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All Journal Jurnal Pendidikan : Riset dan Konseptual International Journal of Marine Engineering Innovation and Research

Hari Prastowo

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Author-ID : 3419541

Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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Articles

Design of High Rate Blender Hydraulic Power Pack Unit on Stimulation Vessel – Study Case Stim Star Borneo for Offshore Operations at Delta Mahakam area – East Borneo Hari Prastowo; Sutopo Purwono Fitri; Raja Oloan Saut Gurning; Sahrul Abidin
International Journal of Marine Engineering Innovation and Research Vol 1, No 2 (2017)
Publisher : Institut Teknologi Sepuluh Nopember

Application of Hydraulic Power technology in world industry today is still continue to increased. Not only in Industrial it’s self, but in Marine, Onshore and Offshore also use these technologies. Requirement of service in well services - Offshore Delta Mahakam region makes PT. Halliburton Indonesia as a Service Company increase his fleet service. The Type Stimulation Vessel Fleets - Stim Star Borneo is planned to improve the service unit of High Rate Water Pack (HRWP) with High Pressure Pump unit plus Gravel Pack Sand (GP) and High Rate Blender Unit. Blender High Rate is a unit tubular mixing blender driven by hydraulic power, motors blender, sand screw, pump suction and discharge pump that’s is installed unity. For that The authors will plan system, calculation and specifications of Hydraulic Power Pack Unit for High Rate the Blender. Calculations start from of Operasional Requirement Conditions, and continued with Design Block Diagram, P & ID, and also calculations of systems such as Head, RPM, Pipe Diamater, Pipe Thickness, Main Hydraulic Pump, Reservoir Tank and Cooler. Where The Requirement of Hydraulic Main Pump Power is 950 kW with Electric Motor as prime mover 950 kW. The final result of the design is show as Layout and Detail drawing in attachment.

Technical Analysis Ballast Water Treatment By Using Economizer Utilizing Main Engines Exhaust Heat To Comply With International Ship Ballast Water Management At Mv. Leader Win Hari Prastowo; Djoko Paritono Widodo; Semin .; Wiwin Rohmawati
International Journal of Marine Engineering Innovation and Research Vol 1, No 2 (2017)
Publisher : Institut Teknologi Sepuluh Nopember

Based on the International Ballast Water Management regulations (IBWM), waste water ballast itself has the attention of some researchers to reduce the amount of waste species present in the ballast water with a variety of methods, as of biological, physical, mechanical, and chemical. The decision-making tools such as ballast water heater, flow-through system and others where possible these tools can minimize waste species in ballast water at a certain temperature or pressure of the flow according to the calculations. This study was aimed to calculate and analysis the effectiveness of the system treatment between Option 1 (Economizer & Bundle) and Option 2 (Economizer & Heat Excharger) then it will compare. First option is using economizer and bundles to transfer a heat from a source heat of exhaust gas then medium by thermal oil circulated. The second option is using economizer and heat excharger where a same heat source , but sea water from ballast tank sirculated to heat excharger. And from economizer to heat excharger is using thermal oil as a heat medium. For all calculation and anaalysis is using softwere HTRI. First option having a duty 2.503 MegaWatts at economizer and 1.9567 MegaWatts at bundles. Over design 2.01% at Economizer and 7.1%5 at bundles. Pessure drop 63.287 kPa at thermal oil after economizer and 68.196 kPa after bundles. Treatment time to this option is 44.424 hors. Second option having a duty 3.38 MegaWatts at economizer and 3.1227 MegaWatts at heat excharger. Over design 5.85% at Economizer and 3.49%5 at heat excharger. Pessure drop 38.697 kPa at thermal oil after economizer and 28.476 kPa after heat excharger. Treatment time to second option is 42.03 hours. Option 2 (Economizer & Heat Excharger) is more optimum than option in analytical techniques. By analysis of treatment system, are expected this thesis can be applied to either the MV. Leader Win Vessel to comply with the operational needs according to standard employability.

HAZOP Study and SIL Verification of Fuel Gas System in ORF Using IEC 61511 Standard and FTA Method Nurhadi Siswantoro; Dwi Priyanta; Afanda Dwi Ragil Risnavian; M. Badrus Zaman; Trika Pitana; Hari Prastowo; Semin Semin
International Journal of Marine Engineering Innovation and Research Vol 7, No 1 (2022)
Publisher : Institut Teknologi Sepuluh Nopember

Safety is an important aspect of the industrial process. Failure of system and mechanism endanger both human and environmental safety. Safety is obligated to be implemented precisely and thoroughly to prevent failure consequences. One of the preventive implementations is to map out safety devices in the form of SIS (Safety Instrumented System) and other layers of protection. However, to acknowledge this safety device performance used SIL (Safety Integrity Level). This final research is intended to analyze Fuel Gas systems on Onshore Receiving Facilities (ORF). HAZOP (Hazard Operability Study) as process hazard analysis with deviation during the operation so that the risk level is known. SIL verification towards SIL target is SIL-2 refer to IEC 61511 standards by FTA (Fault Tree Analysis) method. From the HAZOP study can be concluded that over-pressure becomes a top hazard to all nodes due to the most severe consequences, the highest likelihood (medium risk). The calculation result of PFDavg is Node 1 (Fuel Gas Scrubber V-6060) is 6,22E-03, Node 2 (Fuel Gas Filter Separator S-6060A) is 1,24E-03, Node 3 (Fuel Gas Filter Separator S-6060B) is 1,24E-03, Node 4 (Fuel Gas Superheater E-6060) is 1,21E-03, and Node 5 (Instrument Gas Receiver V-6070) is 2,23E-03. The conclusion of this research shows that five components of the Fuel Gas System fulfill the SIL-2 target, therefore, doing a re-design to add a safety device is unnecessary

Components Acquaintance of Fuel Oil System Using Virtual Reality Application Hari Prastowo; Trika Pitana; Gusti Ngurah Putu Wibhu Ary Martha
International Journal of Marine Engineering Innovation and Research Vol 5, No 4 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Indonesia is known as the biggest archipelagic nation on the planet and is between two significant seas. In a roundabout way, Indonesia has tremendous regional water when contrasted and the land territory itself. With this, obviously, it tends to be said that Indonesia has colossal potential in the oceanic area, particularly since the Indonesian sea domain has consistently been a worldwide transportation path. This potential should be used ideally by this country, considering the mechanical advancement in Indonesia itself can be supposed to be very quick. Innovation that is utilized carefully and applied to the sea world can give Indonesia benefits for a few areas, for example, the economy, industry, and even schooling. Innovation that can be used in the oceanic world, particularly in the field of transportation is PC illustrations innovation, which in its application can be utilized during the time spent to plan, fix and support, reproductions and preparing for training and others with the 3D display. Virtual Reality (VR) is a counterfeit world or can be said as a computerized world where everything in there is the consequence of representation made utilizing 3D innovation from the PC. Virtual Reality permits us to cooperate and encounter encounters that are practically like this present reality. The reason for this exploration or the last task is to use innovation that is growing quickly well in the learning cycle in the oceanic world. With Virtual Reality, it is conceivable to make new learning strategies for training, particularly in the presentation of segments of the fuel oil framework on the ship. Because of a few restrictions confronted when mentioning direct objective facts to the ship, including authorization or admittance to enter the ship, time is restricted. Along these lines, it is normal that utilizing Virtual Reality can help the learning cycle for training by making an application that can be utilized in perceiving and understanding the segments of the fuel oil framework on a ship.

Damage Analysis of Elbow Fitting at Condenser Air Conditioning Cooling System Hari Prastowo; Irfan Syarif Arief; Hamzah Fansyuri
International Journal of Marine Engineering Innovation and Research Vol 1, No 4 (2017)
Publisher : Institut Teknologi Sepuluh Nopember

Elbow fittings is one type of fitting on the piping installation that serves to change the flow direction. With the sudden flow of changes, it will affect the physical condition of the elbow. The flow changes in the elbow will result in changes of flow velocity that affect wall of elbow, the condition will cause erosion corrosion phenomenon. Erosion corrotion is a type of corrosion that uses a mechanical process through the relative movement of the flow and metal. Corrosion erosion can also be caused by impingment corrotion or very rapid flow movement. This study aims to determine the cause of damage elbow by using a CFD simulation and troubleshooting by adding a Vortex Generator or a installed disturber system in the pipeline installation and simulating it again. From the results of research conducted that elbow damage caused by high flow velocity that concerns the outer elbow. The addition of Vortex Generator is proven to be used to reduce excessive flow velocity on erosion-corroded parts. According to the results of the investigation the placement of the most efficient vortex generator if placed at a distance of 0.1 R from elbow inlet.

Flooding Causes Analysis in The Engine Room of KM. Nusantara Akbar Trika Pitana; Hari Prastowo; Muhammad Badrus Zaman; Aleix Nurwahyudi; Rachmat Gunawan
International Journal of Marine Engineering Innovation and Research Vol 1, No 2 (2017)
Publisher : Institut Teknologi Sepuluh Nopember

The study analyzes about the cause of the leak in KM Nusantara Akbar’s engine room. However, this research is focus on leakage caused by shaft deflectio From the field data provided by the KNKT, know the cause of the leak is packing driven by a shaft deflection and therefore can not hold the rate of water. Analysis was done by a review of the technical and non-technical factors, because the scene of the ship accident was not purely due to technical factors but also non-technical factors. The first step is analyzing the ship document, such as the certificate of ship from classification, incident reports, docking report, ship crew certificates and other ship document. Then on the next step, the evidence that has been obtained from the analysis of the documents related to the ship sail is use to make the analysis using 5 whys method to looking for the root cause. According to the analysis that has been done, the technical cause of the leak vessel caused by system shafting system is reconditioned flange bolts that have been damaged and the addition of flax on the bearing shaft has to cope without straightening axle deflection itself. While the Autodesk Inventor 3D modeling software obtained bolt broken because the act force is 10782.31 N with the shear stress 2.230 MPa, while the maximum force in the normal load is 9.434,531.N with shear force 1,951 Mpa. Then from the cause from non-technical factors are equipment / spare part to overcome the failure of shafting system is very less, the workplace is dirty and uncomfortable and happened miss communication between the crew in the engine room to overcome the leakage.

Meningkatkan Hasil Belajar IPS dengan Model Pembelajaran Snowball Throwing pada Kelas XII APh 4 SMKN 3 Blitar Hari Prastowo
Jurnal Pendidikan : Riset dan Konseptual Vol 5 No 1 (2021): Volume 5, Nomor 1, Januari 2021
Publisher : Lembaga Penelitian dan Pengabdian Universitas Nahdlatul Ulama Blitar

Rendahnya hasil belajar yang dicapai siswa disebabkan antara lain karena aktivitas belajar siswa masih sangat kurang, sehingga prestasi belajar yang dicapai rendah. Selain itu, penggunaan metode pembelajaran sedikit banyak masih menggunakan metode konvensional (teacher centered) yang menjadikan siswa kurang aktif dalam proses pembelajaran. Penelitian ini bertujuan mendiskripsikan penerapan pembelajaran IPS melalui Model Pembelajaran Snowball Throwing di kelas XII Aph 4 SMK Negeri 3 Blitar dan mengetahui peningkatan hasil belajar IPS di kelas XII Aph 4 SMK Negeri 3 Blitar. Penelitian yang dilakukan adalah Penelitian Tindakan Kelas (PTK) yang dilakukan dalam dua siklus. Setiap siklus dilakukan perencanaan, pelaksanaan tindakan, observasi dan refleksi. Setiap siklus 2 pertemuan. Instrumen yang digunakan adalah RPP, tes dan observasi. Dari hasil analisis didapatkan bahwa hasil belajar siswa mengalami peningkatan dari siklus I sampai siklus II, yaitu siklus 1 jumlah nilai rata-rata kelas 74,5 dan siswa yang memenuhi KKM sebanyak 20 siswa atau 71%. Pada siklus 2 jumlah nilai rata-rata kelas 78 dan siswa yang memenuhi KKM sebanyak 25 siswa atau 91%. Kesimpulan dari penelitian ini adalah : 1). Penerapan model pembelajaran snowball throwing berjalan lancar, dan 2). Hasil belajar IPS mengalami peningkatan yang signifikan.

Co-Authors Afanda Dwi Ragil Risnavian Aleix Nurwahyudi Djoko Paritono Widodo Dwi Priyanta Gusti Ngurah Putu Wibhu Ary Martha Hamzah Fansyuri Irfan Syarif Arief M. Badrus Zaman Muhammad Badrus Zaman Nurhadi Siswantoro Rachmat Gunawan Raja Oloan Saut Gurning Sahrul Abidin Semin . Semin Semin Sutopo Purwono Fitri Trika Pitana Wiwin Rohmawati

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