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Proceedings Conference on Marine Engineering and its Application
Published by Politeknik Perkapalan Negeri Surabaya
ISSN : -     EISSN : 26553333     DOI : https://doi.org/10.33863/cmea.v6i1.2426
Core Subject : Engineering,
Engineering Mechanical Engineering
The Proceedings of Marine Engineering and Its Application (CMEA) is an open-access publication, allowing global access for readers to publish, read, download, cite, and share the content freely. CMEA focuses on the dissemination of original ideas, innovative research, and practical developments contributed by scientists and engineers from both academic and industrial backgrounds. The journal welcomes a wide range of submissions, including theses, research articles, and review papers, covering topics in mechanical engineering, marine engineering, and related fields.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 109 Documents
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Analisa Getaran Pada Air Fin Cooler Equipment 203-E-003-M4 Akibat Misalignment Poros Samudra Budi Agung; Poernomo Heroe; Wirawan Husodo Adi
Proceedings Conference on Marine Engineering and its Application Vol 1 No 1 (2018): Conference on Marine Engineering and its Application
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v1i1.688

Abstract

This research performs vibration response analysis on fin cooler water system (AFC). AFC is a fan or blade equipment that rotates and driven by the motor. AFC have problems of high vibration value, so disrupting the production process. From the case obtained the purpose of research to get the value of vibration response that occurs on the shaft of water fin cooler and the influence of misalignment on the shaft. From the vibration data, analyzed the breakdown that occurred. To prevent vibration and breakdown, failure evaluation with Predictive Maintenance method is performed. In the research, the result of natural frequency is 26,77 rad/s and vibration velocity response is 0,0000392 mm/s. Vibration rate response with 0.05 mm shaft misalignment of 0,0000496 mm/s is still permitted by ISO Severity 10618-3 standard. The result of AFC reliability at 24 hours cause a reliability value of 0.995. Then the failure prediction of AFC component will occur at 15773,42 hours or 657 days, then result of the calculation of treatment time after further analysis using dynamic system predicted to be done within 1738 hours or 72 days.
KARAKTERISTIK HIDRODINAMIKA ALIRAN AIR DISEKITAR PROPELLER-RUDDER PADA BERBAGAI BENTUK PROFILE RUDDER DAN JARAK DENGAN PROPELLER Jihadin Ilmi Muhammad; Anis Mustaghfirin Muhammad; Santoso Emie
Proceedings Conference on Marine Engineering and its Application Vol 1 No 1 (2018): Conference on Marine Engineering and its Application
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v1i1.689

Abstract

Maneuverlability on ship design should be resolve all resistance effect to get standard velocity of moving the ship. The caracteristic of the rudder-propeller is very important to the performance to manuver. Distance of the rudder-propeller (Hugo,2016), shape of rudder profile (Liu,2016), is very pengaruhnya jika mengunakan tipe twin screw (muscari,2017). In this case to know velocity countour around of propeller rudder on the perintis ship 2000GT with distance variation rudder to propeller and rudder profile variation. Our porpose is get the best drag and lift for better manuvering. We design on 3D model with PropCad for Propeller, Maxsurf for Hull and Spaceclaim for rudder and assembly all component. Our Analys should in CFD and the process use ANSYS FLUENT to show hydrodynamic characteristic, In this final project we use real validation from sea trial results. From this model we get velocity approtimate with sea trial results validation. In sea trial results the velocity is 9-13.3 knot or 4.63-6.842 m/s. Otherwise in ANSYS simulation show 4.18-8.37 m/s from velocity 1ounter in Fluent with rotation propeller 424 rpm in the real condition design. After this we know the best rudder NACA profile is NACA0018 and the best distance is 25% Propeller Diameter.
ANALISA MODEL GETARAN MAIN ENGINE PADA KAPAL Kurnia Putra Iwan; Wirawan Husodo Adi; Abu Jamiin M.
Proceedings Conference on Marine Engineering and its Application Vol 1 No 1 (2018): Conference on Marine Engineering and its Application
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v1i1.697

Abstract

This article mainly describes vibration on ship’s main engine foundation. The high amplitude of vibration could damage ship’s hull structure and disturb ship’s passenger. The amplitude can be reduced by avoiding resonance between natural frequency and exciting frequency. Thereby in this article, the domain frequency is identified from Bode Diagram-based vibration source. A modelling from vibration data used as a reference to analyze domain frequency from vibration source. In data modelling a method called ARMA is used to determine the best model from every nodes main engine foundations, and then the model is analyzed using Bode Diagram. The first point of Bode Diagram’s results shows natural frequency of main engine foundation in the amount of 402 rad/s, 1360 rad/s, and 4120 rad/s on phase 180°, The second point of Bode Diagram’s results shows natural frequency of main engine foundation in the amount of 15.8 rad/s, 561 rad/s, 1760 rad/s, and 4010 rad/s on phase 180°, The third point of Bode Diagram’s results shows natural frequency of main engine foundation in the amount of 2140 rad/s and 9840 rad/s on phase 180°, and the fourth point of Bode Diagram’s results shows natural frequency of main engine foundation in the amount of 8260 rad/s on phase 180°.
EVALUASI SALURAN ISAP DEBU UNTUK SISTEM DUST COLLECTOR Destyandra Hermanu Ariandi; Endri Kusuma George; Moballa Burniadi
Proceedings Conference on Marine Engineering and its Application Vol 1 No 1 (2018): Conference on Marine Engineering and its Application
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v1i1.702

Abstract

In the process of loading and unloading low calorie coal / LRC (Low Range Calorie) there is often pollution of coal dust and self combustion. This is because of the character of LRC coal is easily destroyed, the dust is very light and easy to burn. To prevent the occurrence of fire hazard, it is attempted to break one of the danger chain by optimizing the dust collector. Therefore, the capability of suction dust collector should be increased so that the impact of dust can be reduced. The simulation shows that the dust inside the conveyor can not be inhaled because the velocity of the inlet conveyor is 2.9 m/s. While the suction collector force of 1.5 m/s causes the dust collector not to capture the dust completely. Therefore it is necessary to increase the velocity of the suction channel on the dust collector, by varying with ratios 3 and 4. Between the two variations the best suction is the ratio 3 with the suction rate of 9 m/s. Furthermore, there is a change in suction hood angle with angle variation of 14 degree, 17 degree, 20 degree to get mass concentration. All angle variation within suction speed 12 m/s. The simulation result with an angle of 14 degrees obtained mass concentration of 14940,23 mg/m,3 with an angle of 17 degrees of 3,05 mg/m3, and with an angle of 20 degrees of 0,000741 mg/m3. Of the three variations, the mass concentration obtained at the outlet is at least 20 degrees suction hood angle.
Evaluasi Numerik Kinerja Condenser PLTU Unit 8 di PT. POMI Paiton Suantara Darma Gede; Agus Setiawan Priyo; Moballa Burniadi
Proceedings Conference on Marine Engineering and its Application Vol 1 No 1 (2018): Conference on Marine Engineering and its Application
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v1i1.708

Abstract

Condenser modeling to determine the performance of industrial condensers on a steampower-based energy generator. The effectiveness of condenser is very important, so the condenserperformance needs to be maintained. The efficiency of condenser work directly affects theperformance of turbine steam, which is an energy generator in the system. The saturation pressurein the industrial condenser before to the plugging process has the highest value of 27790.0 (Pa). Themaximum condensation rate value in the industrial condenser before the plugging process is0.00529579 (Kg/m3.s). The saturation temperature in the industrial condenser after the pluggingprocess has the highest value of 300.0 (oK). The maximum condensation rate value in the industrialcondenser after the pluging process is 0.00519625 (Kg/m3.s).
PERENCANAAN PEMELIHARAAN DAN OPTIMASI BIAYA PERAWATAN PADA SISTEM UTILITY DENGAN METODE PREVENTIVE MAINTENANCE Zainal Arifin Muhammad; Haryono Edi; Arumsari Nurvita
Proceedings Conference on Marine Engineering and its Application Vol 1 No 1 (2018): Conference on Marine Engineering and its Application
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v1i1.710

Abstract

A company oil refinery based on condensate or petroleum using corrective maintenance type, one of them is in utility system. Corrective maintenance is less suitable with the course of production in a company it is continuous because the company can lose due to production stopped. Therefore, reliability analysis is performed using preventive maintenance method the scheduling check or inspection is used to prevent machinery or equipment from being damaged. Thus, the performance of the machine can run smoothly so that the production process is not disrupted and more efficient. Cost operational from 2011-2017 will be identified failure with FTA and FMEA. So that will get the value of reliability. Then performed the scheduling in accordance with the resulting MTTF value. Then the cost will be calculated to produce more efficient maintenance cost and the result more efficient cost is 30%.
Kajian Numerik Infiltrasi Flue Gas pada Komponen Lance Tube Soot Blower Tipe PS-SL Haidar Ali Yafie M; Shah Muhammad; Moballa Burniadi
Proceedings Conference on Marine Engineering and its Application Vol 1 No 1 (2018): Conference on Marine Engineering and its Application
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v1i1.711

Abstract

One failure that often occurs in the sootblower is that it breaks in the lance tube caused by corrosion. Based on the results of the root analysis the failure of the cause of corrosion in the component lance tube is caused by the occurrence of flue gas infiltration which results in blockage of the vent valve. This causes the remaining blowing medium cannot be pushed into the furnace and if left for too long will cause condensation in the lance tube. Condensation mixed with corrosive substances from flue gas can accelerate the corrosion rate on the lance tube. The simulation was carried out using the CFD (Computational Fluid Dynamics) method assisted by Fluent ANSYS 17.2 software. Corrosive substances in flue gas are modeled as inert particles of fly ash using DPM (Discrete Phase Model). To overcome the infiltration problem, angular variations were made in the converging section of the under-expanded nozzle on the lance tube. The concentration of DPM particles is compared to the cross section to find out how many corrosive particles enter the soot blower. Particle concentrations at angles of 10º 15º and 20º are 2,043 kg/m³, 0.515 kg/m³, 0475 kg/m³, respectively. While the mass fraction is 0.0069, 0.0017, 0.0016, respectively. The simulation results show a reduction in infiltration with the addition of an angle to the nozzle, with an angle of 20º showing the best results.
STUDI TEKNIS DAN EKONOMIS PENGGUNAAN MESIN DIESEL TRUK (LAND USE) SEBAGAI PENGGERAK KAPAL PANDU Firmansyah Syukron; Shah Muhammad; Santoso Emie
Proceedings Conference on Marine Engineering and its Application Vol 1 No 1 (2018): Conference on Marine Engineering and its Application
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v1i1.713

Abstract

Based on the operating data Pelindo III Surabaya province in 2017 there were 9,120 ships entering the port, indicating the total of ship visits in the port of tanjung perak surabaya has density. But, the reality of these conditions can not be separated from the lack of facilities and infrastructure on pilot boat. One of the factors is the age of the pilot engine which operates continuously so it needs to be replaced new engine. As a solution to improve the performance of pilot engines is to use truck diesel engine as the prime mover. References in using truck diesel engine as the prime mover are the rules & guidelines from BKI with conditions on the ship have horsepower under 500 hp. This final project aims to analyze the technical study of the use of truck diesel engine that includes how much power the engine, size dimension of engine, the supporting system of the engine, total weight of the engine and calculation of economic costs as needed. Stage of the planning process is calculation of the power engine, selection of the engine that will be used, drawing of the supporting system, calculation of cost. Results of this study show that technical point the use of a truck diesel engine as a prime mover on pilot boat still feasible with engine power of 222 hp, dimensions of the engine in accordance with the foundation, adjustment of support system, weight of engine equal to 818 kg and economical value of benefit cost ratio equal to 1.99 so that truck engine feasible to be used.
ANALISA UNJUK KERJA PROPELLER TYPE MAU PADA KAPAL PERINTIS 2000 GT DENGAN VARIASI SUDUT SKEW DAN SUDUT RAKE MENGGUNAKAN METODE CFD Artha Akbar Jala; Muhadi Eko Muhammad; Gafur Abdul
Proceedings Conference on Marine Engineering and its Application Vol 1 No 1 (2018): Conference on Marine Engineering and its Application
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v1i1.714

Abstract

The construction of new ships has many aspects to be considered, one of which is the aspect ofplanning in the field of propulsion system. The Aspect of the propulsion system includes propeller designplanning. Propeller is one of the important aspects that must be properly planned so that the ship can reachthe maximum speed. Speed on the ship is inseparable from the good propeller design in order to get maximumperformance from the ship propeller movement. The purpose of this research is to know the maximumpropeller performance from 24 models of MAU type propeller variation with variable of skew angle variationand rake angle. The calculation of Ship resistance is 105,705 KN. The results of this study shows a propellermodel with a skew angle variation of 45 ° and rake angle 0 ° has the highest thrust value of 119,447 KN. Thelowest torque value is generated on the propeller model with a skew angle variation of 10 ° and a rake angleof 15 ° at 20.534 KN m. And the highest efficiency value is generated on propeller model with skew anglevariation 10 ° and rake angle 0 ° equal to 56,33%. Propeller model that has the maximum performance is apropeller model with skew angle variation of 10 ° and rake angle 0 ° because it has the highest efficiencyvalue that is equal to 56,33%.
PENGARUH TEKANAN INJEKTOR DAN TEMPERATUR BAHAN BAKAR MINYAK JELANTAH TERHADAP UNJUK KERJA MOTOR DIESEL 4 LANGKAH 1 SILINDER DENGAN BEBAN 2000 WATT Zaenal Fanani Kresna; Sidi Pranowo; Haryono Edi
Proceedings Conference on Marine Engineering and its Application Vol 1 No 1 (2018): Conference on Marine Engineering and its Application
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v1i1.715

Abstract

The use of petroleum fuel is currently higher. Although there have been many studies of biodiesel, but in the production process requires lot of money and complicated production process. Therefore, this is used waste cooking oil as fuel. This study is conducted to get optimum injection pressure and fuel temperature when use waste cooking oil as fuel. The aims is to know how much effect of injector pressure and fuel temperature of waste cooking oil to the diesel engine performance. This research uses experimental method. There are 4 varations of injector pressure 130 bar, 140 bar, 150 bar, 160 bar. Variations of fuel temperature are 80 °C, 90 °C, 100 °C, 110 °C. The variation of load is 2000 watt at 1200 rpm, 1300 rpm , 1400 rpm, 1500 rpm. The result is the optimum injector pressure on variation 140 bar and fuel temperature of waste cooking oil is 90 °C. Trendline of SFC value when waste cooking oil used as fuel was lower than when used pertamina dex as fuel at various loads. Injector pressure and fuel temperature of waste cooking oil have contribution of 11,063% and 7,444% to performance of diesel engine.

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