Jurnal Teknik Mesin
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Pengaruh Komposisi Kertas Bekas Terhadap Sifat Mekanik dan Ketahanan Air pada Komposit (Kertas Bekas, Gipsum dan PVA)
Get PDFThe purpose of this study was to determine the effect of used paper composition on the mechanical properties and water resistance to the composite (used-paper, gypsum and PVA) expected a composite that has good flexural strength, good water resistance and has a lighter weight than current composites. The materials used in the test specimens are used paper, gypsum and PVA. This research was conducted at the Laboratory of Mechanical Engineering Materials Syiah Kuala University, the flexural testing using ASTM C473 to get the mechanical properties, a standard SNI 03-6434-2000 used to test the water resistance and methods of morphology (SEM photo) to study the structure of the composite. The results showed that 20 percent composites by the addition of filler material (used paper, PVA) to get flexural the value of 9,00 MPa, water resistance of 4,067 percent and have a good bond, mutual binding between the gypsum crystals with used paper fibers. The of all testing, composites with 20 percent adding filler material have lower weight get of 8.98 percent when compared with that sold products
Analisa Kualitas Permukaan Akhir Proses Pemotongan menggunakan Material Komposit dengan Serat Kaca dan Komposit dengan Serat Buah Biduri (Calotropis Gigantea)
Get PDFThis research study drilling quality for polyester composites with glass fiber reinforcement and polyester composite with fiber reinforcement Biduri fruit due to the influence of cutting parameters. The test is performed with the variation of machining process parameters varying the diameter of the cutting tool 5 mm, 10 mm, 14 mm, and a cutting speed of 30 m/min, 60 m/min and 90 m/min which feeds the parameters fixed. The test material used is a composite material with glass fiber reinforcement and composite with natural fiber amplifier with a size of 150 mm x 50 mm x 20 mm. The process of making composites made using hand lay-up method. Test results greater tool shows, the better the quality of the resulting hole. Due to the use of a cutting tool diameter of 5 mm would result in a continuous rage so that it will stick to the cutting tool and can interfere with the cutting tool. Cutting speed, the cutting results, the greater the cutting speed, the better the results are also cutting. Because the higher the cutting speed, the resulting fury will be more and continuous so as not to interfere with the process of cutting
Analisis Laju Fouling pada Tube Heat Exchanger 53 EA-1001
Get PDFAppliance of Heat Exchanger type 53 EA-1001 exist in company PT. Pupuk Iskandar Muda operate the time some long time is hence formed by coat of fouling, existence of fouling will lessen the hot coefesien transfer totally (U) to a point appliance planning reach the minimum price, this information is obtained to can to schedule for the periodic routine of sweeping as well as commutation of pipe of appliance of heat exchange which is improper used again by prediction is maximum gather fouling at appliance of Heat Exchanger. Existence of fouling will lessen the final hot coeffesient transfer to a point planning, so that can be scheduled for by a routine treatment. Hot influence Coeffesient transfer totally ( U) to fluid flow speed, resulting height of stream speed. 8640 hour operate for at fouling factor 0,0082 (Rd) yield the volume fouling 0,0066 m3 need the treatment of age Heat Exchanger 27th year of gagging fouling at volume 63,585 m3. Stream emiting a stream is laminar with the value 950 Btu.ft3 / hr.lb.s energy and 1,46 times from missing energy in the situation without there is fouling
Kajian Potensi Energi Bayu sebagai Penggerak Pompa Pengairan Pertanian Daerah Sare Aceh Besar
Get PDFThe amount of agricultural lands has been converted into residential land and industrial land since a lot of farmland in the mountains has been opened. Groundwater and river has been used to irrigate the agricultural lands. Farmers in the mountainous areas typically use his physical effort to get water from river to agricultural land. This causes inefficiency of working for farmers thus the agricultural productivity is not optimal. Owing the fact that agricultural land is far from the electricity resources (PLN) therefore a small capital farmer must use pump to irrigate their agricultural lands. Hence, farmers have to spend big amount of money to buy fuel to drive the agricultural pump engine. Thus, it is necessary to have a specific research on the availability of wind energy in order to mobilize the agricultural pump engine in the mountainous area. In this case, the authors have calculated and analyzed the potential of wind energy to drive the pump in the village of Sare, Aceh Besar. From the analysis it has been obtained that the average wind speed of 6,41 m/s with the diameter of rotor turbine about 3 meter result in 1005,26 watt of wind turbine power. This power can be used to power a 20 m head static pump, requiring 650 watt to provide irrigation for 19 hectare of agricultural land 7 hrs/day. HOMER and Epanet 2.2 software are used to conduct simulation for power system generation. The result of HOMER simulation shows the lowest NPC value of US$ 10.028 with the cost of energy (CoE) of USD 0.717 kWh. The system could produce electricity power in a year of 3.452 kWh and the working length of the generating power system is 15 year
Kajian Sistem Pengkondisian Udara untuk Meningkatkan Tingkat Kenyamanan Termal pada suatu Ruangan Kerja
Get PDFIndonesia is a tropical country with a relatively high air temperatures. Increasing the temperature of the air outside the building space will increase in temperature in the room due to the heat transfer. Increasing air temperatures will occur in the thermal discomfort in space, resulting in a decrease in the effectiveness of work in the room. Conditions the average room temperature in May-September, 2013 in Banda Aceh is 330C-350C between the hours 11:00-13:00 WIB. This temperature is outside the limits of thermal comfort standards. To improve work efficiency in a room, the air must be conditioned to meet the thermal comfort standard SNI mounting method as a simple means of heat exchangers. Especially in the room that do not use often like indoor halls, and other sports, for this case by using the air conditioning air conditioner is too large investment and operational costs. In this study assessed a replacement air conditioning system with cold air in the conditioned room. In this study there are 3 air conditioning systems made is the replacement of AC system with fresh air into the space conditions, with the replacement of the air conditioning system is cooled with water to the space conditioning and replacement of the air conditioning system with a cooled with ice to the room conditioning. A room temperature of approximately 400C-500C air conditioned with new replacement 150C temperature-200C so that within 2-3 hours the room temperature dropped to 200C-250C and RH around 55-60%. So that the level of thermal comfort including thermal comfort within
Analisis Efisiensi Energi pada Sistem Pengolahan Air Limbah PT. Arun LNG Lhokseumawe
Get PDFDomestic liquid waste from residential areas of PT Arun NGL processed in Waste Water Treatment Plant. So far WWTP # 48 worked pretty well. Problems that occur in the operation of WWTP # 48 is associated with cleaner production principles are: Inefficiency of use of water; The need for clean water for residential and office buildings in the PT Arun NGL is relatively large average 700 L/capita/day, use large quantities of water have an impact on increasing the volume of domestic waste water to be generated and processed at the waste processing unit. On the other hand there has been no attempt to use effluent water WWTP # 48 whose quality is relatively good and relatively large number is 2275 m3/day. This study aimed to analyze the results of energy conservation has been done on the wastewater treatment unit at PT. Arun. To identify inefficient use of water, electricity and chlorine using gap analysis.The data observed in the field compared to the ideal condition that refers to good governance(Good Housekeeping), and then determined how much deviation. The amount of savings opportunities gained from the implementation of cleaner production in the operation of WWTP # 48 is the supply cost savings of 38%
Kaji Eksperimental Efek Ketinggian Cerobong Terhadap Karakteristik Pembakaran Pada Unit Tungku Garam Semi Modern
Get PDFLives of traditional salt farmers increasingly concerned about the unfavorable business caused by the difficulty in obtaining fuel. The use of traditional stoves for salt farmers also without a good smoke channel, making smoke pollution that is harmful to health, and also interferes with the farmers and the environment while producing salt. Therefore, it should be considered a solution to address both of these issues by improving the combustion process that occurs in the combustion chamber and by utilizing the exhaust gas heat as a preheater in the salt process. Good combustion requires sufficient air supply with a certain excess air so that the combustion process is perfect. Air supply can be done by utilizing the natural drought affected by the height of the chimney. Utilization of flue gas has been done by creating a configuration flue gases channel through the multiport stove. Testing with chimney height variation needs to be done toget the optimal height so that stove can work with a good performance to produce salt. The results showed that the optimum height of the chimney in the semi-modern salt stove is at a height of 1.55m with a thermal efficiency of 48.6%
Pengembangan Papan Partikel dari Limbah Kayu Meranti Menggunakan Perekat Damar
Get PDFParticle board is a product of the utilization of waste wood processing that can be used in a variety of buildings and other constructions. Particle board products generally produce formaldehyde emissions that can harm human health. Reducing emissions of formaldehyde, environmentally friendly adhesive should be used, ie Damar (Shorea javanica). In this study, the adhesive resin used as an adhesive for wood particle boards Meranti. This study aims to develop a particle board from Meranti wood waste using adhesive resin, and then to determine the effect of the use of the adhesive resin particle board to physical strength and mechanical wood powder particle board. Making specimens following the ISO Standards No.. 03-2105 - 2006 through print method pressure of 1.33 MPa. Particle size of wood used (0.315 to 5 mm), mixed with a resin weight percentage of 5%, 10%, 15% and 20%. Heating temperature is 150 C for 15 minutes. Obtained from testing the tensile strength of 0516 MPa highest density value 0.989 g/cm3. The results obtained from specimens that have adhesive resin composition of the Meranti wood particles with a ratio of 20:80 with a density value of 0.989 g / cm, while for the weight gain and the development of thick generate value by 42%, and 27% lower than at the other test specimens. While the value of the modulus of elasticity for the same composition was 1642 MPa. Based on the percentage, the higher the use of resin will be obtained, the value of tensile strength, modulus of elasticity and the higher density. While the value of water content and the development of diminishing thickness
Kaji Prospek Pemanfaatan Sistem Pembangkit Listrik Hibrida Energi Angin dan Matahari di Desa Langi Kepulauan Simeulue
Get PDFLangi is a rural area in Simeulue distric having not yet received electricity by national grid. To enhance daily activity of Langi villager in term oflighting and utilities, local diesel generators used as main power. Increasing fuel cost effect to production cost of diesel generator. Since this type of power source is not viable option economically.This study investigates feasibility of hybrid system to provide electricity in Langi. The hybrid system uses combination of diesel generator, solar panels and wind turbines. Meteorology Agency reports wind speedaverage 3-3.67 m/sec at 10 meters above sea level and daily average radiation about 2.5-4.5 kWh/m2/day. Those data used as initial input to simulated power hybrid system using HOMER software. The simulation results show that appropriate combination applied in Langi is a unit of solar panels 55 kW, 10 unit wind turbines with the capacity 30 kW, 2 unit diesel generators with capacity 110 kW and 30 kW, and a 40 kW inverter. Refer to Langi village electricity demand around 220.807 kWh/year, so electricity producing by the hybrid system able to supply around 399 088 kWh/year
Uji Performansi Mesin Yanmar TS 50 Menggunakan Bahan Bakar Biodiesel dari Minyak Kepayang (Pangium Edule)
Get PDFFruit Football is a type of plant that is widely available in Aceh and is not utilized by the community. This research will be studied in experiments of fruit fooball as biofuel in diesel engines. Diesel engines are used in this test is a single cylinder four stroke engine water-cooled Yanmar brand, type TS 50 with specs: Maximum Power 5 HP, maximum rotation 2400 rpm, maximum torque 2.29 kg.m at 1600 rpm and compression ratio 17.9: 1. Performance testing is done with a diesel engine intended to determine the amount of power generated, the level of fuel consumption, specific fuel consumption and thermal efficiency. Testing is done with two variations of biodiesel fuel that B-10 and B-20 as well as diesel fuel for comparison. The results obtained from this study is that the power generated from diesel fuel is greater than the other two fuels, while more efficient fuel consumption B-20 followed by B-10 and diesel fuel. Specific fuel consumption results are varied while the higher thermal efficiencies generated by the B-20 of the B-10 and diesel fuel at high speed