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
176 Documents
<![CDATA[Design of Balance Control System for Quadcopter Drone Using Ziegler-Nichols PID Method ]]>
<![CDATA[Widiyanto, Sinung]]>;
<![CDATA[Taufiqurrohman, Muhammad]]>;
<![CDATA[Suhirwan, Suhirwan]]>
<![CDATA[ IPTEK The Journal of Engineering Vol 11, No 3 (2025) ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian kepada Masyarakat ]]>
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DOI: 10.12962/j23378557.v11i3.a23012
<![CDATA[Unmanned Aerial Vehicles (UAVs) are currently experiencing rapid development for both general and military applications. Among the various types of UAVs, the quadcopter stands out as a multirotor aircraft capable of vertical take-off and landing (VTOL). The primary factors affecting the imbalance of a quadcopter typically include payload weight and wind disturbances. The payload carried by the quadcopter can lead to instability during flight, while wind, as an external factor, significantly affects the aircraft’s stability. Irregular wind direction and speed can shake the quadcopter's body, resulting in unstable flight conditions. Developing a quadcopter that remains stable during flight, selecting an appropriate control method is crucial to achieve the desired balance. One effective approach for controlling brushless motor speed is the Proportional-Integral-Derivative (PID) control method. Among various PID tuning methods, the Ziegler-Nichols method is considered effective for this application.Based on this study, the control of the roll (ɸ) and pitch (θ) angles of the quadcopter yielded the following PID parameters: Kp = 15, Ki = 0.55, and Kd = 0.13. The results indicate that the quadcopter has not yet achieved perfect stability in flight. This research represents an initial stage in designing a quadcopter balance control system using the Ziegler-Nichols PID tuning method.]]>
<![CDATA[Tensile Performance of Inter-Module Connections for Modular Steel Buildings Using Finite Element Method ]]>
<![CDATA[Shoifah, Umi Arifatus]]>;
<![CDATA[Husin, Nur Ahmad]]>;
<![CDATA[Tajunnisa, Yuyun]]>
<![CDATA[ IPTEK The Journal of Engineering Vol 11, No 3 (2025) ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian kepada Masyarakat ]]>
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DOI: 10.12962/j23378557.v11i3.a23072
<![CDATA[Steel modular construction is an innovative technology that uses prefabricated volumetric module units manufactured in a factory and assembled on site via inter-module connections. However, this system's application in high-rise buildings is limited because the structural performance is strongly influenced by the inter-module connection mechanism. This technology uses a translational spring model to transfer loads between modules through inter-module connections. This approach uses threaded steel rod components, connection plates, shear keys, shear plates, and tie plates. This research aims to determine the maximum tensile capacity of the connection. It also aims to study stress distribution due to tensile forces and failure modes in vertical modular connections. This research uses the finite element method (FEM) to perform numerical analysis by applying monotonic loads. Simulation results indicate that the connection's maximum tensile capacity is 307.48 kN, distributed among two rods with capacities of 153.74 kN each at a displacement of 23.2 mm. The rod undergoes elastic deformation up to Fy = 900 MPa, followed by a plastic phase up to nearly Fu = 1,100 MPa, causing permanent strain and necking. Tensile failure occurred due to plasticity and necking conditions.]]>
<![CDATA[SIGN AND IMPLEMENTATION OF ELECTRICAL SISTEMS FOR BREAD DOUGH DEVELOPMENT PROOFER TECHNOLOGYS BASED ON MICROCONTROLLER WITH PID CONTROL FOR DONUT DOUGH ]]>
<![CDATA[Mashuri Mashuri]]>;
<![CDATA[Ika Silviana Widianti]]>;
<![CDATA[Bambang Sampurno]]>;
<![CDATA[Hendro Nurhadi]]>;
<![CDATA[Muhammad Syaiful Hakim]]>
<![CDATA[ IPTEK The Journal of Engineering Vol. 11 No. 3 (2025) ]]>
Publisher : <![CDATA[Pusat Publikasi Ilmiah, Institut Teknologi Sepuluh Nopember. ]]>
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<![CDATA[The proofing process is an essential step in bread-making, where the dough is allowed to rest for the gas content to develop and form a soft structure. However, many small-scale bread producers still rely on manual methods for proofing, leading to unstable temperature and humidity levels and longer production times. This study focuses on developing an electrical system for a bread proofer that can stabilize temperature and humidity during the proofing process. The system includes an Arduino Mega microcontroller with a DHT22 sensor for real-time temperature and humidity detection, an I2C LCD for monitoring, and a potentiometer for setting the desired temperature and humidity values. To achieve stability, a PID control system is used. The results show that the system can stabilize at a temperature of 40.10oC and humidity at 80-90RH for approximately 38.4 minutes. This electrical system offers an effective solution for optimizing the proofing process in bread production.]]>
<![CDATA[Modification of Paving Block Molding Machine with the Addition of an Automatic Control System Based on a Programmable Logic Controller (PLC) ]]>
<![CDATA[Mashuri Mashuri]]>;
<![CDATA[Bambang]]>;
<![CDATA[Andri Darmawan]]>;
<![CDATA[Laksita Aji Safitri]]>
<![CDATA[ IPTEK The Journal of Engineering Vol. 11 No. 3 (2025) ]]>
Publisher : <![CDATA[Pusat Publikasi Ilmiah, Institut Teknologi Sepuluh Nopember. ]]>
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<![CDATA[Company X is a paving block molding machine fabrication company in Surabaya. However, the machine still has some shortcomings because it is still conventional or manually operated. Some of these shortcomings, such as being still prone to human error and being less consistent when operating, can affect the results of the amount of production. From this phenomenon, automation is very important in the industrial world. Therefore, by referring to previous phenomenon, through this research, an automatic control system is made on paving block molding machine using PLC. The results showed that PLC succeeded in developing a system that works automatically on the machine. Then, the ladder diagram used several instructions, including interlock, timer, counter, and set reset according to how the machine works. Then, the PLC-based automatic control system has a shorter cycle time than the original manual machine. Cycle time has decreased by 15.4%. From this decrease in cycle time, if simulated related to production capacity, an automatic control system can increase the production per hour by 300 pcs more than the manually operated machine.]]>
<![CDATA[Tensile Performance of Inter-Module Connections for Modular Steel Buildings Using Finite Element Method ]]>
<![CDATA[Umi Arifatus Shoifah]]>;
<![CDATA[Nur Ahmad Husin]]>;
<![CDATA[Yuyun Tajunnisa]]>
<![CDATA[ IPTEK The Journal of Engineering Vol. 11 No. 3 (2025) ]]>
Publisher : <![CDATA[Pusat Publikasi Ilmiah, Institut Teknologi Sepuluh Nopember. ]]>
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<![CDATA[Steel modular construction is an innovative technology that uses prefabricated volumetric module unitsmanufactured in a factory and assembled on site via inter-module connections. However, this system's applicationin high-rise buildings is limited because the structural performance is strongly influenced by the inter-moduleconnection mechanism. This technology uses a translational spring model to transfer loads between modules throughinter-module connections. This approach uses threaded steel rod components, connection plates, shear keys, shearplates, and tie plates. This research aims to determine the maximum tensile capacity of the connection. It also aimsto study stress distribution due to tensile forces and failure modes in vertical modular connections. This researchuses the finite element method (FEM) to perform numerical analysis by applying monotonic loads. Simulation resultsindicate that the connection's maximum tensile capacity is 307.48 kN, distributed among two rods with capacities of153.74 kN each at a displacement of 23.2 mm. The rod undergoes elastic deformation up to Fy = 900 MPa, followedby a plastic phase up to nearly Fu = 1,100 MPa, causing permanent strain and necking. Tensile failure occurred dueto plasticity and necking conditions.]]>
<![CDATA[Site-Specific Seismic Hazard Assessment and Ground Motion Selection for Nonlinear Time History Analysis ]]>
<![CDATA[Faradina Safiraa]]>;
<![CDATA[Yuyun Tajunissa]]>;
<![CDATA[Muhammad Sigit Darmawan]]>;
<![CDATA[Hendra Wahyudi]]>
<![CDATA[ IPTEK The Journal of Engineering Vol. 11 No. 3 (2025) ]]>
Publisher : <![CDATA[Pusat Publikasi Ilmiah, Institut Teknologi Sepuluh Nopember. ]]>
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<![CDATA[This journal aims to study a comprehensive methodology involving Deterministic Seismic Hazard Analysis (DSHA), site-specific ground motion selection, spectral matching, and nonlinear dynamic analysis on Beribis Kendeng Waleri Fault. Seven strong ground motion records were selected from the PEER NGA-West2 database and spectrally matched to the target response spectrum derived from DSHA parameters. Local site effects were incorporated through a site response analysis using detailed subsurface soil data, which classified the site as Class E (very soft soil). The resulting surface-level acceleration time histories were used in nonlinear time history analysis to assess structural performance.]]>
<![CDATA[Comprehensive Study on Cr(VI) Adsorption and Regeneration Behavior of Alkali-Treated Wood Charcoal: Isotherms and Kinetics Models ]]>
<![CDATA[Afandy, Moh. Azhar]]>;
<![CDATA[Sawali, Fikrah Dian Indrawati]]>
<![CDATA[ IPTEK The Journal of Engineering Vol. 11 No. 2 (2025) ]]>
Publisher : <![CDATA[Pusat Publikasi Ilmiah, Institut Teknologi Sepuluh Nopember. ]]>
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<![CDATA[The present study considers the adsorption and regeneration behavior of alkali-treated wood charcoal (WC-NaOH and WC-KOH) for Cr(VI) removal. Adsorption isotherms (Langmuir, Freundlich, Temkin, and Dubinin-Raduskevich) and kinetics (Pseudo-first-order and Pseudo-second-orderare being investigated utilizing a non-linear method that provides precise parameter prediction and mechanism elucidation. The outcomes suggested that both WC-NaOH and WC-KOH exhibit good Cr(VI) removal efficiency, with the Langmuir model best explaining the adsorption phase, indicating single-layer adsorption. The kinetic study revealed that the Pseudo-second-order model aligns remarkably well with the data, thereby affirming that chemical adsorption is the predominant mechanism in consideration. A comparative analysis revealed that WC-KOH exhibits a higher amount of adsorption than WC-NaOH, attributable to its enhanced larger surface area as well as micro-porous structure.. Regeneration studies showed the possibility of reuse of both adsorbents. It shows the efficiency of alkali-treated wood charcoal for Cr(VI) decontamination and the advantages of non-linear modeling in adsorption experiments.]]>
<![CDATA[Application of Electrocoagulation in Stabilizing pH and Removing Pollutants from Domestic and Urban Wastewater Using Aluminum Electrodes ]]>
<![CDATA[Kaloka, Ardista Izdhihar]]>;
<![CDATA[Faizah, Nurul]]>;
<![CDATA[Arifin, Rizal]]>;
<![CDATA[Aulia, Anisa Fatma]]>;
<![CDATA[Putra, Muhammad Benaldo Anugrah]]>;
<![CDATA[Wati, Ni’mah]]>;
<![CDATA[Prayadi, Icha Nur]]>
<![CDATA[ IPTEK The Journal of Engineering Vol. 11 No. 2 (2025) ]]>
Publisher : <![CDATA[Pusat Publikasi Ilmiah, Institut Teknologi Sepuluh Nopember. ]]>
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<![CDATA[This study investigates the application of electrocoagulation using aluminum electrodes to stabilize pH and remove pollutants from various real wastewater sources in Surabaya, Indonesia, including laundromats, fast food restaurants, campus canteens, mechanical workshops, and tofu industries. A batch-mode electrocoagulation process was conducted using 10 A of current over 60 minutes, and the performance was evaluated based on pH changes, turbidity, and Total Suspended Solids (TSS) removal. The highest TSS removal efficiency of 98% was observed in machine shop wastewater, while laundromat samples also achieved high performance with 97% reduction. Electrocoagulation demonstrated strong pH stability in effluents with buffering compounds such as those from campus canteens and workshops, whereas fluctuating pH and turbidity levels were found in tofu and fast-food effluents, indicating the need for process optimization. Turbidity decreased significantly across all samples, confirming effective floc formation during electrolysis. The findings confirm that electrocoagulation is a promising method for treating both domestic and urban wastewater. However, integrating additional processes such as adsorption or filtration is recommended to enhance performance for complex wastewater compositions and ensure compliance with discharge standards.]]>
