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All Journal International Journal of Marine Engineering Innovation and Research e-NARODROID JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Jurnal Ilmiah Teknologi Informasi dan Robotika Jurnal Pengabdian Masyarakat : Pemberdayaan, Inovasi dan Perubahan Frontiers in Community Service and Empowerment Jurnal Cakrawala Maritim International Conference on Maritime Technology and Its Application Proceedings Conference on Marine Engineering and its Application
Aminatus Sa’diyah
Politeknik Perkapalan Negeri Surabaya
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RANCANG BANGUN SISTEM OTOMATISASI PADA CUSTOM ICE CRYSTAL MACHINE Mokhamad Rizki Febriansyah; Muh Anis Mustaghfirin; Aminatus Sa’diyah
Proceedings Conference on Marine Engineering and its Application Vol 3 No 1 (2020): Conference on Marine Engineering and its Application
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Ice crystal is a daily needs for consumables, so that it needs an inovation that serves as asupport to sover the needs of ice crystal. For the performance of tools needed automation made tofacilitate the performance of this ice crystal machine, with the main drive of the DC motor made forthe ups and downs of the plate as a mold for this ice crystal, then in the automation writer usesArduino as a micro-controller that will capture the DS18B20 sensor. with a DS18B20 sensor that cancapture sensors below -55 ? so that when the ice crystal is frozen the sensor will read and move theDC stepper motor that makes the automatic plate down and the ice crystal attached to the evaporatorwill be released with a reverse process on the system. Ice crystal will fall automatically and prepare atray as a base to hold the ice.
Analisis Unjuk Kerja Four-Stroke Diesel Engine Dengan Bahan Bakar Multi-Feedstock Biodiesel (Minyak Kelapa Sawit, Minyak Kemiri, Minyak Biji Jarak) Moch Alfian; Edi Haryono; Aminatus Sa'diyah
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.v6i1.2436

Abstract

This study aims to analyze the performance of four-stroke diesel engines using multifeedstock biodiesel fuel (palm oil, candlenut oil, and castor seed oil). The three raw materials will be combined and will be mixed with pertamina dex, so that it becomes B20, B35, and B100. Experiments were carried out with engine speed variations of 900, 950, 1000, 1050 rpm and loading variations of 1000 watts, 2000, watts, and 3000 watts. The results showed that the use of multifeed-stock biodiesel B20, B35, and B100 affected the performance of the engine produced. Power and torque values tend to increase when using B20, B35, and B100 fuel. However, the gsfc value produced is not determined by the greater the percentage of biodiesel. B100 fuel is the highest fuel in producing power and shock, while B35 is the lowest gsfc value fuel.
Penjadwalan Perawatan Komponen Pada Sistem Pendingin Main engine Crew Boat 41 GT Andreas Nova; Tasya Putri Lindyawati; Nurvita Arumsari; Aminatus Sa'diyah
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.v6i1.2444

Abstract

Currently, there is a growing trend of damages occurring to the main engine, with some cases leading to sailing delays or even endangering human safety. The Crew Boat 41 GT is a vessel operating to transport crews or provide offshore support. Therefore, it is crucial to pay attention to the maintenance of its main engine, especially the cooling sub-system, which plays a vital role in maintaining the working temperature of the main engine to prevent overheating. Consequently, a suitable maintenance scheduling strategy is required for the sub-system components of the Crew Boat 41 GT's main engine to ensure the operational efficiency of the main engine is not disrupted. This study aims to predict the reliability using both qualitative (FMEA) and quantitative methods (theoretical and Monte Carlo simulation) to develop a plan for preventive maintenance scheduling, FMEA analysis identified three critical components, there are sea water pump, heat exchanger, and fresh water pump. The results of the quantitative analysis for these three critical components showed that the RLLM = 0.6, with little difference between the two methods. Additionally, error calculations were performed using RMSE, MAPE, and MAE, with results close to 0. Moreover, from the evaluation of corrective and preventive maintenance, it was found that preventive maintenance is more recommended as it can save costs by approximately 16.26% or Rp 7,703,292.56 for a single maintenance of all components.
Perbandingan Model Peluang Kegagalan Pada Sistem Pendingin Main engine Crew Boat 41 GT Tasya Putri Lindyawati; Nurvita Arumsari; Aminatus Sa'diyah
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.v6i1.2632

Abstract

Damage to the main engine is currently common, some cases result in sailing delays or eventhreaten human safety. Crew boat 41 GT is a ship that operates to transport crew or support offshore. Thus, it is necessary to pay attention to the maintenance of the main engine, especially the cooling sub-system which plays an important role in maintaining the working temperature of the main engine so as not to overheat. Therefore, it is necessary to predict the failure of the 41 GT crew boat main enginecooling sub-system components so that the right time can be determined to carry out maintenance onthese components before damage occurs. In this study, the prediction of reliability value was carriedout using qualitative (FMEA) and quantitative (theoretical and Monte carlo simulation) methods.FMEA analysis resulted in 3 critical components, namely sea water pump, heat exchanger and freshwater pump. The results of quantitative analysis of 3 critical components at RLLM = 0.6 between thetwo methods are not much different and error calculations have been carried out with RMSE, MAPE,and MAE with results close to 0. So, it can be seen that the MCS method can be applied to predictreliability values.
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.
The Effect of Increasing Catalyst Concentration of Fabricated Hydrogen Generator on Proton Exchange Membrane Fuel Cell Performance M Anis Mustaghfirin; Mardi Santoso; M Hakam; Rafi Akbar Heriyansyah; Aminatus Sa’diyah; Eky Novianarenti; Ni’matut Tamimah; Haidhar Wahyu S
International Conference on Maritime Technology and Its Application Vol. 3 No. 1 (2025): ICOMTA : International Conference on Maritime Technology and Its Application
Publisher : Surabaya State Polytechnic of Shipbuilding

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/icomta.v1i1.9

Abstract

Hydrogen can be utilised through a Proton Exchange Membrane Fuel Cell (PEMFC) which has many advantages, namely more energy yield, higher energy density, no emissions, and no need for recharging compared to using batteries. The highest electrolyzer efficiency results were found on the 0.05M KOH catalyst with a value of 1.70% and it can be concluded that the higher the catalyst concentration, the higher the electrolyzer efficiency. The highest power density and fuel cell efficiency quality is found in the 0.05M NaCl catalyst but with the lowest Specific Fuel Consumption (SFC) of 0.62 kg/kWh, this indicates that the relationship between concentration and power density and fuel cell efficiency is directly proportional while it is inversely proportional to Specific Fuel Consumption ( SFC). The best Break Even Ratio value is found in the NaCl catalyst type 0.05 with a value of 0.082. The use of a seawater catalyst has the highest efficient value at a percentage of 100% with electrolyzer efficiency reaching 13.36% and the lowest SFC, namely 0.24 kg/kWh. Based on these results, the use of hydrogen generators for Proton Exchange Membrane Fuel Cells (PEMFC) needs to be developed.
Study of Variation of Binder Materials On Permeability Of Foundry Green Sand Widya Emilia Primaningtyas; Farizi Rachman; Tisya P. Ramadhani; Aminatus Sa’diyah
International Journal of Marine Engineering Innovation and Research Vol. 8 No. 2 (2023)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i2.5467

Abstract

The preparation of standards and procedures for the production process in the manufacturing industry plays an important role in achieving acceptable products and in accordance with the desired quality. Based on the data from the quality control report of a foundry company, casting defects slightly exceed the maximum reject rate. It was found that the moisture content in the molding sand produced according to the procedure exceeded the maximum water content in the molding sand. The research was conducted as an effort to improve the quality of the company's production in reducing reject products. Permeability values of molding sand and quantitative area of cast defects will be compared, as a variations of bentonite and molasses binders , in three variations of the percentage addition of binder, respectively: 1, 3, and 5%. The Anova Two Way approach was used to statistically assess the results of the permeability test of the test specimens to ensure the effect of the predictor variables on the response. The results indicated that the more molasses, 5% added to the molding sand, gave the highest permeability of 53.50 ± 0.50 cm3/minute and gave the lowest cast defect area of 11.97%. The addition of bentonite binder produces a phenomenon that is inversely proportional to the addition of molasses binder.
An Experimental Study of Stagger Angle Effect Placed in front of Returning Side toward the Savonius Wind Performance Using Overlap Myring Blade for n = 1 Priyo Agus Setiawan; Projek P. S. Lukitadi; Emie Santoso; Nopem Ariwiyono; Aminatus Sa’diyah; Daisy D. K. R. Antariksih; Galih Anindita; Budi Prasojo; George E. Kusuma; Rini Indarti; Mardi Santoso; Bambang Antoko; Endang P. Purwanti; Mohammad M. Munir
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 2 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i2.6402

Abstract

The previous Savonius wind turbine studies have proved that overlap modifications to conventional blades can improve turbine performance. With these conventional blades, the performance is less optimum because the drag force generated by turbine's rotation is still high. Based on this condition, this experiment is conducted by modifying Savonius wind turbine with overlap blades using Myring equation n = 1. Its blade profile is made half-elliptical to reduce drag force. Diameter and height of the turbine are 400 mm with 0.3 overlap ratio. The ratio of cylinder diameter (ds/D) is 0.4, and the ratio of cylinder center distance (S/d) is 1.7. Experiments are conducted by varying stagger angles of circular cylinder in front of returning blade are 45°, 50°, 55°, and 60° with velocity 5 m/s. The final results show that the best performance improvement of the turbine occurs at 60° stagger angle. The increase in torque coefficient is 4.95% and power coefficient is 20.16% to overlap Savonius wind turbine with myring n = 1 with no circular cylinder.
Co-Authors Aisyah Diva Andika Aldo Pratama Andreas Nova Anggara Trisna Nugraha Asri, Purwidi Bambang Antoko Budi Cahyo T A Budi Prasojo Daisy D. K. R. Antariksih Daisy Dwijati KR Devina Puspita Sari Diego Ilham Yoga Agna Edi Haryono Edy Setiawan Eky Novianarenti Eky Novianarenti Endang P. Purwanti Enggar Alfianto Fajar Rahmat Adzani Faris Riyadi Farizi Rachman Galih Anindita George E. Kusuma Haidhar Wahyu S Ii Munadhif Imah Kusminah Imah Luluk Imah Luluk Kusminah Imaniah Sriwijayasih Invinandri Joko Invinandri Joko Ahmad Laili Agustin Widyaningrum M Anis Mustaghfirin M Hakam Mardi Santoso Mardi Santoso May T Mubarokah Mayriza Mubarokah Tambas Mey Rohma Mey Rohmadhani Moch Alfian Mochamad Rizal Mohammad M. Munir Mokhamad Rizki Febriansyah Muh Anis Mustaghfirin Muhammad Anis Mustaghfirin Muhammad Bilhaq Ashlah Muhammad Izzul Haj Muhammad Shah Mukhammad Jamaludin Ni'matut Tamimah Ni’matut Tamimah Nopem Ariwiyono, Bachtiar Nurvita Arumsari Ponti Almas Karamina Pramesti, Lely Primaningtyas, Widya Emilia Priyo Agus Setiawan Priyo Agus Setyawan Projek P. S. Lukitadi Projek Priyonggo Sumangun Lukitadi Rafi Akbar Heriyansyah Rahmania Firdiansyah Rikky Leonard Rini Indarti Rini Indarti Salsabila Ika Yuniza Santoso, Emie Suci Indaryani Syafiuddin Syamsiar, Syamsiar Tasya Putri Lindyawati Tisya P. Ramadhani Tri Dayanti Wildhan Zaky Arsyada Yulyar Kartika Wijayanti