Journal of Applied Sciences and Advanced Technology
Journal of Applied Sciences and Advanced Technology (JASAT) is an international peer-reviewed journal dedicated to interchange for the results of high quality research in all aspect of applied sciences, advanced technology. The journal publishes state-of-art papers in fundamental theory, experiments and simulation, as well as applications, with a systematic proposed method, sufficient review on previous works, expanded discussion and concise conclusion. As our commitment to the advancement of science and technology, the JASAT follows the open access policy that allows the published articles freely available online without any subscription.
Articles
68 Documents
<![CDATA[Rail Leveling Analysis of Turning Radius and Speed Train Passenger Cart ]]>
<![CDATA[Ery Diniardi]]>;
<![CDATA[Thomas Djunaedi]]>;
<![CDATA[Deni Almanda]]>;
<![CDATA[Firmansyah Firmansyah]]>;
<![CDATA[Alvaro Costa Neto]]>
<![CDATA[ Journal of Applied Sciences and Advanced Technology Vol 4, No 2 (2021): Journal of Applied Sciences and Advanced Technology ]]>
Publisher : <![CDATA[Faculty of Engineering Universitas Muhammadiyah Jakarta ]]>
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DOI: 10.24853/jasat.4.2.43-50
<![CDATA[Needs consumer will tool transportation train fast fire on time now has sue Railway Corporation for Upgrade service and comfort for satisfaction para para consumer use tool transportation this in activity everyday. Look importance needs consumer will comfort use tool transportation train fire, then Writer interested for discuss comfort in journey train specifically problem journey train fire with elevation rail in pass Bend moment drove. Analysis done from Railway Corporation with literature assistance regarding problem railway. Remember breadth existing problems on train fire, then Writer limit only on calculation point heavy carriage, the forces that occur, and balance carriage when turn without and existence rail elevation. From result analysis carried out elevation data is taken rail maximum by 110 mm, radius curvature, speed plan maximum 120 km/h. Generate speed data critical in bend without elevation rail, and speed critical in bend existence rail elevation.]]>
<![CDATA[Process Control on the Platformer with the Adaptive Neuro-Fuzzy Inference System (ANFIS) Method ]]>
<![CDATA[Heri Setiono]]>;
<![CDATA[Tri Yuni Hendrawati]]>;
<![CDATA[Yustinah Yustinah]]>
<![CDATA[ Journal of Applied Sciences and Advanced Technology Vol 4, No 3 (2022): Journal of Applied Sciences and Advanced Technology ]]>
Publisher : <![CDATA[Faculty of Engineering Universitas Muhammadiyah Jakarta ]]>
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DOI: 10.24853/jasat.4.2.51-56
<![CDATA[Catalytic naphtha reform (platformer) is the main process carried out in oil refineries to increase low octane naphtha into high octane gasoline. The Reformer will meet a wide range of products that require operating flexibility. Process optimization can be done by controlling using the ANFIS method. This optimization requires an accurate process model that is applicable in a wide range of operating conditions, therefore simplifications are made in the kinetic model modeling. This model provides three temperature profiles and concentrations of important hydrocarbons (naphthene, paraffin, and aromatic) throughout the reactor. The optimal control scheme using the ANFIS method is used to maximize the aromatic yield, following the reactor inlet temperature limit. The results obtained were compared with the aromatic results without control and using control with the neural network method. The results showed that the ANFIS method has the ability to control the process. Furthermore, the results obtained from the process are used to determine the pressure of the process during the reaction.]]>
<![CDATA[Mobile-Based Employee Attendance System Design Using the Rapid Application Development Method at the Universitas Muhammadiyah Jakarta ]]>
<![CDATA[Nursodik Nursodik]]>;
<![CDATA[Susanna Dwi Yulianti Kusuma]]>
<![CDATA[ Journal of Applied Sciences and Advanced Technology Vol 4, No 3 (2022): Journal of Applied Sciences and Advanced Technology ]]>
Publisher : <![CDATA[Faculty of Engineering Universitas Muhammadiyah Jakarta ]]>
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DOI: 10.24853/jasat.4.3.81-86
<![CDATA[Employee attendance is an important activity because it is related to employee productivity and is usually used as part of paying employee salaries. Therefore, recording employee attendance must be thorough, fast and accurate. Now, various types of employee attendance systems have developed, one of which uses fingerprints. The employee attendance system currently used by the University of Muhammadiyah Jakarta is attendance using fingerprints placed in every building or faculty. This system has drawbacks, namely the limited availability of fingerprint scanners, placement of presence tools far from the work location, and dependence on presence tools. So with these weaknesses, a mobile apps-based attendance system was built that uses GPS to make it easier for employees to make attendance while in the presence area or where they work. The method used in this research is Rapid Application Development. With this system, the attendance process and attendance data processing is easier and more efficient, helping to maximize the attendance data collection and processing process.]]>
<![CDATA[Process of Making Gas Stove Spuyer with TU-2A CNC Machine ]]>
<![CDATA[Thomas Djunaedi]]>;
<![CDATA[Anwar Ilmar Ramadhan]]>;
<![CDATA[Firmansyah Firmansyah]]>;
<![CDATA[Mohd Amiruddin Fikri]]>
<![CDATA[ Journal of Applied Sciences and Advanced Technology Vol 4, No 3 (2022): Journal of Applied Sciences and Advanced Technology ]]>
Publisher : <![CDATA[Faculty of Engineering Universitas Muhammadiyah Jakarta ]]>
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DOI: 10.24853/jasat.4.3.87-92
<![CDATA[The TU-2A CNC machine is a turning machine tool that is controlled by a computer system through data (program input) in the form of letters and numbers. This machine is capable of producing a work piece with a complex shape and high accuracy, as well as the effectiveness of minimum production time. Gas stove nozzle is a form of work piece which in the manufacturing process is required to have a high level of effectiveness with high accuracy. The supporting factors in the manufacturing process are based on the selection of program functions and machining parameters (cutting speed, feeding, feeding speed and proper rotation of the main axis).In the process of making gas stove nozzles using a CNC TU – 2A machine, the parameter values used are cutting speed (Vs) 20 m/min, feeding 0.75 mm/put, feeding speed (s') 281 mm /min and the main axis rotation (n) 375 rpm.So from the parameters used, it is known that the total machining time per component (tm) = 5.4 minutes, the total production cost per component (Cprod) = Rp. 8,572, - and the total production time per component (t prod) = 7.6 minutes. The greater the value of the Dept of cut, feed and feeding speed, the production time and production costs that occur will decrease until they reach t = 2.6% and C = 2.3%.]]>
<![CDATA[Analysis of Tensile Strength of Jute and Coconut Coir Reinforced Polymer Matrix Composite ]]>
<![CDATA[Berliana Maulani Naziha]]>;
<![CDATA[Putri Ayu Nurmakhmuda]]>;
<![CDATA[Utiya Hikmah]]>
<![CDATA[ Journal of Applied Sciences and Advanced Technology Vol 5, No 1 (2022): Journal of Applied Sciences and Advanced Technology ]]>
Publisher : <![CDATA[Faculty of Engineering Universitas Muhammadiyah Jakarta ]]>
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DOI: 10.24853/jasat.5.1.1-6
<![CDATA[A Composite is a mixture of two or more elements that are physicochemical and different from one another which can produce new products with better properties. As technology advances, conventional composite materials began to be replaced with polymer materials. One way of making polymer composites is to use polyester resin with natural fiber reinforcement. Coconut coir is a natural fiber with a high cellulose content and can produce high lignin is the cause of coconut coir having stiffer properties than other natural fibers. It is this rigid nature that causes coconut coir to be widely ogled by the textile industry. Another example that is often used as a reinforcement for polymer composites is jute fiber. Jute fiber is a natural fiber with high quality derived from the extraction of plant stems with a multicellular structure. This research is about measuring the tensile test of composites with a polyester resin matrix reinforced by jute and coconut fiber.]]>
<![CDATA[Simulation of Efficiency in Improving the Performance of Cylindrical Vertical Furnace Using Indirect Method ]]>
<![CDATA[Dimas Adhitya Rahman]]>;
<![CDATA[Ismiyati Ismiyati]]>;
<![CDATA[Tri Yuni Hendrawati]]>
<![CDATA[ Journal of Applied Sciences and Advanced Technology Vol 5, No 1 (2022): Journal of Applied Sciences and Advanced Technology ]]>
Publisher : <![CDATA[Faculty of Engineering Universitas Muhammadiyah Jakarta ]]>
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DOI: 10.24853/jasat.5.1.7-12
<![CDATA[One of the essential pieces of equipment at the Pertamina Refinery Unit V Balikpapan is the Furnace F-3-04 Vertical Cylindrical type. Furnace operation efficiently becomes very important given the vast energy consumption and directly influences the level of refinery profits. Therefore, it is necessary to do a simulation to increase the efficiency value to minimize energy use. This study aimed to determine the effect of O2 Excess and Flue Gas temperature on efficiency and to find the best efficiency from the simulation results on a Vertical Cylindrical Furnace. In this study, the furnace's efficiency is calculated and simulated using the indirect method. The heat entering the furnace is reduced by the heat lost compared to the heat entering. Initial data processing is a normality test to determine whether the data is usually distributed and can be used for data to be entered into the mathematical simulation of furnace efficiency. The efficiency value produced by Furnace F-3-04 is 86.3%, with an O2 excess value of 7.25% and a Flue Gas temperature of 419 0C. From the simulation carried out, it can be seen that the operating parameter that most affects efficiency is O2 Excess of 0.15 – 0.18% for every 0.5% decrease in O2 Excess for 5 simulations. Meanwhile, the Flue Gas temperature gets a value of 0.02 – 0.03% for every 2 0C decrease for 5 simulations. The best efficiency value is 87.7%, with O2 Excess of 4.75% and Flue Gas temperature of 409 0C.]]>
<![CDATA[Coal Fly Ash as Adsorbent in Removing Organic Compounds (COD) From Tanah Tinggi Wastewater Treatment Installation in Tangerang City ]]>
<![CDATA[Muhammad Djarkasih]]>;
<![CDATA[Ratri Ariatmi Nugrahani]]>;
<![CDATA[Nurul Hidayati Fithriyah]]>
<![CDATA[ Journal of Applied Sciences and Advanced Technology Vol 5, No 2 (2022): Journal of Applied Sciences and Advanced Technology ]]>
Publisher : <![CDATA[Faculty of Engineering Universitas Muhammadiyah Jakarta ]]>
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DOI: 10.24853/jasat.5.2.59-66
<![CDATA[Coal is a combustible organic mineral; the ash produced from burning coal is fly ash and bottom ash. This study aims to determine the process of treating fly ash waste from coal combustion by activating and characterizing it as an adsorbent and to obtain the best type of adsorbent with a concentration of coal fly ash as an adsorbent in removing organic compounds COD so that it meets the standards. Quality by accordance with the Regulation of the Minister of Environment and Forestry Number 68 of 2016 concerning Domestic Wastewater Quality Standards. The research will be carried out with 2 (two) processes, namely the process of making adsorbents and testing the application of fly ash adsorbents with variations in the concentration of sulfuric acid (H2SO4) 2.5%, 5%, and 10% and variations in stirring time of 60, 90, 120 and 150 minutes, then analyzed the COD (Chemical Oxygen Demand) content so that it meets the quality standards that have been set. The results showed that the fly ash content of coal has the potential to be used as an adsorbent because of the high SiO2 content of 35.8% and the Al2O3 content of 17.0%. Results The initial concentration of COD was 404 mg/l. The final concentration of COD for various stirring times with various H2SO4 activation was 11 mg/l with a stirring time of 150 minutes. Optimum conditions of removal efficiency (%) COD for variation of stirring time with various H2SO4 activation obtained 35.73%, R2 value = 0.9891, and the linear regression equation is y = 0.206x - 4.864 with the value of y is COD efficiency removal (%) and x is stirring time (minutes).]]>
<![CDATA[Fiber Cyclone Palm Oil Mill Capacity 45 Tons/Hour ]]>
<![CDATA[Istianto Budhi Rahardja]]>;
<![CDATA[Juni Afriani]]>;
<![CDATA[Ahdiat Leksi Siregar]]>;
<![CDATA[Daruki Daruki]]>;
<![CDATA[Deni Almanda]]>;
<![CDATA[Firmansyah Firmansyah]]>;
<![CDATA[Anwar Ilmar Ramadhan]]>;
<![CDATA[Mohd Hamisa Abdul Hamid]]>
<![CDATA[ Journal of Applied Sciences and Advanced Technology Vol 5, No 2 (2022): Journal of Applied Sciences and Advanced Technology ]]>
Publisher : <![CDATA[Faculty of Engineering Universitas Muhammadiyah Jakarta ]]>
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DOI: 10.24853/jasat.5.2.67-76
<![CDATA[The processing of Fresh Fruit Bunches into crude palm oil and palm kernel can be done by starting to boil the Fresh Fruit Bunches until they are ripe, after the Fresh Fruit Bunches are ripe, then separate the bunches from the fiber by going through the slaughtering process, after which the fiber is then chopped and immediately pressed so that the oil comes out. After the oil and fiber are separated, the fiber will go to the fiber cyclone. Fiber cyclone is a device located at the solids station, the main function of the fiber cyclone is to separate the nut and fiber by sucking the fiber using air, through the ducting column and will exit through the air lock and then go to the boiler to be used as fuel. The fiber cyclone has a speed of 10.08 m/s for the velocity box, a vertical column of 6.86 m/s, and 8.57 m/s for the horizontal column. Fiber cyclone has 1 loss point for kernel, what is analyzed is the output of fiber cyclone which is fiber taken from air lock, the standard loss for fiber cyclone is 0.10%.]]>
<![CDATA[Lighting Level Measuring Device Based On Web Using Kalman Filter Method ]]>
<![CDATA[Dika Rahayu Widiana]]>;
<![CDATA[Tabah Uji Antoro]]>;
<![CDATA[Khoirul Hasin]]>
<![CDATA[ Journal of Applied Sciences and Advanced Technology Vol 5, No 2 (2022): Journal of Applied Sciences and Advanced Technology ]]>
Publisher : <![CDATA[Faculty of Engineering Universitas Muhammadiyah Jakarta ]]>
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DOI: 10.24853/jasat.5.2.43-50
<![CDATA[The need for lighting in each room depends on the activities carried out. According to the Indonesian National Standards (SNI) 03-6575-2001, the minimum recommended lighting strength for lecture hails is 200 lux to 250 lux and for laboratories is 300 lux to 500 lux. In measuring the level of lighting in a room, a tool called a lux meter is needed. But as is known light sensor is a sensor that quite sensitive. In this research the writer uses the Kalman Filter method to increase the accuracy and precision of the BH1750 lighting level sensor. In addition, this tool is also integrated with a website to make it easier for users to monitor measurement results both stored and in real-time. Tool testing is done by measuring 28 different locations. The test scheme is adjusted to the standard operating procedure for measuring light intensity which refers to SNI 16-7062-2019. From the test results for measurements using the Kalman Filter method, the stability level is 78.57%, the precision level is 1.46% and the accuracy error value is 0.92%. While the test results for measurements without the Kalman Filter method obtained a stability level of 53.57%, a precision level of 2.80% and an accuracy error value of 2.77%.]]>
<![CDATA[Simulation Study for Syn-Gas Productivity of Open Top Downdraft Gasifier Using Wood Sawdust Feedstock by ASPEN Plus ]]>
<![CDATA[Halid Nuryadi]]>;
<![CDATA[Kamaruddin Abdullah]]>;
<![CDATA[Syukri M Nur]]>
<![CDATA[ Journal of Applied Sciences and Advanced Technology Vol 5, No 2 (2022): Journal of Applied Sciences and Advanced Technology ]]>
Publisher : <![CDATA[Faculty of Engineering Universitas Muhammadiyah Jakarta ]]>
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DOI: 10.24853/jasat.5.2.51-58
<![CDATA[Wood sawdust feedstock is one of commodity of furniture industrial waste in Indonesia. It could be used for biomass feedstock for syn-gas producing with gasification process. Wood sawdust could be alternative ways for replacing other biomass feedstock that hard to find for biomass gasification processing, it has good high heating value (HHV) of abouts 18.75 MJ/kg. Besides that open top downdraft gasifier is one of a kind biomass gasifier/reactor for syn-gas producing. It had better with the other gasifier for syn-gas producing; such as cross draft gasifier and updraft gasifier because for micro-grid electricity it has lower cost for designing and maintaining. Syn-gas is a synthetic gas that contains several elements of hydrocarbons, such as CO (carbon monoxide), CH4 (methane) and H2 (hydrogen). It could be useful for combining with internal combustion engine for producing micro-grid electricity. Syn-gas could be alternative fuel to replace gasolines or diesels fuel for internal combustion engine that converted to electrical generator as prime mover power. At this simulation study we get the result of mole fractions for syn-gas productivity from wood sawdust feedstock by using ASPEN Plus software is CO (1.622%), CH4 (6.722%), H2 (12.448%). At the end of the calculations we get HHV of syn-gas is 4.47 MJ/Nm3, gasification efficiency (Xcge) is 20% and amount of carbon in wood sawdust that convert to gaseous (Xc) is 0.43%. Simulation study by using ASPEN Plus software could be more useful for resulting syn-gas productivity without any problems. For academic communities, simulation study by using software could be solutions when we have no more cost for practicing in the workshop. ]]>
