IPTEK The Journal of Engineering
IPTEK The Journal of Engineering (E-ISSN: 2337-8557) is an academic journal on the issued related to engineering and technology. IPTEK The Journal of Engineering published first time in August 2014. From 2014-2018 (Volume 1-4) IPTEK The Journal of Engineering publish three issues (numbers) annually (April, August, and December). Since 2019 published annually in April and August. It is open to all scientist, researchers, education practitioners, and other scholars. Therefore this journal welcomes various topics in different engineering disciplines. Our target is to reach all universities, research centers and institutes in the globe. Call for Papers IPTEK The Journal of Engineering is an open-access journal, which means that visitors all over the world could read, download, cite, and distribute papers published in this journal for free. We adopt a peer-review model, which insured fast publishing and convenient submission. In addition to peer-reviewed original research papers, the Editorial Board welcomes original research reports, state-of-the-art reviews and communications in the broadly defined field of engineering science and technology. Theses, dissertations, research papers, and reviews are all acceptable for publication. All topics should relevant to the issues faced by industries, governments, and communities. The broad-based topics may be covered by the following knowledge areas: Computer Engineering and Information Systems (Telematics, Algorithms and Programming, Network Based Computing, Smart Computing and Vision, Intelligent Information Management, Computer Architecture and Networking, Applied Modeling and Computing, Graphics Interaction and Games, Software engineering, Information Technology Infrastructure and Security, Information Systems Management, Data Engineering and Business Intelligence, Data Acquisition and Information Dissemination, Enterprise System, and Smart Cities and Cyber Security) Civil Infrastructure Engineering (Hydrotechnics and Surveying, Construction Implementation Management, Building Materials and Structures, and Transportation and Geotechnics) Mechanical Engineering (Energy Convertion, Metallurgical and Materials Engineering, Mechanical Design, and Manufacture) Electrical Engineering Automation (Cyber Physical, Automation, and Industrial Robots, Programmable Logic Controller and Control System, Antennas and Propagation, Instrumentation, Measurement and Power System Identification, Multimedia Telecommunications Network, Multimedia Communication, Electric Energy Conversion, Electric Power System Simulation, High voltage, System and Cybernetics, Microelectronics and Embedded Systems, Biocybernetics, Instrumentation and Biomedical Signal Processing, Multimedia Computing and Machine Intelligence, and Digital Signal Processing) Chemical Engineering (Applied Chemistry, Biochemical and Bioprocess, Advance Functional Materials and Analysis, Thermodynamic, Chemical Reaction, Material and Nanocomposite, Bioenergy, Wastewater Treatment, Process Integration, Fluid Mechanic, and Sustainable Industrial Systems) Instrumentation Engineering (Control Instrumentation, Measurement Instrumentation, Photonic Engineering, Vibration and Acoustics, and Embedded Systems and Physical Cyber) Business Statistics (Business Analytic, and Quality and Productivity Engineering) And physical, chemical, biological, and environmental sciences that are directly related to engineering.
Articles
144 Documents
<![CDATA[The Production of Gelatin from Snapper Scales (Lutjanus camphecanus Sp.) through Enzymatic Pretreatment ]]>
<![CDATA[Warlinda Eka Triastuti]]>;
<![CDATA[Suprapto Suprapto]]>;
<![CDATA[Elly Agustiani]]>;
<![CDATA[Lailatul Qomariyah]]>;
<![CDATA[Agung Subyakto]]>;
<![CDATA[Treisnaning Widasgantri]]>;
<![CDATA[Marchel Abednego Septa K]]>
<![CDATA[ IPTEK The Journal of Engineering Vol 8, No 1 (2022) ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian kepada Masyarakat ]]>
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DOI: 10.12962/j23378557.v8i1.a12860
<![CDATA[Fish wastes such as fish bones and scales have a potential to be used as a gelatin source. It can be used as an alternative material to replace pork or bovine which ordinarily conflicted with religion issue. Gelatin from fish has different characteristics compared with mammalian source. It has several advantageous properties such as high amount of hydrophobic amino acids, less proline and hydroxy proline, lower gelling ability, and melting point. In this study, gelatin was produced from fish waste especially snapper scales using the bromelain enzyme at the pre-treatment stage to improve its characteristic. The snapper scales soaking in hot water at 80⁰C for about 30 minutes to remove the fat which attached the scales. A pre-treatment has been conducted using bromelain enzyme solution at various concentrations of 1%, 2%, 3%, 4% and 5% for 6 hours to remove non-collagenous proteins and loosen the bonds of the fish scales. The next step is demineralization using a 15% concentration of citric acid solution for 3 days. The ossein formed in the demineralization stage was then hydrolyzed at 50⁰C and 70⁰C for 9 hours with stirring at 300 rpm. The best gelatin yield was obtained from the pretreatment of bromelain enzyme solution with a concentration of 3% at a hydrolysis temperature of 70⁰C with a yield of 9.13%, pH value of 3.86, water content of 8%, ash content of 0.80%. FTIR spectra shows the presence of functional groups correspond to gelatin formation, such as carbon, hydrogen, hydroxyl group (O-H), carbonyl group (C=O), amine group (N-H) and alkene group (C=C). The heavy metal content test showed that the gelatin contained no heavy metal content of lead (Pb), mercury (Hg), cadmium (Cd) and arsenic (As).]]>
<![CDATA[Optimation Front Upright Racing Car Using Finite Element Analysis ]]>
<![CDATA[Fitra Bagus Hendi Prabowo]]>;
<![CDATA[Rizaldy Hakim Ash Shiddieqy]]>;
<![CDATA[Winarto Winarto]]>;
<![CDATA[Nur Husodo]]>;
<![CDATA[Mahirul Mursid]]>;
<![CDATA[Bayu Adhi Saputro]]>
<![CDATA[ IPTEK The Journal of Engineering Vol 8, No 1 (2022) ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian kepada Masyarakat ]]>
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DOI: 10.12962/j23378557.v8i1.a10785
<![CDATA[Upright is part of the car's suspension system that plays an important role in creating and comforting the car. Supporting driving safety, upright components must be designed to be light but strong to withstand loading when the car is in conditions of acceleration, deceleration and cornering. Not only strong as a benchmark, but components must also be lightweight, so we need a method, namely a topology optimization method. Using finite element software makes the optimization process very easy and very fast with maximum accuracy. The process is by inputting the model from CAD software, defining materials, input constraints and vector styles, meshing process, and finally the solution process. From the simulation results, it will be known the value of the solution in the form of stress, deformation and safety factor of the upright component. From several topology optimization designs, they will be compared to find out which is the best design which will be used as a design recommendation. By referring the result, 43% mass reduction is the best optimum design, its safety factor is 4.956.]]>
<![CDATA[Vanname Shrimp Health Monitoring System Using Internet of Things-based Image Processing Method ]]>
<![CDATA[Ummul Khoiriyah]]>;
<![CDATA[Herry Sufyan Hadi]]>;
<![CDATA[Putri Yeni Aisyah]]>
<![CDATA[ IPTEK The Journal of Engineering Vol 8, No 1 (2022) ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian kepada Masyarakat ]]>
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DOI: 10.12962/j23378557.v8i1.a10596
<![CDATA[Viruses are known to have attacked vaname shrimp, shrimp infected with the virus showed several abnormal things, including the appearance of a reddish color on the shrimp's body, and redness on the shrimp's tail. In healthy Vannamei Shrimp, the shrimp body shows a brownish color, and there is no reddish color on the tail and body of the shrimp. Implementation of a prototype of a shrimp health monitoring system needs to be done to determine the health condition of shrimp. This final project will produce a prototype that can monitor shrimp health, by adopting Artificial Intelligent (AI) learning technology for image processing and recognition. Presenting a prototype consisting of hardware and software analysis of healthy Vannamei shrimp for the purpose of monitoring the health of Vannamei shrimp thereby increasing the productivity of the Internet of Things (IoT) based ponds.]]>
<![CDATA[Bioethanol Production From Tapioca Solid Waste In A Batch Reactor ]]>
<![CDATA[Soeprijanto soeprijanto]]>;
<![CDATA[Siti Wulandari]]>;
<![CDATA[Mohamad Dwi Alfaridzi]]>
<![CDATA[ IPTEK The Journal of Engineering Vol 8, No 1 (2022) ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian kepada Masyarakat ]]>
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DOI: 10.12962/j23378557.v8i1.a10409
<![CDATA[Tapioca solid waste is a by-product of processing tapioca flour in the form of dregs and contains a lot of carbohydrates which can be developed benefits by treating the waste through an enzymatic process by hydrolysis as bioethanol. Bioconversion technology is an enzymatic conversion of materials by hydrolysis which can be used to increase the value of tapioca solid waste. The purpose of this research is to convert starch from solid waste of tapioca flour industry into bioethanol through enzyme hydrolysis and fermentation processes. This study was conducted to determine the effect of the ethanol content produced from the concentration of 50 gr/l, 100 gr/l, and 150 gr/l waste of tapioca concentrations with 10ml, 15, and 20ml enzymes. The cassava samples were hydrolyzed using Alpha-amylase enzymes with various concentrations of 10ml, 15, and 20ml and 10ml Glucoamylase enzymes. In the liquefaction process, glucose content is analyzed every 30 minutes for 2 hours, then in the saccharification process, glucose content is analyzed every 30 minutes for 3 hours. The acid hydrolyzate solution was adjusted to pH 4.5 and then fermented for 3 days and analyzed every 12 hours. From the results of the study, it was found that the optimal treatment variable was the concentration variable of 150 gr/l waste of tapioca (solid waste tapioca flour) with a concentration of 20 ml of Alpha-amylase enzyme. The ethanol content obtained from the fermentation process is 3.98% (v/v).]]>
<![CDATA[Hydroxyapatite Based Material: Natural Resources, Synthesis Methods, 3D Print Filament Fabrication, and Filament Filler ]]>
<![CDATA[Lulu Sekar Taji]]>;
<![CDATA[Deden Eko Wiyono]]>;
<![CDATA[Achmad Dwitama Karisma]]>;
<![CDATA[Agus Surono]]>;
<![CDATA[Eva Oktavia Ningrum]]>
<![CDATA[ IPTEK The Journal of Engineering Vol 8, No 1 (2022) ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian kepada Masyarakat ]]>
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DOI: 10.12962/j23378557.v8i1.a12830
<![CDATA[Hydroxyapatite is a biomaterial that has been recognized in terms of hard tissue engineering due to its similarity in composition to bioapatite. Moreover, abundant resources and diverse synthesis methods make hydroxyapatite easy to produce. The application in terms of 3D print-based network engineering is also being intensively explored due to hydroxyapatite scaffold fabrication process flexibility. In this review, various hydroxyapatite from natural sources, synthesis methods, hydroxyapatite-based 3D print filament fabrication techniques, as well as fillers used in the production of filaments are discussed.]]>
<![CDATA[IoT-based for Monitoring and Control System of Composter to Accelerate Production Time of Liquid Organic Fertilizer ]]>
<![CDATA[Safira Firdaus Mujiyanti]]>;
<![CDATA[Putri Yeni Aisyah]]>;
<![CDATA[Adelia Firsty Salsabilla]]>;
<![CDATA[Tiffany Rachmania Darmawan]]>;
<![CDATA[Abdul Rohid]]>
<![CDATA[ IPTEK The Journal of Engineering Vol 8, No 2 (2022) ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian kepada Masyarakat ]]>
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DOI: 10.12962/j23378557.v8i2.a14081
<![CDATA[The composter is a method to produce the liquid organic fertilizer. The manual process certainly takes a long time. Thus, the automatic composter proposed in this research is equipped with a monitoring and control system. In producing liquid organic fertilizer using a composter, there are several things that can affect the maturity of the fertilizer, including pH and temperature factors. The reference temperature for produce liquid organic fertilizer in the composting process ranges from 30-40 oC, while the pH in the composter must be in the range of 4.5-6.5. This composter is designed to be able to carry out automatic mixing equipped with a temperature control system that serves to maintain temperature stability in the compost media according to the reference temperature. The composter design is equipped with a DHT 11 sensor as a temperature sensor, a pH sensor and the ESP 32 as the controller. Internet of Things (IoT) makes this system easy to control using android. Producing liquid organic fertilizer compered between the automatic and manual process. The results show that liquid organic fertilizer can be produced faster, has a better quantity and quality than the manual process.]]>
<![CDATA[Optimization of Ethylene Glycol Plant Heat Exchanger Network with Non-Catalytic Hydration Process from Ethylene Oxide ]]>
<![CDATA[Muhammad Garin]]>;
<![CDATA[Elsabella Adiguna]]>;
<![CDATA[Suprapto Suprapto]]>
<![CDATA[ IPTEK The Journal of Engineering Vol 8, No 2 (2022) ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian kepada Masyarakat ]]>
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DOI: 10.12962/j23378557.v8i2.a14072
<![CDATA[Heat integration is a method to increase energy efficiency in a series of processes by utilizing the energy potential of other process units, so that Maximum Energy Recovery (MER) will be achieved. One way to perform heat integration is through the design of a heat exchanger network (HEN). The HEN design simulation in this study was carried out in an ethylene glycol plant where in the process there is still a lot of wasted and unused heat. After the HEN simulation was applied, it was found that the heating value decreased by 59% from the existing condition, while the cooling value decreased by 79% from the existing condition. This causes the operation cost for utilities to decrease drastically but increase the capital cost due to the addition of 2 heat exchangers.]]>
<![CDATA[Battery Protection System Against Undervoltage and Overvoltage in Off-Grid Systems Photovoltaic ]]>
<![CDATA[Dwi Nur Fitriyanah]]>;
<![CDATA[Nicken Ayu Febrianti Soeyoto]]>;
<![CDATA[Imam Abadi]]>
<![CDATA[ IPTEK The Journal of Engineering Vol 8, No 2 (2022) ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian kepada Masyarakat ]]>
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DOI: 10.12962/j23378557.v8i2.a14009
<![CDATA[Electrical energy at this time is widely used by most humans, of course also disturbances in the distribution of electricity cause inhibition of daily human activities. Disturbances that occur can be classified into various kinds, one example is Undervoltage and overvoltage. Of course, these disturbances can arise when the use of electrical loads that are sensitive to damage. To secure electrical loads that are sensitive to damage, a control system is made overvoltage and undervoltage using a microcontroller Arduino Mega and the actuator is a relay. This research tries to solve the problem of over voltage, under voltage, and unbalanced voltage with a visual basic-based voltage protection system. This system research uses visual basic as an interface and as a data logger to facilitate operators in analyzing disturbances, and with the help of the Arduino Mega2560 microcontroller which can be used to process and send data to the visual base. Thus, this research is expected to help users to e easily monitor and analyze disturbances.]]>
<![CDATA[Design of Horizontal Axis Wind Turbine Simulator Using Smart Monitoring System ]]>
<![CDATA[Ahmad Fauzan Adziimaa]]>;
<![CDATA[Ilham Kurniawan]]>;
<![CDATA[Anida Oktavia Rachmadianti]]>
<![CDATA[ IPTEK The Journal of Engineering Vol 8, No 2 (2022) ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian kepada Masyarakat ]]>
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DOI: 10.12962/j23378557.v8i2.a12848
<![CDATA[Wind turbine shows the direct utilization of mechanical energy and occurs as follows: the wind that moves hitting the wing of the ferris wheel causes the ferris wheel to spin. The rotation of the ferris wheel causes the formation of mechanical energy, while the conversion of wind energy into electrical energy is as follows: the wind through the ferris wheel plants causes the ferris wheel to spin. The spin of the ferris wheel causes the generator to spin. Inside the wind energy generator is converted into electrical energy. In the Final Task that did the design of this prototype, do a comparison between the horizontal axis wind turbine with variations in the number of blades, with blade variations totaling 3 and 5. So, there will be 2 wind turbines with different numbers of blades in one prototype. Comparisons are made to find out the performance carried out by the two wind turbines that aim as a learning medium in the Measurement Instrumentation Laboratory. This final task is divided into five stages: including, tool design, tool characterization, tool validation, tool testing, and comparing tools. The process of designing tools that are divided into two methods, namely covering the formation of hardware and the formation of software. From the graph data contained in the discussion shows the performance with the propeller amounting to 5 produces a higher current and voltage output and rpm on this prototype scale than the number of propellers 3, with the value for example at the acceleration of fan 5 with a wind speed of 3.9 m / s on the propeller amounting to 5 resulting in an average current value of 3.2 mA, a voltage of 1.98 V, and rotor rotation of 234 RPM. While at the number of propellers 3 with the same wind speed produces smaller current output, voltage and rpm, which is obtained an average current of 2.3 mA, a voltage of 1.88 V, and rotor rotation of 243 RPM.]]>
<![CDATA[Design and Construction Pond Temperature Control System and Automatic Nile Tilapia Fish Feeder for Aquaponics ]]>
<![CDATA[Putri Yeni Aisyah]]>;
<![CDATA[Dyah Ayu Permadani]]>
<![CDATA[ IPTEK The Journal of Engineering Vol 8, No 2 (2022) ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian kepada Masyarakat ]]>
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DOI: 10.12962/j23378557.v8i2.a14087
<![CDATA[Expansion of land for the development of human civilization reduces natural ecosystems. Especially land for agriculture and fisheries in densely populated areas. The more the population, the more food needs. One way to deal with this problem is aquaponic cultivation. Aquaponics is a modern practical farming system that integrates plant cultivation systems with aquatic animal cultivation. In aquaponics cultivation there are factors that need to be considered. One of these success factors is the Temperature and Automatic Feeder in the pond. To get the temperature needed by the fish, temperature control is carried out using the DS18B20 sensor. When the fish pond temperature drops below 28°C, the heater will automatically turn on to raise the pond temperature, and when the pond temperature rises above 32°C, the peltier will turn on and start lowering the pond temperature. Feeding is one of the success factors for aquaponics. If the feed given does not match the weight and age of the fish, the growth of the fish can be disrupted, causing the fish to die. Automatic feeding uses the RTC module as the set time and the servo motor as the opening valve for the fish feed container. Fish were fed at 08.00, 12.00, and 17.00. The average error obtained after validating the DS18B20 sensor is 0.61. The accuracy obtained is 98.05%. The ratio of fish RGR before and after the control system was installed was 7.14% and 11.2 The fish FCR values before and after the control system was installed were 12.50% and 21.07%. The plant growth rates before and after the control system was installed were 22.9% and 33.71%.]]>
