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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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Desain Ballast Water Treatment System Kapal Sesuai Standar IMO Naufal Adi Hidayah; Eko Julianto; Lely Pramesti
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2682

Abstract

The ballast water system are important to maintain ships’s stability during voyage especially when shipnot carrying any cargo. The exchange of ballast water were considered as the main cause of microorganism andbacterias spreading that damaging port water ecosystems. To prevent the damage from harmful microorganism andbacterias on ballast water discharge, in 2004 International Maritime Organization (IMO) established and adoptedBallast Water Management Convention (BWMC). Before complying with IMO BWMC standard, MT GunungGeulis’s existing ballast water system were evaluated and the result says that MT Gunung Geulis are not compatiblewith IMO BWMC standard because still using ballast water exchange method to manage their ballast water. Tocomply with IMO BWMC standard, MT Gunung Geulis need to added ballast water treatment system (BWTS). Basedon journal review to comparing BWTS treatment methods says that filtration + electrolysis method giving the highestefficiency on removing microorganism and bacterias from ballast water. BWTS unit installed on MT Gunung Geulishad three main equipment, filtration unit, electrolysis unit and neutralizer unit from Ocean Guard to be located onturbine and partial deck Filtration unit and electrolysis unit are operated on ballasting process and neutralizationunit injecting neutralizer on deballasting process..
Desain Sistem Pemadam Kebakaran Jalur Hydrant pada Galangan di Kalimantan Annas Firmansyah; Projek Priyonggo Sumangun; Lely Pramesti
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2684

Abstract

Shipyards have facilities that have the potential to cause fires because there is work that generatesheat and contains flammable materials. The existing hydrant system at the shipyard is still simple and does notcover the entire area. Therefore, it is necessary to plan a hydrant system that can cover all areas in accordancewith NFPA and SNI standards. Planning begins with determining the number and placement of hydrant pillars,pipe routing, head loss calculations, and pump selection. The pipeline requires 7.776 m of 8-inch pipe, and 6-inch pipe requires 1915.477 m of pipe. The total head losses obtained from the calculation at the farthesthydrant pillar is 217.426 m. The selected pump is a Wilo 150 GF with a pump head of 240 m and a capacity of1250 US GPM.
Studi Numerik Pengaruh Variasi Rasio Diameter Silinder Pengganggu di Depan Returning Blade Terhadap Coefficient of Power (CP) Turbin Angin Savonius Penambahan Fin Ryandika Aditya Pramanta; Priyo Agus Setiawan; Nopem Ariwiyono
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2685

Abstract

Experimental research on savonius wind turbine with additional fins and variouscircular cylinders have been carried out as an effort to improve the turbine performance.Further research is needed to validate experimental studies.Based on the problems above,numerical studies using 3-dimensional Computational Fluid Dynamics (CFD) method isneeded to determine coefficient of torque values. The turbine has the same diameter and heightof 0.4 meters with additional fins. The various diameter of circular cylinder used are ds/D =0.1; ds/D = 0.2; ds/D = 0.3; and ds/D = 0.4. Then the cylinder is placed at a distance of X =34 cm and Y = 10 cm. The final result is the turbine can reach the highest increase of 5.4% inits performance with ds/D = 0.4 with 0.389 coefficient of power (Cp).
Kajian Numerik Pengaruh Push dan Pull Velocity terhadap Pola Aliran Pada Downward Push-Pull Air Curtain Piero Wahyu Iskandar; Burniadi Moballa; Muh Anis Mustaghfirin
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2686

Abstract

Transmission of COVID-19 is still increasing in the world, such as in China andIndonesia. One of the reasons for the increasing number of positive cases of COVID-19 isthe occurrence of transmission from industrial clusters, the implementation of a minimumsocial distancing of 1 to 2 meters between workers is difficult to do. This is due to limitationsin layout, area, and industrial work systems. Thus, a system is needed to protect industrialworkers from potential exposure to COVID-19. One technology that has high potential to beapplied is air curtain. From these problems, this research will carry out an analysis of theoptimum push-pull discharge and air velocity, and the regime map for downward push-pullair curtain, the method used to carry out the analysis is Computional Fluid Dynamics (CFD)where the stages of the CFD process are preprocessing, processing, postprocessing. Thesoftware used to complete this final project is SALOME for the preprocessing,, OpenFOAMfor the processing, and for the postprocessing stage using ParaView. From the simulationresults that have been carried out, the results show that at a nozzle blow speed of 6,24 m/s,with a suction nozzle speed of 37,44 m/s, these are the optimum blow speed and suction nozzlevalues and are able to withstand droplet dispersion.
Studi Numerik Pengaruh Jarak Silinder Pengganggu terhadap Returning Blade pada Performa Turbin Angin Savonius Fin Mokhamad Prayitno; Priyo Agus Setiawan; Nopem Ariwiyono
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2687

Abstract

The performance of Savonius wind turbine has increased in the previous experimentalstudies with 1 additional fin and various disturbing cylinder distance in front of returning blade.Although the performance has increased, validation is needed through experiments . Therefore, furtherresearch is needed. The research uses Computational Fluid Dynamic (CFD) with 3-dimensional modelto obtain an increase on the turbine performance. In this simulation the solver chosen is pressure based with transient time mode. In the Savonius wind turbine simulation, the model used is the realizable k-epsilon model. Numerical method can validate experimental study. The turbine uses 1 additional fin with 40 cm in diameter and height. The variation of disturbing cylinder distance is S/d = 1.4 ; S/d =1.7; s/d = 2.0; s/d = 2.3 with wind speed of 5 m/s. Simulations are also carried out to determine thevalue of Coefficient of Power (Cp). The final result is there is 5,40% increase on the turbineperformance at the distance S/d = 1,7 , 5 m/s speed, and 1,0 TSR. The Coefficient of Power (Cp)simulation value is 0,389.
Desain Propeller Yamaha Saltwater Series II Menggunakan Metode Interpolasi Muhammad Rifqi Zulfahmi; R Dimas Endro Witjonarko; Lely Pramesti
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2688

Abstract

The challenge when using an outboard engine is that all parts used have been packaged bythe manufacturer, so if there are damaged parts such as a bent propeller, you must buy from anauthorized distributor. In areas that are far from reach, it takes a lot of time and money to get partsofficially. Therefore, a research was conducted as an alternative effort to develop manufacturingtechnology, especially propellers. So that people can choose several options regarding the productsused. To get the same performance and characteristics, manual measurements are taken. But bymeans of measurement alone is not enough to make the image similar to the original, it is necessaryto make improvements with the interpolation method as an approach in drawing the propeller bladeprofile. After the research this method is very effective in drawing the shape of the propeller profilethis is evidenced by the interpolation method the resulting shape looks smoother. In addition, severalother aspects were also measured for propeller similarity. The results of the measurements obtained ablade area value of 19800 mm², a rake angle of 22°, a skew angle of 40°, a root length of 150 mm anda root angle of 90°.
Studi Numerik Pengaruh Variasi Rasio Diameter Silinder Sirkular Terhadap Performa Turbin Angin Savonius Overlap Yuanditma Pranaja Kastara M; Emie Santoso; Priyo Agus Setiawan
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2689

Abstract

- Experimental research on the performance of savonius wind turbine has been carried outwith additional overlap ratios and various diameter ratio of circular cylinder in front of returningblade. The validation of experimental results can be displayed by making numerical study researchwith Computational Fluid Dynamics (CFD) method. This method can also be used to obtaincoefficient of power. Numerical studies were conducted using savonius wind turbines with 0,3 overlapratio and also 0,4 meter of diameter and height. The various of circular cylinder diameter is ds/D =0,3; 0,4; 0,5; and 0,6. The wind speed is set at 5 m/s. The highest increase of performance savoniusoverlap wind turbines is 3,51% in the variations of ds/D = 0,4 to savonius overlap wind turbineswithout circular cylinder with 0,324 coefficient of power (Cp) at Tip Speed Ratio 1.
Penerapan Metode RCM (Reliability Centered Maintenance) Pada Sistem Bahan Bakar (Fuel Oil System) Kapal TB.BLORO 10 Mukhsin Al Amin; Nurvita Arumsari; Endah Wismawati; Icuk Kurniawan
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2690

Abstract

- Main Engine is one of the important compartments on the ship which is located in theengine room. Has a function as a propulsion driver and as the main propulsion engine of theship. With such an important position, scheduling maintenance on the Main Engine is veryimportant to do. Because if the main engine is not running, then there will be no operation ofthe propulsion system on the ship and it will definitely be very detrimental to the ship owner.This final project attempts to answer these demands by creating a maintenance schedule for themain engine fuel system. In addition, the total operating costs which consist of running,maintenance and downtime costs will also be taken into consideration in determining themaintenance time. In this research, scheduling of main engine maintenance is carried out usingreliability centered maintenance which is used to select, develop, and create alternativemaintenance strategies based on operational, economic and safety criteria. Based on the failureanalysis using Failure Mode Effect Analysis, several component failures were identified, suchas the fuel injection pump (worn drive shaft, worn governor plunger, fuel gear pump lackinglubrication), injector nozzle (damaged nozzle tip, burrel plunger seal, M/E performance wasnot optimal ), gate valve (nut valve difficult to operate, disk valve has a leak, gasket on valve),fuel oil transfer pump (bearing wear, pump impeller corrosion, shaft corrosion), swing checkvalve (crusted disk valve, valve gasket), fuel filter (dirty fuel filter), quick closing valve (crusteddisk valve, gasket valve).
ANALISIS PERBANDINGAN PERFORMANCE PADA FOUR STROKE ENGINE MENGGUNAKAN MULTI-FEEDSTOCK BIODIESEL (MINYAK KELAPA SAWIT, MINYAK IKAN SALMON, EKSTRAK KULIT MANGGIS) DENGAN MULTI- FEEDSTOCK BIODIESEL (MINYAK CASTOR, MINYAK LEMAK SAPI, MINYAK CANOLA) Wildhan Zaky Arsyada; Aminatus Sa'diyah; Muhammad Shah
Proceedings Conference on Marine Engineering and its Application Vol 7 No 1 (2024): 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.v7i1.3587

Abstract

Petroleum-derived fuel oil (BBM) is the main source of energy The large use of petroleum makes petroleum supplies diminish, this is because petroleum has a very important role in the field of transportation and industry. Biodiesel, as an environmentally friendly alternative, is attracting attention with its increasing trend of use. Although biodiesel has many advantages such as being environmentally friendly and reducing emissions, it also has a negative impact on engine performance. Studies show that biodiesel can affect emission characteristics and engine performance, especially when compared to conventional diesel fuel. Therefore, this study addresses the performance comparison of multi-feedstock fuels, such as (palm oil, salmon oil and mangosteen peel extract) with multi-feedstocks, such as (castor oil, tallow oil and canola oil), blended with HSD (Pertamina dex) to become B20, B35 and B100 fuels. The fuels were tested on a four stroke diesel engine with 1000 watts, 2000 watts and 3000 watts of lamp loading with engine speed variations from 900 rpm to 1000 rpm, providing a deeper understanding of diesel engine performance and efficiency.

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