Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi
Jurnal ini mempublikasikan artikel ilmiah berbasis penelitian, studi kasus, articles review, rekayasa dan inovasi yang mencakup teoritis maupun praktis serta pengembangannya. Topik artikel ilmiah yang dimuat ASIIMETRIK mencakup bidang Arsitektur, Teknik Sipil, Teknik Industri, Teknik Informatika, Teknik Mesin dan Teknik Elektro.
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<![CDATA[Taguchi Design of Experiment (DoE) for Evaluating TIG-welding Parameter Variations on Tensile-shear Load and Hardness Using Stainless Steel 304 Material ]]>
<![CDATA[Siswanto]]>;
<![CDATA[Sukarman]]>;
<![CDATA[Muyladi, Dodi]]>;
<![CDATA[Amir]]>;
<![CDATA[Abdulah, Amri]]>;
<![CDATA[Putra, Ean Deka]]>
<![CDATA[ Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 6 Nomor 2 Tahun 2024 ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Pancasila ]]>
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DOI: 10.35814/asiimetrik.v6i2.6569
<![CDATA[This article delves into the intricacies of optimizing the TIG welding process using stainless steel 304 (SUS 304) material, with particular emphasis on small-scale industries that are heavily reliant on TIG welding, especially in the production of household equipment and fences. The objective of this research is to enhance the tensile shear load (T's load) through the Taguchi Design of Experiment (DoE), which takes into account welding current, gas flow rate, and electrode diameter as primary parameters. This study evaluates T's load and hardness across the welding zone, which includes the heat-affected zone (HAZ) and base metal. The study was conducted using a Stahlweld inverter welding machine operating at 220 V/50 Hz, and a maximum T's load of 1545.1 kgf was achieved in the fourth iteration. The optimization of T's load was carried out using SN ratio analysis and involved setting the welding current to level II, gas flow rate to level I, and electrode diameter to level II following the Taguchi DoE design. The hardness peaks in the weld area decreased in the HAZ and reached their lowest point in the base metal. These findings provide valuable insights into optimizing TIG welding parameters for thin stainless steel 304 materials, which supports Sustainable Development Goal 9 (industry, innovation, and infrastructure).]]>
<![CDATA[Optimization of Savonius Turbine Performance with Variations in Blade and Shaft Spacing on the Coast of Sarmi Regency, Papua Province ]]>
<![CDATA[Numberi, Johni Jonatan]]>;
<![CDATA[Joni]]>;
<![CDATA[Allo, Obed Rante]]>;
<![CDATA[Griapon, Nourish C.]]>;
<![CDATA[Ansanay, Yane A.]]>;
<![CDATA[Ramandei, Lazarus]]>;
<![CDATA[Wanane, Wilfriedf]]>;
<![CDATA[Allo, Rombe]]>;
<![CDATA[Manalu, Janviter]]>;
<![CDATA[Safanpo, Apolo]]>;
<![CDATA[Hartiningsi, Endang]]>;
<![CDATA[Liga, Marthen]]>;
<![CDATA[Karapa, Enos]]>;
<![CDATA[Lefaan, Yosef]]>;
<![CDATA[Setiadji, Prihananto]]>;
<![CDATA[Innah, Herbert]]>
<![CDATA[ Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 6 Nomor 2 Tahun 2024 ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Pancasila ]]>
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DOI: 10.35814/asiimetrik.v6i2.6587
<![CDATA[The use of wind energy as one of the producers of electrical energy is done by converting mechanical energy into electrical energy from wind turbines, one of which is the savonius wind turbine. Savonius wind turbines in use are able to work at low wind speeds. This study aims to evaluate the potential of wind energy that can be generated by optimization in savonius wind turbines by measuring the power generated by varying the gap distance between Balde and turbine shafts and analyzing the most optimal power as a source of power generation on the coast of Sarmi Regency, Papua Province. The analysis method in this study is field surveys, wind speed measurements, power optimization, BHP and tool efficiency carried out with variations in the distance between the blade and turbine shaft, namely 5 cm, 10 cm and 15 cm. The results of this study stated that the most optimal and stable results on the power generated by the turbine as well as the BHP value and the best tool efficiency were a distance variation of 15 cm with an average power value produced (P0) of 15.55 Watts, an average BHP value of 0.56 Watts and an average efficiency value of 7.59%.]]>
<![CDATA[Analysis of the Children’s Playground with Blue Open Space Concept in Bajau Ethnic Settlement Rampa Lama Kotabaru ]]>
<![CDATA[Leonard]]>;
<![CDATA[Siwi, Samsu Hendra]]>;
<![CDATA[Fatimah, Titin]]>
<![CDATA[ Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 6 Nomor 2 Tahun 2024 ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Pancasila ]]>
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DOI: 10.35814/asiimetrik.v6i2.6592
<![CDATA[The Rampa Lama Village settlement is a settlement located in a coastal area at the ebb and flow of sea water. This settlement is in the province of South Kalimantan and is located to the north of Kotabaru Regency. The population of Rampa Lama Village is 6,000 people with children aged 6-12 years old who received elementary school education totaled 364 children consisting of 181 boys and 183 girls. This has become a phenomenon regarding the limited children's playground space and its facilities that are safe, comfortable and have safety aspects for the users, in this case children when children play, the Rampa Lama Village settlement is a densely populated area with Public Open Space that can be used as a playground for children in the surrounding area. Public open space for the childrens Rampa Lama need open space blue concept because they are representing fisherman community. The purpose of this research is to analysis public open space for children in coastal areas by implementing a blue concept open space according to the child's character. A study uses a qualitative inductive method with a phenomenological approach. The results of the research were in the form of recommendations for the coastal area of Rampa Lama Village with the existing ethnic character of the Bajau tribe with observations that have been made where the character of the children's play space in the area is Blue Open playground and its application to Child Friendly Playground.]]>
<![CDATA[Analysis of Vibration Characteristics in 17-Inch Aluminum Alloy Wheel Rims Using Finite Element Method ]]>
<![CDATA[Wijaya, Victor Indra]]>;
<![CDATA[Ariyansah, Riyan]]>;
<![CDATA[Agusman, Delvis]]>;
<![CDATA[Rifky]]>;
<![CDATA[Heriyani, Oktarina]]>
<![CDATA[ Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 6 Nomor 2 Tahun 2024 ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Pancasila ]]>
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DOI: 10.35814/asiimetrik.v6i2.6620
<![CDATA[The wheel rim serves as a component designed to provide stability and necessary support for vehicle tires. The phenomenon of resonance occurring when the external vibration frequency approaches the natural frequency of the structure has the potential to increase vibration amplitude, which can lead to wheel rim damage. This study aims to investigate the shape patterns and natural frequencies of 17-inch aluminum alloy wheel rims, as well as to analyze the maximum total deformation that occurs. The finite element method is employed to simulate the vibration characteristic of 17-inch aluminum alloy wheel rims under various natural frequencies. Modifications to the wheel rim design are made by altering the spoke angle in variations of 5°, 10°, and 15°. The vibration characteristic data of the wheel rim was obtained through simulation using ANSYS software. The research findings indicate that the natural frequencies range from approximately 364.7 Hz to 723.21 Hz. Furthermore, the maximum total deformation values range from approximately 9.7 mm to 22.5 mm.]]>
<![CDATA[Line Stop Time Reduction through Dandori Evaluation in Plastic Injection Process Production ]]>
<![CDATA[Wibowo, Yohanes T.]]>;
<![CDATA[Pratama, Anggi]]>;
<![CDATA[Manurung, Vuko A. T.]]>
<![CDATA[ Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 6 Nomor 2 Tahun 2024 ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Pancasila ]]>
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DOI: 10.35814/asiimetrik.v6i2.6624
<![CDATA[A quality product is a product that is efficiently produced. Line stops should be minimized to ensure efficient production. This study found a high line stop in the area of plastic injection machines caused by dandori. The line stops account for about 6% of the total production time 5.3% of them caused by dandori. Dandori is a line stop due to tools changing within a production process. This study aims to reduce the line stop by 30% and uses a fishbone analysis enhanced by the 5W+1H method for further analysis to reduce this problem. Enhancing the fishbone diagram with 5W+1H analysis produces a positive result. As a written calculation, this improvement gives a 28% line stop reduction, but it provides an average of 32.5% in actual operation. The improvement succeeded in reducing line stops due to dandori. The final achievement of 32% has passed the target of a 30% reduction and also provides an excellent cost-benefit ratio value of 20.9.]]>
<![CDATA[Optimization of Dehumidification Air Flow Distribution in Temulawak Tray Dryer with Computational Fluid Dynamics ]]>
<![CDATA[Ridwan]]>;
<![CDATA[Apriansa, Farul]]>;
<![CDATA[Irawan, Rudi]]>
<![CDATA[ Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 6 Nomor 2 Tahun 2024 ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Pancasila ]]>
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DOI: 10.35814/asiimetrik.v6i2.6664
<![CDATA[Temulawak (Curcuma xanthorrhiza Roxb.), a member of the Zingiberaceae family, has long been recognized as a medicinal plant with a moisture content approximately 80-90%. The high moisture content of temulawak renders it challenging to store for extended periods without drying. Temulawak is susceptible to heat damage due to the potential for thermal degradation of its internal components. Accordingly, it can be concluded that low-temperature and low-air-humidity drying conditions are required. Furthermore, one of the most suitable methods is the use of a dryer that incorporates a dehumidification process. The objective of this research is to develop a temulawak dryer design and simulation variations of the incoming velocity of air flow to obtain the most optimal drying chamber by incorporating a vertical airflow channel. A design and simulation for a temulawak dryer were created using the 2022 version of SolidWorks software (flow simulation modul). The design started from drawing two-dimension, then three-dimension, and determining boundary condition and meshing. A fluid temperature of 35.7°C and a relative humidity (RH) of 22% were used to model the drying process at varying airflow velocities of 1.5 m/s, 2 m/s, and 2.5 m/s. The drying chamber, with dimensions of 676 mm x 406 mm and height of 806 mm, was designed using the type AISI 304 and achieved the most optimal airflow distribution results at a velocity of 2.5 m/s, exhibiting a relatively higher fluid temperature than the other two airflow velocity variation.]]>
<![CDATA[Preliminary Study on Wind Turbines for Power on Floating Net Cages ]]>
<![CDATA[Herlina]]>;
<![CDATA[Agustina, Sri]]>;
<![CDATA[Sariman]]>;
<![CDATA[Pratama, M. Akbar]]>;
<![CDATA[Azhary, M. Ichsan]]>
<![CDATA[ Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 6 Nomor 2 Tahun 2024 ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Pancasila ]]>
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DOI: 10.35814/asiimetrik.v6i2.6869
<![CDATA[Focus of this primary study is to investigate how efficient horizontal-axis wind turbines (HAWT) and vertical-axis wind turbines (VAWT) are in preserving floating net cages. The expansion of the aquaculture sector, which is increasingly dependent on advanced technologies like monitoring and data processing systems in open waters, need a reliable energy source. The investigation was carried out by manipulating wind speed, battery charging duration, and electrical load for both types of wind turbines in simulated field circumstances. Based on the test results, HAWT outperforms VAWT in generating a greater battery voltage and achieving a more consistent charging period at the same wind speed. The smallest voltage rise in HAWT is 2.2 m/s with a 5-minute 0% charging time and the maximum is 1.2 m/s with a 15-minute 38.1% charging time. While the VAWT demonstrates better stability under specific load conditions, the HAWT can generate substantial power throughout a wide range of wind speeds. This renders HAWT more appropriate for utilization in dynamic maritime applications, such as floating net cages.]]>
<![CDATA[Convective Coefficient and Evaporative in Forced Flow Solar Still ]]>
<![CDATA[Oktavian, Akbar]]>;
<![CDATA[Mugisidi, Dan]]>;
<![CDATA[Alamsyach, Rizky]]>;
<![CDATA[Heriyani, Oktarina]]>
<![CDATA[ Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 6 Nomor 2 Tahun 2024 ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Pancasila ]]>
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DOI: 10.35814/asiimetrik.v6i2.6937
<![CDATA[The water crisis is a significant global problem, with more than 2 billion people lacking water and 1.1 billion having no access to clean water. Desalination, a method of converting seawater into fresh water by removing salt, is a potential solution to help coastal populations. This study aims to determine the convection and evaporation heat transfer coefficients and the effect of condenser cooling water temperature on the evaporation process and the increase in freshwater condensate. The research methodology involved the analysis of heat and mass transfer in a solar desalination system. A desalination device was designed to test the evaporation process with seawater temperature heated using halogen lamp light. Results show that increasing seawater temperature from 27°C to 42°C results in condensation when the temperature reaches about 30°C, affecting the water surface pressure and evaporation rate. Evaporation and condensation efficiencies are affected by convection and evaporation heat transfer, resulting in a convection heat transfer (0.84296 W/m2. °C) and evaporation heat transfer coefficient (23.81353 W/m2.°C). This research demonstrates the potential of solar desalination technology in producing clean water.]]>
<![CDATA[IoT Based Remote Low Voltage Power Circuit Breaker System in Flood Areas ]]>
<![CDATA[Syafitri, Ainil]]>;
<![CDATA[Syarif, Kemil]]>
<![CDATA[ Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 6 Nomor 2 Tahun 2024 ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Pancasila ]]>
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DOI: 10.35814/asiimetrik.v6i2.6953
<![CDATA[In some housing complexes with traditional electrical installation systems, electrical substations are often located in the middle of the housing complex or an area affected by flooding, causing the substation to be submerged and potentially endangering flood victims from being electrocuted. Based on these conditions, a remote voltage breaker system is needed to cut the electricity off automatically when the water level has passed a set point. This remote low-voltage electricity breaker system in flood areas is a tool for disconnecting the electrical system by detecting the water level. It can be monitored remotely based on IoT using an Android-based application. Using the HCSR04 Ultrasonic sensor to detect the water level in each container with a reading distance ranging from 2 cm to 450 cm, Ultrasonic sensor measurements will determine whether the detected water level is dangerous or not if the condition is dangerous, namely the detected water level is higher than the set point. Then, the MCCB will trip automatically. A microcontroller will process data and display the water level on the smartphone using the Blynk application. This tool uses a Node MCU-type microcontroller equipped with an ESP8266 WiFi module that functions as a regulator of the components used. The Blynk application will display water level monitoring data detected by the ultrasonic sensor in centimetre units. In the Blynk application, there is also a widget button that triggers the MCCB manually remotely. Several tests carried out on ultrasonic sensors produce the lowest error value of 1.49%, and the maximum trip time is 2.07 seconds.]]>
<![CDATA[Diagnosing Voltage and Current Imbalance of Three-Phase Induction Motor with Artificial Neural Network Method ]]>
<![CDATA[Uden, Suparman]]>;
<![CDATA[Yahya, Sofian]]>;
<![CDATA[Tahtawi, Adnan Rafi Al]]>
<![CDATA[ Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 6 Nomor 2 Tahun 2024 ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Pancasila ]]>
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DOI: 10.35814/asiimetrik.v6i2.7063
<![CDATA[Industries today are increasingly using three-phase induction motors. It is an important tool for production continuity and progress. Power quality issues, such as voltage and current imbalance, are prevalent today and can lead to motor overheating and inefficiency. Even worse, interruptions can impede the production process, resulting in losses and higher repair costs. This study uses MATLAB and microcontroller-based Artificial Neural Network (ANN) methods to identify voltage and current imbalances in three-phase induction motors, thereby preventing significant damage and preserving the service life. ANN works by learning and classifying the collected data. The testing flow uses 30% of the data, while the training flow uses the remaining 70%. The classification results showed that 60.49% of the voltages were balanced, and 31.59% were unbalanced. We found an accuracy percentage of 99.51% for both balanced and unbalanced voltages, a mean squared error (MSE) of 0.0167, and a root mean squared error (RMSE) of 0.1294.]]>
