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All Journal Jurnal Teknik ITS International Journal of Marine Engineering Innovation and Research
Alam Baheramsyah
Departemen Teknik Sistem Perkapalan Institut Teknologi Sepuluh Nopember
Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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Analysis of Palm Fiber and Coconut Coir Usage as Purse Seine Cargo Chamber Insulator Alam Baheramsyah; Ede Mehta Wardhana; Muhammad Azis Husein
International Journal of Marine Engineering Innovation and Research Vol 3, No 1 (2018)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (483.27 KB) | DOI: 10.12962/j25481479.v2i4.3922

Abstract

Indonesia's annual marine fish potential of 6.5 million tons is spread over the waters of Indonesia's Exclusive Economic Zone. The constraint of which are often faced by fishermen is the decay that occurs during the storage process in which the fish becomes less fresh when it comes to the fish auction. The decomposition rate of fish after fishing is strongly influenced by fishing techniques, handling techniques, and onboard storage. The cooling or freezing process is the best method chosen for handling the catched fish to maintain its quality and freshness. This study was conducted by modifying the insulation material of purse seine cargo hold using a coolbox made of insulated materials from coconut coir and Palm Fiber. The purpose of this study is to know the influence of coconut coir and Palm Fiber composite insulation to temperature and cooling time in which will be compared with styrofoam insulated coolbox. The study was conducted by testing some specimens which will be selected with the thermal conductivity and lowest density. The compositions which is chosen were coconut coir and Palm Fiber composite that is mixed with polyurethane glue 4:4:1 ratio, having a thermal conductivity of 0.4643 W/mK and a density of 0.18 g/cm3. Coolbox's test using coconut coir and Palm Fiber composite insulation was done using a 400 gram fish as a cooling load and ice that had been destroyed weighing 2 kilograms as a cooling source. Coolbox with coconut coir and Palm Fiber composite insulation has the lowest fish temperature of 0.7oC, while the coolbox with styrofoam  insulation has the lowest fish temperature of 1.8oC. In addition, coconut coir and Palm Fiber composite coolbox is able to keep temperature below 20oC for 16,5 hours, while with the same treatment styrofoam  insulated coolbox is only able to keep the temperature below 20oC for 16 hours. So it can be concluded the use of coconut coir and Palm Fiber composite is effective as insulation material because it can offset the performance of the insulation styrofoam.
Coolbox Design Modification for Traditional Fishing Vessel Using Sengon Wood Sawdust and Potassium Hydroxide-Soaked Coconut Coir Ede Mehta Wardhana; Alam Baheramsyah; Hilmy Yassar
International Journal of Marine Engineering Innovation and Research Vol 5, No 1 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (491.657 KB) | DOI: 10.12962/j25481479.v5i1.6992

Abstract

This research modified coolbox by mixing sengon wood sawdust and potassium hydroxide-soaked cocofiber. By considering its composition, potassium hydroxide content, and soaking duration, this research was done to find the optimum amount of those three variables to make the best insulator. The best insulator was chosen based on its thermal conductivity, density, and economic value, and the easiness in the making. From the experiment, the chosen composition consists of 30% sengon wood sawdust and 70% potassium hydroxide-soaked cocofiber with content of 15% and soaking duration of 2 hours. With thermal conductivity of 0,352W/mK, density of 0,303gram/cm3, and specimen production cost of Rp607,41, this material was used for composition reference in the making of the coolbox. The experiment of coolbox lasted for 35 hours with 71 temperature data retrievals. The coolbox experiment used 500 gram tuna fish and 2500 gram ice as cooler. The result showed that the lowest temperature for ice inside coolbox was 0,3°C, the lowest temperature of fish was 5°C, and the lowest temperature in coolbox chamber is 17°C. With the ratio of 1:5 for fish and ice, the coolbox insulation using sengon wood sawdust and potassium hydroxide-soaked cocofiber was able to maintain fish temperature below 20°C for 27,5 hours. Meanwhile, the styrofoam coolbox was able to maintain fish with the same condition for 35 hours.
Cooling System Design for Cold Storage of Traditional Fishing Boat Using Insulation from Rice Husk Muhammad Abidin Abidin; Alam Baheramsyah; Ede Mehta Wardhana
International Journal of Marine Engineering Innovation and Research Vol 3, No 1 (2018)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (521.098 KB) | DOI: 10.12962/j25481479.v3i1.2501

Abstract

Quality of fish is an important factor and determines the high selling price of fish in the market. In achieving that it will require proper handling in the process of cooling the fish before it is sold. To keep the freshness of the fish, fishermen usually use Styrofoam-based coolbox as its isolation. In this study modify coolbox using rice husk which serve as insulation on coolbox. This study aims to determine the effect of insulation using rice husk over time and temperature which will be compared with Styrofoam coolbox. Before the experiment, the first thing to do is to test the composition of rice husk with white cement. Where is the best composition to be used as insulation on coolbox. The tests are thermal conductivity, density, and flexural strength tests. From the test results obtained the best composition of rice husk and white cement is 1: 1 which has a thermal conductivity (0.746 W / mK) and density (0.32 gr / cm3) better than other compositions. In the experiments performed using 3 kg of wet ice it was found that in 24 hours cooling time, the rice husk coolbox had the lowest temperature of 13.5 ° C and the lowest Styrofoam coolbox temperature was 10.6 ° C.
Slurry Ice as a Cooling System on 30 GT Fishing Vessel Alam Baheramsyah; Beni Cahyono; Fransiskus Suganda Aruan
International Journal of Marine Engineering Innovation and Research Vol 1, No 3 (2017)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (470.112 KB) | DOI: 10.12962/j25481479.v1i3.2005

Abstract

Indonesia is the largest archipelago country in the world that has a sea area that is very spacious. Indonesian sea area is 5.8 million square kilometers and a coastline of 95 181 km has huge potential in the fisheries sector. In line with the need to further improve on the quality of the fish catch. One way to preserve fish is to use a slurry of ice. Slurry ice proved more effective preserving fishery products instead of using ice cubes. Ice slurry cooling system was designed and applied to the fishing vessel 30 GT. The cooling system uses a simple vapor compression system consists of five major components consisting of evaporator, condenser, compressor, and two pumps.In designing this system determined the type of refrigerant used in advance which type of refrigerant R-507a. Then do the design or selection of its main components. The design is only done on the evaporator. As for the other major components such as condensers, compressors, and pumps election in accordance with the specification of the power needed. After that dialakukan depiction of each system component. Then subsequently designing the laying of ice slurry cooling system components on a fishing vessel 30 GT.            Through calculations using simple thermodynamic equations obtained cooling load on this system amounted to 32.06 kW. Condenser with a power of 40 kW. Compressor with power 12 kW. Pump with capacity 10 m3 / h. With memepertimbangkan space left on the ship in the ice slurry system design on the main deck of the ship to the efficient use of space on board. The power requirements of the generator vessel increases due to the addition of ice slurry system components therefore do replacement generator into the generator with a power of 100 kW and penambahn fuel tank to 6,000 L.
Utilization of Mixture of Teak Wood Sawdust and Bagasse Fiber using Treatment of Fiber Variations and Alkali NaOH Immersion as A Refrigerator Insulation Material Alam Baheramsyah; Ede Mehta Wardhana; Achmad Taufik Rendi Kisserah
International Journal of Marine Engineering Innovation and Research Vol 4, No 2 (2019)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5008.215 KB) | DOI: 10.12962/j25481479.v4i2.4855

Abstract

This research modified the insulation of coolbox material by utilizing a mixture of teak wood sawdust (Tectona grandis L.f.) and previously immersed bagasse fiber (Saccharum officinarum) into an alkali NaOH solution to improve the mechanical properties of the fiber and reduce the value of material thermal conductivity. The most optimal test and analysis results were obtained by composing 50% teak wood sawdust with 50% of previously immersed bagasse fiber in an alkali NaOH solution at a level of 15%. The obtained conductivity value is 0.2907 W / mK, the density is 0.4901 gram / cm3. Experiments on changes in temperature of ice, fish, and coolbox chamber as well as experiments on the duration of fish preservation in the coolbox with variations in the composition of straight fibers have better performance compared to the variation of random fiber which is able to preserve fish for 34 hours with minimum temperature of 0, 2 ° C. For fishing duration of two days, coolbox with a variety of straight fiber has almost the same performance as coolbox made from styrofoam and has the potential to replace styrofoam because it is more environmentally friendly.
Desain Struktur Dinding Palka Kapal Ikan Dengan Lapisan Insulasi Berbahan Sabut Kelapa Vikha Agustiarini; Sutopo Purwono Fitri; Alam Baheramsyah
Jurnal Teknik ITS Vol 12, No 1 (2023)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23373539.v12i1.104197

Abstract

Penelitian ini berfokus pada penggunaan campuran bahan alami sebagai insulasi pada dinding palka ikan. Tujuan penelitian ini adalah mendesain komposisi dinding palka ikan dengan lapisan insulasi berbahan campuran polyurethane dan sabut kelapa dan menganalisa distribusi suhu pada dinding palka serta menganalisa suhu pendinginan di dalam ruang palka ikan. Metode yang digunakan adalah metode numerik berupa simulasi FEM (Finite Element Method) untuk melihat distribusi suhu pada dinding dan simulasi CFD (Computational Fluid Dynamics) untuk melihat distribusi fluida dan ikan di ruang palka. Simulasi FEM dilakukan sebanyak 4 variasi yaitu polyurethane 100%, polyurethane 90% dan sabut kelapa 10%, polyurethane 80% dan sabut kelapa 20%, dan polyurethane 70% dan sabut kelapa 30%. Simulasi CFD dilakukan sebanyak 3 variasi yaitu ruang palka kosong, ruang palka berisi chilled water, dan ruang palka berisi chilled water dan ikan. Metode analisis data dilakukan dengan membandingkan data antara hasil simulasi dengan hasil perhitungan. Hasil simulasi FEM menunjukkan bahwa dinding palka dengan insulasi dari campuran polyurethane 90% dan sabut kelapa 10% dipilih sebagai desain dinding terbaik dengan suhu minimum yang didapatkan paling rendah yaitu bernilai -8,5265e-14°C. Hasil simulasi CDF menunjukkan terjadinya kenaikan suhu pada chilled water yang bermula bernilai 1,259°C kemudian menjadi 3,5°C ketika ditambahkan ikan dan suhu ikan menjadi 2,2°C. Perbandingan antara hasil simulasi dengan hasil perhitungan memiliki perbedaan. Data hasil simulasi memiliki nilai yang lebih rendah dari hasil perhitungan sehingga dapat dikatakan bahwa metode simulasi terbilang lebih akurat jika dibandingkan dengan metode perhitungan manual.
Co-Authors Achmad Taufik Rendi Kisserah Beni Cahyono Beni Cahyono Bravo Yovan Sovanda Djoko Tri Ismanto Ede Mehta Wardhana Ede Mehta Wardhana Fransiskus Suganda Aruan Hadits Shofar Fauzi Hilmy Yassar Indraswara Dinda Putra Mas Alamil Huda Mochammad Andhik Kurniawan Muhammad Abidin Abidin Muhammad Azis Husein Nasa dityas Fariz Pradani Nurkhairana Aryanti Trikurnia Puteri Ladikha Sihombing Septian Ragil Wibisono Sutopo Purwono Fitri Taufik Fajar Nugroho Vikha Agustiarini