the community near the lake and with the descending ancient method for years. The re-drawing process of the ship is using Delftship software. As a result of this study report, this software could give the data of hydrostatic, resistance, stability and the rolling period and also the ship moving in water. This information could be used as a suggestion to make the mutual standard of the ship's body form which is appropriate to the condition in Danau Toba. According to the calculation and analysis by using Delftship software, it could give the result that suitable with the main dimension ratio of KM. Horas Ronita Nainggolan. KM. Horas Ronita Nainggolan is classified as a harbor tug boat based on her main dimension. She has the maximum speed at 8,7 Knots, there is increased ship resistance for 0,02025 % KN at 8 Knots. In the rain condition, she is not really good in stability with the passengers and freights are near the fore peak of the ship (the position of the ship is almost in even keel), but she has a better stability in sunny weather. At the ship moving case, the greatest heaving motion is responded by the ship in the condition of slight water wave heading 135Â°, greatest pitching motion is responded by the ship in the condition of water wave heading 45Â°, and the greatest rolling motion is responded by the ship in the condition slight water wave heading 45Â°

DESIGNING OF SIMULATION FOR ENGINE ROOM KM. SINABUNG WITH CONTROL MONITORING WEB SERVER BASED BY WIRELESS NETWORK AND POWER LINE COMMUNICATION Hadi, Eko Sasmito; Adietya, Berlian Arswendo; S.P, Firdaus
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 10, No 2 (2013): Juni
Publisher : Department of Naval Architecture - Diponegoro University

Engine room monitoring control system is monitoring and controlling main engine and auxiliary engine from long distance by powerline communication network and wireless network to ease the operator in operating the ship and save operational cost. To prevent error in programming the main engine and auxiliary engine, a simulation using instrument software is needed to know the machine characteristic. After simulation result fulfills the requirement which is approached the value of test record, it can be applied to the real machine. In this study, someÂ steps were done such as: getting know type of main engine and auxiliary engine which performance will be simulated and programmed, getting test record of main engine and auxiliary engine, getting know how the main engine and auxiliary engine work, making simulation of main engine and auxiliary engine work system, doing monitoring control simulation by powerlineÂ Â communication and wireless network, comparing the results between simulation and test record of main engine and auxiliary engine. Engine programming can be set after simulation result meets the requirement. Result of simulation fulfills the requirement, the difference values between machine simulation using software instrument and test record of main engine and auxiliary engine are around 1%-2%. If engine room monitoring control system by wireless and powerline communication is applied in the ship, the ship owner will get advantages because it will prolong ship durability and can monitor operasional of main engine or Auxiliary engine from long distance ; while the operator will be easier in operating the ship. The disadvantage is only the higher cost

ANALISA KEANDALAN SISTEM BAHAN BAKAR MOTOR INDUK PADA KM. LEUSER Hadi, Eko Sasmito; Budiarto, Untung
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 5, No 2 (2008): Juni
Publisher : Department of Naval Architecture - Diponegoro University

Fuel oil system is one of the vital main engine supporting systems of MV. Leuser because this system is directly influence the main engine performance. The failure of fuel system should be the main engine shut down. The bigger affect was the ship could not be operated so the financial lost would be occurred. The aim of the research is an analysis the fuel system by approximation on reliability based. An analysis of the system was using qualitative and quantitative approximation. Qualitative analysis could be achieved by the Failure Mode and Effect Analysis (FMEA) and the Fault Tree Analysis (FTA). The quantitative analysis could be achieved by the Monte Carlo simulation. The resulted of the research, severity components such as filter, separator, transfer pump and booster pump was obtained by the severity classification and failure probability. The simulation would be achieved the value availability at 0.97 and the value of MTTFF (Mean Time to First Failure) is 2423.8363 hours. The simulation used some scenarios, the system availability would be more decrease if there were more stand by components occur the failure in the one of the components at 0,893.

ANALISA SIFAT MEKANIK PADUAN ALUMINIUM SEBAGAI RANGKA JENDELA KAPAL DI PERUSAHAAN PENGECORAN LOGAM CV. SETIA KAWAN KOTA TEGAL DENGAN CETAKAN TIDAK PERMANEN Kiryanto, Kiryanto; Sasmito Hadi, Eko; Ansori, Muhammad
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 9, No 1 (2012): Februari
Publisher : Department of Naval Architecture - Diponegoro University

Shiping components necessary are needed nowadays. For that many minor industry develop. One of them is CV. Setia Kawan Tegal City which is one of central metal cast company which main product is ship component but product that produced by CV. Setia Kawan has not comply but JIS or SNI standart. Based on that, this final project purposed to now tensil test and material composition include from the material that produced by CV. Setia Kawan. Materials which used is pure elbow Aluminium, Aluminium Plat, brake Canvas and used pan. Those materials must pass some process before tested, melting process, casting process than extracting from mould with use permanent mould. After that the next process which done is tensil test. Beside tensil test material also pass material composition test. Tensil test result shows that Aluminium and Break canvas has the best materials quallity and fullfell JIS and SNI standart about 13,18 kg/mmÂ² for Aluminium Plate with used pan fusion about 10,46 kg/mmÂ². Where as for elbow Aluminium and Aluminium Plate fot it about 8,84 kg/mmÂ² and 10,33 kg/mmÂ². For the materials composition test result with passed melting process, elbow aluminium and brake canvas and Aluminium Plate with used plan have fullfelled standart both JIS and SNI which each content about 92,46% and 99,43%. For elbow Aluminium and Aluminium Plate each content about 99,43% and 98,46% but material give not pass standart. Where as pure materilas has not passed melting process for Aluminium and Aluminium Plate doesnâ€™t meet standart both have its content 98,33% and 99,59%. For breake canvas and used panthose about materials comply SNI and JIS standart with content 84,68% and 97,66%.

PEMBERDAYAAN KELOMPOK NELAYAN TANGKAP TRADISIONAL DI KAWASAN PESISIR PANTAI MORO DEMAK DALAM UAPAYA PENINGKATAN PRODUKSI DAN PENGHEMATAN BBM Hadi, Eko Sasmito; Mulyatno, Imam Pujo; Santosa, Ari Wibawa Budi
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 12, No 3 (2015): Oktober
Publisher : Department of Naval Architecture - Diponegoro University

Mitra dari kegiatan pengabdian masyarakat yang merupakan kelompok nelayan yang tergabung dalam KUD Mino Utomo dan paguyuban nelayan kabupaten Demak. Karya utama dalam kegiatan ini adalah alat pemanggil ikan berupa lampu celup dengan dilengkapi solarsel sebagai sumber energi alternatif pengganti BBM yang ramah lingkungan. Peralatan ini dirancang sebagai lampu atraktor yang dapat meningkatkan hasil tangkapan dan mengurangi biaya operasional. Lampu tersebut dapat di turunkan ke dalam air sampai kedalaman tertentu. Sistim pencahayaan ikan menggunakan lampu listrik dalam air bertenaga surya yang telah dibuat teridiri dari : satu paket lacuba terdiri dari 2 (dua) buah lampu, 1 (satu) buah converter, kabel masing-masing untuk 1 (satu) lampu sepanjang 15 meter, 1 (satu) buah charger, untuk pengisian accu.Dengan adanya alat ini nelayan tidak tergantung pada bahan bakar minyak bumi (BBM), dapat menekan biaya operasional dan akhirnya dapat meningkatkan kesejahteraan nelayan.

PENGEMBANGAN SISTEM INFORMASI BERBASIS KOMPUTER DALAM MENUNJANG KEGIATAN PENJADWALAN REPARASI KAPAL DI GALANGAN PT. DOK DAN PERKAPALAN KODJA BAHARI (PERSERO) UNIT PRODUKSI JAKARTA II Hadi, Eko Sasmito; Manik, Parlindungan
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 5, No 3 (2008): Oktober
Publisher : Department of Naval Architecture - Diponegoro University

Dalam dunia industri maritim, proses penjadwalan reparasi kapal adalah kegiatan rutin yang selalu dilakukan sebelum kapal masuk dan di reparasi di galangan. Selama ini proses permohonan pekerjaan reparasi kapal di galangan pada umumnya masih dilakukan secara manual dengan birokrasi yang rumit, dimana pihak owner harus mengirimkan Surat Permintaan Perbaikan (Docking Tahunan) dan melengkapi segala macam dokumen serta daftar reparasi yang dibutuhkan kepada pihak galangan. Pihak galangan kurang optimal dalam pemantauan dan pengendalian permohonan reparasi kapal, karena antara satu bagian dengan bagian lain masih saling terpisah dan belum terintegrasi, seringkali mengalami kesulitan untuk menentukan metode perencanaan proyek reparasi. Penelitian ini bertujuan untuk merancang dan membuat sistem informasi yang terintegrasi multiuser yang berbasis web yang sesuai dengan kebutuhan user untuk memudahkan proses pelayanan dan efisiensi operasional yang optimum. Pengembangan aplikasi dimulai dengan identifikasi kebutuhan sistem yang menghasilkan desain sistem, yang didefinisikan dengan Data Flow Diagram (DFD), Entity Relationship Diagram (ERD), Use Case Diagram. Implementasi aplikasi berdasarkan desain sistem diterapkan pada lingkungan web dengan MySQL dan PHP. Dengan adanya sistem informasi ini proses memasukkan data yang dibutuhkan dalam proses permohonan reparasi kapal oleh pihak owner dapat dilakukan dimanapun dan kapanpun, sehingga dapat menghemat biaya dan waktu. Selanjutnya pihak galangan dapat segera memproses untuk menentukan metode perencanaan penjadwalan proyek reparasi. Selain itu, inventarisasi informasi data pribadi owner, data ukuran utama kapal, data item yang akan di reparasi dari pihak owner ke pihak galangan tersimpan dalam database serta menghasilkan bermacam-macam laporan yang dapat dicetak maupun dilihat oleh user, sesuai dengan hak akses user tersebut.

PEMANFAATAN MATERIAL PLASTIK HDPE BEKAS DRUM KEMASAN SEBAGAI KULIT LAMBUNG PERAHU Amiruddin, Wilma; Hadi, Eko Sasmito; Kiryanto, Kiryanto
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 11, No 3 (2014): Oktober
Publisher : Department of Naval Architecture - Diponegoro University

The use of HDPE plastic as a result of packaging chemicals as subtitution forÂ wooden shell ofÂ a boat hull provides several advantages both technically and economically. Stock plastic material is relatively abundant, its price is relatively cheap, and long service life. The method used in the manufacture of HDPE plastic boat, include the preparation of materials and processing, assembly, and last is the finishing. Planning and manufacturing procedures governed by criteria which refers to the Basic Ship Theory. The end result after the ship was completed providing technical advantages in the form of increase in load capacity for boats of the same size with a wooden boat, of Â± 55%, better stability, B / T> 2, the estimated lifespan of over 10 years in the boat, the process of making relatively quickly and easily. These advantages can increase productivity boat craftsman, an increase in profits of up to Â± 56 % of the total profit per month

Co-Authors A.F. Zakki Abi Dimas Alfian, Abi Dimas Abner Herdian Permana Putra Achmad Kurniawan Adhi Paska, Adhi Aep Supirman Afdi Supriyonggo Nugroho Agus Setyawan Ahmad Azhar Ginting Ahmad Fauzan Zakki Ajib Wahab Purwanto Akhiruddin Akhiruddin Al Fahsan Al Fahsan Aldias Bahatmaka Alexius Bayu Setyoko Alif Fadhilah Amaytana Cindy Armela Andhi Kusuma Andhyka Cakrabuana Adhitama Andi Trimulyono Anugrah Firnandito Ari Wibawa Ari Wibawa B.S Ari Wibawa B.S Ari Wibawa Budi Santosa Ari Wibawa Budi Santosa Ari Wibawa Budi Santosa Ari Wibawa Budi Santosa Ari Wibawa Budi Santosa Ari Wibawa Budi Santosa ST, MSi Arie Prasetyo Ario Nugroho Prihutomo Ario Restu Sratudaku Aulia Ramadhan Kopayona Azhabul Hayatul Fajar Azniatu Fihliya Berlian Arswendo Adietya Berlian Arswendo Adietya Brata Wahyu Setya Budi Brian Haksa Nova Burhannudin Senoaji Buyung Vidiarto Caesar, Agung Al Citra Robiatul Adawiyah Deddy Chrismianto Deddy Chrismianto Dedi Budi Purwanto Desto Pradika Putra Dicky Darmawan Dimas Maulana Agung Pambudi Dito Adi Prassyeta Dwi Satria Fajar Efriananda Sabta Rizki Eka Heriyanty Eka Mellyana Nur Anggraini Elvira Dwi Gustiarini Fachry Ramadhan Fajrul Falah Rosid Firdaus S.P Frans Simanjuntak Ganang Adi Baskoro Ginanjar Baskoro Aji Giri Aditya Chandra J Good Rindo Hartono Yudo Hartono Yudo Haryadi, Ricky Tri Hendri Firman Hibob Faiz Firdaus Ibnu Fauzi Kenedy Ichsan Aditio Imam Pujo Mulyatno Imam Pujo Mulyatno Indradi Setiyanto Irvan Putera Samudera Jefri Harumbinang Joko Subekti Josua Siagian Juwanto Juwanto K Kiryanto K. Kiryanto Karnoto . Khoirul Anam Khoirul Ramadhan Kiryanto Kiryanto Kiryanto Kiryanto Kiryanto Kiryanto Lily Muzdalifah Luthfi Maslul Muttaqim M. Aji Luhur P M. Iqbal Maharani, Heslina Fifani Malau, Karno R Mita Ardiana, Mita Moh Nurdin Septiantono R Mohammad Nasikin Muhamad Zulkifli Muhammad Abdul Aziz Mufti Muhammad Ansori Muhammad Iqbal Muhammad Iqbal Muhammad Luqman Hakim, Muhammad Luqman Muhammad Raditya Daniswara Muhammad Rayandra Lubis Muhammad Rynaldi Muhammad Sidiq Mulyatno, Imam Pudjo Natanael Martian Dwi Sunarto Natanael Martian Dwi Sunarto Niko Aditya Kriswan Nizar, Vania Early Noprian Christy S Nugraha, Sandy Nurhali Nurhali Ocid Mursid Ojo Kurdi P. Boby Janurianto Parlindungan Manik Parlindungan Manik Parlindungan Manik Parlindungan Manik Parlindungan Manik Permana, Mohamad Fiqri Purnawan Adi Wicaksono Rachmat Assidiq Rais Yudanto Renggita Aan Rachmadani Restu Kuasa Reza Andrian Saputro Ridwan Rasoki Harahap Rifandi Aditya Ririh Sustiko Asih Rizka Azhari Yulistiawan Faruq Robby Munardi Roby Widiyanto Rolan Haris Ben Imanuel Purba, Rolan Haris Ben Imanuel Rosiana Dewi Saeful Huda Mursito Samuel Samuel Samuel Samuel Sarjito Jokosisworo Septaji Indrasahputra Siahaan, Batara Srijaya Ratu Solikhin Solikhin Tindaon, Aldy Sabat Tobing, Christabel Giovanny Toha Frans Soaloon Siregar Untung Budiarto Vina Widya Lestari Vita Agnindiyasari Wahif Indramana Wahyu Nugroho Mustikojati, Wahyu Nugroho Wasisto Haribowo, Wasisto Wicaksono, Ardhana Widyanto Widyanto Willma Amiruddin Wilma A Wilma A Wilma Amiruddin Wiranda, Ariiq Daffa Wiwit Wirawan Yohana Krisyanti Simanjuntak Zeinurrohman, Rangga Zippo Benediktus Sijabat

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