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Archipelago Engineering
Published by Universitas Pattimura
ISSN : 26203995     EISSN : 27987310     DOI : https://doi.org/10.30598/ale
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation
Prosiding “Archipelago Engineering” adalah prosiding yang diterbitkan oleh Fakultas Teknik Universitas Pattimura, sebagai sarana publikasi hasil Seminar Nasional "Archipelago Engineering (ALE)", yang merupakan dari hasil penelitian, studi kepustakaan dan sharing dalam bidang teknik mesin, teknik industri dan teknik kelautan serta teknik sipil dan perencanaan wilayah. Prosiding ini memuat artikel yang belum pernah dipublikasikan sebelumnya yang berupa artikel hasil penelitian ataupun penelitian terapan, artikel telaah yang berkaitan dengan perkembangan teknologi. Informasi tentang pedoman penulisan artikel dan prosedur pengiriman artikel terdapat pada setiap penerbitan. Semua artikel yang masuk akan melalui “peer-review process”. Artikel dipublikasikan pada Prosiding, setelah memenuhi persyaratan sesuai pedoman penulisan artikel dan telah dipresentasikan pada Seminar Nasional ALE. Prosiding ini diterbitkan dalam setahun sekali.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 182 Documents
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AKSES TRANSPORTASI DALAM PENURUNAN BIAYA LOGISTIK KEPULAUAN BERBASIS KOMODITI UNGGULAN LOKAL Marcus Tukan; Hozairi Hozairi; Billy J. Camerling
ALE Proceeding Vol 4 (2021): Archipelago Engineering (ALE)
Publisher : Fakultas Teknik Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ale.4.2021.89-95

Abstract

Smooth access to ships and ports can reduce logistics costs, therefore transportation is seen as the lifeblood of the regional economy. The decrease in logistics costs (B_L) is a function of ship visits (Call) with available loading and unloading capacity (Q_bongkar), unloading performance (K_B/M) is the ability and efficiency of the use of loading and unloading labor (TKBM) at the port including loading and unloading equipment. loading at a port in an area, the efficiency of logisticBL logistics transport costs can improve the transportation performance of the archipelago and this condition will have a derivative impact on the purchasing power of the people in the islands. The results of the study obtained parameters 0 = -1.102, 1 = 0.001046, 2 = 0.00005, 4 = + 08970, 4 = 0.000000 where the increase in logistics costs can affect Call, Q_bongkar, Performance_B/M, GRDP_unggulan, if B_L increases by 1% will have an impact also for all existing parameters. if performance_B/M = + 08970. then B_L has a fairly good correlation with improved loading and unloading performance at the port and has a significant effect on cargo which has a strong impact on price declines in encouraging purchasing power and economic growth
DESAIN AUTOMATIC CONTROL SYSTEM POMPA AIR TAWAR PADA KAPAL RAKYAT Franky Tanahitumessing
ALE Proceeding Vol 4 (2021): Archipelago Engineering (ALE)
Publisher : Fakultas Teknik Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ale.4.2021.96-103

Abstract

Freshwater supplies on people's ships are a vital need that must be met during the ship's voyage. The distribution system used without control will be troublesome for the Crew, who are always in charge of controlling the availability of water in the daily tank and running the water pump. Water pump control equipment is used to help reduce the working time of the Crew and can improve the performance efficiency of the water pump. A buoy switch is a control tool that is often used, but the buoy system will be disrupted over time. An automatic control system using a water level sensor is not familiar to use to control the water pump. From the design results of this system is more efficient than the buoy switch. Its efficiency can be seen from the degree of sensitivity to changes in water level, as well as longer service life. This system can be used to control the work of water pumps without supervision or control of the Crew, thus saving more time and the availability of water in the daily tank remains available at all times.
PENGEMBANGAN KAPAL PERIKANAN TRIMARAN: KAJIAN MENGENAI KEBUTUHAN TENAGA KAPAL, KEAMANAN DAN KENYAMANAN Richard B. Luhulima
ALE Proceeding Vol 4 (2021): Archipelago Engineering (ALE)
Publisher : Fakultas Teknik Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ale.4.2021.37-43

Abstract

In general, the fishing fleets operating in Maluku waters are consisted of monohull and trimaran vessels with outriggers managed by local entrepreneurs. Monohull fishing vessels have limited deck space and low transverse stability, whereas trimaran fishing vessels have more deck space and greater transverse stability than monohull fishing vessels, but space is still limited due to their outrigger shape. This study aimed to analyze the development of the trimaran fishing vessel in terms of energy requirements, safety and comfort of the crew during fishing operations. At the beginning of this research, data analysis was undertaken and the basic size of monohull fishing vessels operating in Maluku waters, from this data the shape of the trimaran hull was then designed. Resistance was calculated using CFD, and then the resistance, stability, safety, and comfort of the ship were examined using Maxsurf. The trimaran vessel’s barrier was 8.86% smaller than a monohull and 3.25% smaller than a catamaran. Trimaran vessels consumed more energy than other vessel types. The average trimaran period was 10.5 seconds which met IMO standards and was declared as operationally good.
ANALISA TITIK KRITIS GERAKAN ROLL KAPAL TRIMARAN UNTUK DIAPLIKASI PADA KAPAL IKAN PURSE SEINE Fella Gaspersz; Richard B. Luhulima
ALE Proceeding Vol 4 (2021): Archipelago Engineering (ALE)
Publisher : Fakultas Teknik Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ale.4.2021.44-50

Abstract

The marine fisheries catching and processing industry are considered vulnerable to the effects of extreme weather at sea. Global warming effects and El Nino and La Nina have a significant impact on the upwelling process, which impacts the lifestyle and environment of marine biota, including pelagic fish, which is one of the most important contributors to the shipping industry. Extreme weather conditions, with wave heights ranging from 1 to 5 meters, dominate the waters of Maluku. In extreme sea conditions, most fishers choose not to go fishing, not because there are no fish at the fishing grounds, but to avoid mishaps at sea. This research aimed to analyze the critical point of ship roll motion and ship stability. The hull shape employed in this study was a monohull fishing vessel and a trimaran fishing vessel with the same displacement of 21,1 tons. In extreme weather conditions, the Maxsurf software was used to analyze the ship's response, especially the critical point of the ship's roll motion. The I.M.O. Standard was utilized to calculate the ship's stability. The operational speed of the ship was v = 3 knots, with fluctuations in wave angle of incidence between 00 - 1800. Wave heights of 1,0; 2,0; 3,0, and 0,4 meters represent extreme weather conditions in Maluku waters' fishing grounds. The findings revealed that the trimaran hull type had better stability where the inclination angle of trimaran vessel stability was 480 while the monohull was 410. The trimaran fishing vessel was able to withstand a wave height of 3 meters with an inclination angle of 32,560. In comparison, the monohull fishing vessel was able to survive at a wave height of 2 meters with an inclination angle of 24,690. Monohull fishing vessel had a maximum limit of roll motion at wave directions 82 and 99 with a wave height of 3 m, and it reached at the critical point at angles of 43 and 138, at the height of 4 m. Meanwhile, the trimaran fishing vessel had a critical point at a wave angle of 760 and 1000 with a wave height of 4 meters. In the area between those two angles, monohull and trimaran fishing vessels will lose the balance (stability) of the roll motion, resulting in capsize.
PERILAKU CHAOS ALIRAN FLUIDA BERDENYUT DALAM SALURAN BERPENAMPANG SEGIEMPAT Prayitno Ciptoadi; Mesak F. Noya; Gertruida S. Norimarna
ALE Proceeding Vol 4 (2021): Archipelago Engineering (ALE)
Publisher : Fakultas Teknik Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ale.4.2021.104-111

Abstract

The pulsatile fluid flow in a transverse grooved channel would become chaotic flows in low Reynold numbers. The Reynold number where flows become chaos depends on grooves distances. The objective of this research is to analyze the effect of grooves distances on the behavior of chaos. This research was done by implementing a closed square cross-section channel, where the bottom surface of the channel was semicircle grooved. The frequency of flow oscillation measurement was done by setting up a resistance sensor that is Wheatstone bridge where the resistance sensor was located in a U manometer. Measurement was done at several Reynold number. From the research result, it is seen that the periodic fluid flows in the transverse grooved channel had become chaos at Reynold number Re 950 in the channel without grooved and at Reynold number Re 700 in the grooved channel. Chaos took placed since a vortex appeared at every treatment.
STUDI EKSPERIMENTAL PERFORMANCE KAVITASI WATERJET PROPULSI Wulfilla M. Rumaherang; J. Louhenapessy; Mesak F. Noya; Cendy S. Tupamahu
ALE Proceeding Vol 4 (2021): Archipelago Engineering (ALE)
Publisher : Fakultas Teknik Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ale.4.2021.112-120

Abstract

Cavitation is a complex phenomenon of dynamic processes in hydraulic machines that can cause a decrease in energy performance, vibration and damage the blade surfaces. Analysis of cavitation symptoms in hydraulic machines is carried out through cavitation performance studies, namely the relations between energy parameters. Each hydraulic machine has a critical value on a different cavitation performance curve. Therefore, a study of the effect of cavitation changes is needed to determine the working zone of hydraulic machines without cavitation. In this study, cavitation performance analysis was carried out on a waterjet propulsor model with 5 impeller blades and 7 stator blades using experimental methods. The cavitation coefficient was varied at σ = 2.25 to 0.25 by setting and controlling the inlet pressure on the cavitation test rig. The critical point value will be observed at the point where the thrust coefficient decreased to 3.28%. The results showed that cavitation begins at σ = 1, the critical point is obtained at σ = 0.75. From these studies, we find that waterjet must be operated at conditions where is σ > 0.75.
ANALISIS KEKUATAN TARIK DAN IMPAK MATERIAL KOMPOSIT POLIMER DALAM APLIKASI FIBERBOAT Rezza Ruzuqi; Victor Danny Waas
ALE Proceeding Vol 4 (2021): Archipelago Engineering (ALE)
Publisher : Fakultas Teknik Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ale.4.2021.121-126

Abstract

Composite material is a material that has a multi-phase system composed of reinforcing materials and matrix materials. Causes the composite materials to have advantages in various ways such as low density, high mechanical properties, performance comparable to metal, corrosion resistance, and easy to fabricate. In the marine and fisheries industry, composite materials made from fiber reinforcement, especially fiberglass, have proven to be very special and popular in boat construction because they have the advantage of being chemically inert (both applied in general and marine environments), light, strong, easy to print, and price competitiveness. Thus in this study, tensile and impact methods were used to determine the mechanical properties of fiberglass polymer composite materials. Each test is carried out on variations in the amount of fiberglass laminate CSM 300, CSM 450 and WR 600 and variations in weight percentage 99.5% -0.5%, 99% -1%, 98.5% -1, 5%, 98% -2% and 97.5%-2.5% have been used. The results showed that the greater the number of laminates, the greater the impact strength, which was 413,712 MPa, and the more the percentage of hardener, the greater the impact strength, which was 416,487 MPa. The results showed that the more laminate the tensile strength increased, which was 87.054 MPa, and the more the percentage of hardener, the lower the tensile strength, which was 73.921 MPa.
ANALISIS EFEKTIVITAS PENUKAR KALOR PIPA HELIKAL DESTILASI MINYAK ATSIRI KAYU PUTIH Antonius Hatumessen; Nicolas Titahelu; Cendy S. Tupamahu
ALE Proceeding Vol 4 (2021): Archipelago Engineering (ALE)
Publisher : Fakultas Teknik Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ale.4.2021.127-132

Abstract

The Eucalyptus plant is one of the essential oil-producing plants. Eucalyptus oil processing generally uses the distillation method. Traditionally used eucalyptus oil distillation uses a straight pipe condenser. The weakness of the straight pipe condenser is that the temperature of the condensate that comes out is still very high, this shows that the effectiveness of the straight pipe condenser is not optimal. To optimize the effectiveness of the distillation system condenser, a condenser with a helical pipe type condenser is designed in the essential oil distillation system. This study will vary the ratio of the pitch distance to the diameter of the condenser pipe, which aims to obtain an effective helical coil pitch ratio to optimize the effectiveness of the helical pipe condenser. This study uses the simulation method on COMSOL Multiphysics 5.4. The pitch ratio variant used is 2.1; 2.62; 3.15; 3.67; 4.2. The parameters that are constant in this study are the inlet fluid temperature on the tube side 373 K, the inlet fluid temperature on the shell side 288 K, the fluid inlet velocity on the tube side 0.2 m/s, and the fluid inlet velocity on the shell side 1 m/s. The results of the simulation by varying the pitch ratio show that the effectiveness increases as the pitch ratio value decreases, where the highest effectiveness is shown at pitch ratio of 2.1 which 75.9% and the lowest effectiveness is shown to pitch ratio of 4.2 which 70.7%.
KAJI PERFORMANSI REFRIGERAN R-290, R-32, DAN R-410A SEBAGAI ALTERNATIF PENGGANTI R-22 Rikhard Ufie; Cendy S. Tupamahu; Sefnath J. E. Sarwuna; Jufraet Frans
ALE Proceeding Vol 4 (2021): Archipelago Engineering (ALE)
Publisher : Fakultas Teknik Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ale.4.2021.133-139

Abstract

Refrigerant R-22 is a substance that destroys the ozone layer, so that in the field of air conditioning it has begun to be replaced, among others with refrigerants R-32 and R-410a, and also R-290. Through this research, we want to know how much Coefficient of Performance (COP) and Refrigeration Capacity (Qe) can be produced for the four types of refrigerants. The study was carried out theoretically for the working conditions of the vapor compression cycle with an evaporation temperature (Tevap) of 0, -5, and -10oC, a further heated refrigerant temperature (ΔTSH) of 5 oC, a condensation temperature (Tkond) of 45 oC and a low-cold refrigerant temperature. (ΔTSC) 10 oC and compression power of 1 PK . The results of the study show that the Coefficient of Performance (COP) in the use of R-22 and R-290 is higher than the use of R-32 and R-410a, which are 4,920 respectively; 4,891; 4.690 and 4.409 when working at an evaporation temperature of 0 oC; 4.260; 4,234; 4.060 and 3.812 when working at an evaporation temperature of -5 oC; and amounted to 3,730; 3,685; 3,550 and 3,324 if working at an evaporation temperature of -10 oC. Based on the size of the COP, if this installation works with a compression power of 1 PK, then the cooling capacity of the R-22 and R-290 is higher than the R-32 and R-410a, which are 3,617 respectively. kW; 3,597 kW; 3,449 kW and 3,243 kW. If working at an evaporation temperature of 0 oC; 3.133 kW; 3.114 kW; 2,986 kW and 2,804 kW if working at an evaporation temperature of -5 oC; and 2,741 kW; 2,710 kW; 2,611 kW and 2,445 kW if working at an evaporation temperature of -10oC.
ANALISIS LAJU ALIRAN MASSA FLUIDA DINGIN TERHADAP EFEKTIVITAS PENUKAR KALOR SHELL AND TUBE DESTILLASI MINYAK ATSIRI CENGKEH (Syzygium aromaticum) Rengga Said; Nicolas Titahelu; Rikhard S. Ufie
ALE Proceeding Vol 4 (2021): Archipelago Engineering (ALE)
Publisher : Fakultas Teknik Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ale.4.2021.140-145

Abstract

Shell and tube type heat exchanger is a component of clove essential oil distillation apparatus using hot steam as hot fluid and water as a cold fluid, each flowing in opposite directions. The distillation system in the field still uses a condenser or straight pipe heat exchanger, where the temperature of the hot fluid that comes out is still considered high enough so that the indication of effectiveness is not optimal. To optimize the effectiveness, a shell and tube heat exchanger is designed with a numerical method based on Fluent CFD using a hexagonal pipe geometry in tube layouts of 30°, 60°, 45°, and 90° inline and staggered arrangement and counter flow type. This study varied the cold mass flow rate (ṁc) = 0.052; 0.059; 0.083; 0.1; 0.12 Kg/s, while the mass flow rate of the hot fluid is constant. The simulation results obtained that the maximum effectiveness occurred at a mass flow rate of 0.052 kg/s of 5.45% staggered layout and the minimum occurred at a mass flow rate of 0.12 kg/s of 4.01% on an inline layout. The results of this research are also expected to help the community which can be used for various essential oils.

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