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Coolbox Design for Traditional Fishing Vessel Using Sengon Wood (Paraserianthes falcataria (L.) Nielsen) Sawdust and Rice Straw Insulation Alam Baheramsyah; Ede Mehta Wardhana; Puteri Ladikha Sihombing
International Journal of Marine Engineering Innovation and Research Vol. 3 No. 2 (2018)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v3i2.6064

Abstract

Increased production of Indonesia catch fish accompanied by increased coolbox using to maintain freshness of fish. The efforts to maintain freshness of fish during this time is use a coolbox made from styrofoam which is not environmental friendly. Therefore, it is need to make cool box with environment friendly material and also effective for fish preservation . In this research, coolbox is modified with insulation based on Sengon wood sawdust (Paraserianthes falcataria (L.) Nielsen) and rice straw. Using the sawdust of sengon wood and dried straw pieces , experiments conducted to get the best composition of insulation, insulation variated with 2 different adhesives, PVAc and polyurethane .The results of the density test and thermal conductivity test, also in terms of preparation of various insulation variations, show that insulation with 66% sawdust of sengon wood; 28% straw; and 6% polyurethane adhesive is the best insulation to be used in coolbox, with thermal conductivity of 0.54 W / mK and density of 0.38 gr / cm3. The experiment in coolbox is done for 24 hours with 48 times data retrieval. Used ice cubes with a mass of 2.0 kilograms and 400 grams tuna fish. The experimental results show the minimum temperature that can be achieved coolbox is -0.1 ° C below the surface of ice .In fish body, the lowest temperature that can be achieved is 3, 2 ° C. While in the coolbox room, the lowest temperature is 19.4 ° C. The results also show coolbox with sengon sawdust and rice straw insulation able to preserving fish for 15 hours, with weight ratio between fish and ice is 1: 5.
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 : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v3i1.6068

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.
Cooling System Design for Cold Storage of Traditional Fishing Boat Using Insulation from Rice Husk Muhammad Abidin; Alam Baheramsyah; Ede Mehta Wardhana
International Journal of Marine Engineering Innovation and Research Vol. 3 No. 1 (2018)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v3i1.6079

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.
Design of Air Ventilation System for Cargo Hold Vessels Using Solar Desiccant Alam Baheramsyah; Taufik Fajar Nugroho; Prasetyo Adi Wibowo
International Journal of Marine Engineering Innovation and Research Vol. 1 No. 4 (2017)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v1i4.6161

Abstract

One of the facilities and infrastructure of the vessel is the ventilation system in the cargo hold to maintain the quality. One attempt to avoid high moisture ratios is to provide a dry air supply by using desiccants. The purpose of this thesis is to design the system of air ventilation with solar desiccant by analysis the calculation with decrease air humidity ratio after passing desiccant rotor as well as fulfillment needs of heater and cooling system using heat of exhaust gas and seawater as well as fulfillment of electricity need using solar energy. From the result of analysis obtain to provide air supply in the cargo hold of 437.5 m3 / hour, the specification of rotor desiccant has a diameter of 550 mm with thickness 200 mm to decrease ratio of outside air humidity equal to 83.1% become 46.5%. Dehumidification air temperature of 47.7oC will be lowered to 35oC by using the sea water cooling media. As for the reactivation air heater requirement of 24.292 kW would be to fulfilled by utilizing the exhaust power of 498.12 kW. And for the electric power needs of the syetm is 34,488 wp will be supplied from the total solar module is 33 units with 345 wp per-capacity.
Slurry Ice as a Cooling System on 30 GT Fishing Vessel Alam Baheramsyah; Beny Cahyono; Suganda
International Journal of Marine Engineering Innovation and Research Vol. 1 No. 3 (2017)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v1i3.6195

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 6000 L.