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Mohammad Adam Jerusalem
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INDONESIA
Journal of Engineering and Applied Technology
Published by Universitas Negeri Yogyakarta
ISSN : 27162257     EISSN : 27162265     DOI : https://doi.org/10.21831/jeatech
Core Subject : Engineering,
Automotive Engineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Mechanical Engineering
Journal of Engineering and Applied Technology (JEATech) is an open-access double-blind peer-reviewed journal of Engineering, Technology, and Applied Technology. Authors are invited to disseminate theoretical and practice-oriented topics relevant to: Electrical Engineering Electronic Engineering Informatics engineering Computer Science Mechatronics Engineering Mechanical Engineering Automotive Engineering Civil Engineering Industrial Engineering Applied technology related to the previous fields of engineering
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 61 Documents
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Energy balance of thermal and catalytic degradation processes of plastic waste for producing alternative fuel Sasongko, Beni Tri; Wisnu Wardhana, Prabuditya Bhisma; Kurniawan, Stephanus Danny; Susilo, Gunawan Budi
Journal of Engineering and Applied Technology Vol. 4 No. 2 (2023): (August)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v4i2.61334

Abstract

A simple thermal and catalytic degradation of polyethylene plastic waste has been carried out to produce alternative liquid fuel. Plastic of 1500 grams was pyrolyzed at a specific temperature of 450 °C. The gases were condensed in a water-cooled condenser and collected in a liquid container. Energy balance calculation was done where catalytic cracking with Y zeolite as catalyst seemed to be the best because the generated thermal energy from waste plastic oil was already higher than the required electric energy supplied for the cracking. However, several improvements must always be made in order to save more energy and create the best result for commercialization.
Design of brake failure control on motorcycle disc brakes through an integrated cooling system Khatami, Mokhammad; Muslim, Zulfa Adi; Kurniawan, Yuda Junaedi
Journal of Engineering and Applied Technology Vol. 4 No. 2 (2023): (August)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v4i2.65235

Abstract

The increasing number of traffic accidents is a challenge for driver safety. The biggest factor in traffic accidents in terms of vehicles, one of which is brake failure. The number of cases of failed brakes was 7,083 cases and increased in the following year by 32% or 9,333 cases. The main cause of brake failure is the temperature condition in the brake calipers which overheats, triggering the occurrence of brake vapour lock. So, there is an urgent need for innovative solutions that can overcome the failure of the brakes on motorcycles due to the lack of effectiveness of the cooling system in the callipers. This study aimed to analyze the effectiveness of E-BRACE (electronic brake cooling control system) in preventing brake failure and to describe the design and innovation of E-BRACE as a technology for controlling brake failure through an integrated cooling system. The research was experimentally carried out with functionality tests to describe the effectiveness of E-BRACE. The test revealed that E-BRACE was very effective in stabilizing the temperature in the 9th to 15th-minute range. The highest E-BRACE effectiveness in the 15th minute is 55 %.
FDM 3D printing application for making plate pattern on sand casting Royan, Muhammad; Soemowidagdo, Arianto Leman; Sasongko, Beni Tri; Pradana, Deny Aji
Journal of Engineering and Applied Technology Vol. 4 No. 2 (2023): (August)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v4i2.64658

Abstract

Pattern making in sand casting requires high-level skilled workers since accuracy is the most important concern in producing good quality products. Therefore, conventional pattern-making becomes a major obstacle in developing new products, especially for complicated products as it takes over 70% of the total time in production of the foundry process. This study offers an alternative method in pattern making utilizing 3D technology with the Fuse Deposition Material (FDM) method. It consisted of three steps: planning, production, and evaluation. An intake manifold is an example product that was designed by using Computer Aided Design (CAD) and then imported to a slicer application to obtain the G codes. After the design was printed by using filament of PLA+, it was assembled to create the plate pattern that then was used to produce the intake manifold through casting. The study result shows that the FDM method of the 3D printing technology is feasible for pattern making on sand casting. Deviation and shrinkage of the casting product were still within tolerance. The largest shrinkage is 0.453 mm (1.258%).
Techno-feasibility assessment on utilization of rice husk and wood scrap as energy sources of the rotary drier while drying BSF maggot Purwaka, Purwaka; Susastriawan, Anak Agung Putu; Saputra, Hadi; Rahayu, Suparni Setyowati; Hidayat, Taufiq; Sidharta, Bambang Wahyu; Mathur, Akanksha
Journal of Engineering and Applied Technology Vol. 5 No. 2 (2024): (August)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v5i2.75953

Abstract

Black Soldier Flies (BSF) maggot business got increasing attention nowadays, especially dried BSF maggot. The dried BSF maggot is very suitable for fish feed, thus dried maggot business has good prospectus not only in terms of financial sector but also in terms of waste management sector. Unfortunately, making dried maggot requires high cost during drying process, since additional cost for LPG is needed. It is important to replace LPG fuel by less expensive one, such as biomass fuel. Indonesia has huge potential of biomass energy sources which mainly come from agricultural, forestry, and industrial waste. The present work aims to investigate techno-feasibility of rice husk and waste scrap waste as feedstock of rotary drum drier. The experimental work is conducted by drying 10 kg fresh BSF maggot for 2 hours in the drier using blend feedstock of 6 kg rice husk- 6 kg wood scrap (RH-WS) and feedstock of 12 kg wood scrap (WS). The results depict that the waste of rice husk and wood scrap are technological feasible as energy sources for rotary drum dryer while drying BSF maggot. The performance of the drier in terms of drying rate, drying heat, specific fuel consumption, and drier's effectiveness is better when a blend of rice husk and wood scrap is used as a feedstock. The values of drying rate, drying heat, specific fuel consumption, and drier's effectiveness when using blend feedstock are 0.92 g/s, 20996.37 kJ, 27940.15 kJ/kg, and 0.67, respectively. It is recommended to use waste of rice husk and wood scarp in blending form to obtain optimum performance of the rotary drier while drying BSF maggot.
Building settlement measurement system and reporting on LabVIEW-based soil liquefaction simulator Pratama, Bagas Adha; Zahrah, Dian Fajria; Setiowati, Sulis
Journal of Engineering and Applied Technology Vol. 5 No. 2 (2024): (August)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v5i2.65486

Abstract

A one-axis shaking table soil liquefaction simulator is utilized to study soil behaviour and characteristics, enabling efforts to mitigate liquefaction-indicated soil behaviour. Traditionally, the process of measuring and documenting building settlement, which is a soil variable that indicates liquefaction, involves the use of a pen, paper, and measuring instrument. Therefore, build a measurement system consisting of LVDT displacement sensors and NI cRIO-9025 as the main components, along with LabVIEW software as a novel medium to acquire, process, display, and record measurement data to provide increased measurement accuracy equivalent to traditional instruments. The soil used as material in the test was represented by silica sand with a density percentage of 40-70%. By utilizing the measurement system uses a linear regression scaling method with a sampling time implemented during testing with 100 ms or 10 data/second and descriptive statistical analysis, the soil liquefaction simulator achieves precision with an average measurement error of ±0.89 mm and a reporting operational time efficiency rate of 95.80%. Thus, the accuracy rate of the simulator with the method used in the system is 96.31%.
Design of website-based Preventive Maintenance Checklist Smart System (PMCSS) to support the operation of ARFF vehicles at I Gusti Ngurah Rai Airport Bagus Arya Dwipa, I Gusti Ngurah; Abdullah, Anton; Martadinata, M. Indra; Komalasari, Yeti; Amalia, Direstu
Journal of Engineering and Applied Technology Vol. 5 No. 1 (2024): (March)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v5i1.67708

Abstract

This design aims to increase the preparedness of Airport Rescue and Fire Fighting (ARFF) vehicles in supporting operations at I Gusti Ngurah Rai Airport by creating a website-based preventive maintenance application. This research was based on initial observations on the effectiveness level of preventive maintenance systems for operational vehicles that still apply conventional systems so that they are prone to human error. The research and development method was used in this study, including stages namely potential issues, information gathering, product design, product validation, product repair, product trial, and product revision. This study shows that the validation carried out obtained an average percentage of 81.5% with a very decent category. Based on the research results and discussion, it can be concluded that the website-based PMCSS application is effective in supporting ARFF operational vehicles at I Gusti Ngurah Rai Airport.
Design analysis of the baseplate of a stack module using computer-aided engineering Iqbal, Muhammad; Puspitasari, Etik
Journal of Engineering and Applied Technology Vol. 5 No. 2 (2024): (August)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v5i2.76520

Abstract

A PWM rectifier is a power converter that functions to convert alternating current into direct current using pulse width modulation (PWM). The baseplate is an important part of the PWM rectifier box, which acts as a stack module holder and has an important role in maintaining the stack module and increasing the power conversion efficiency and reliability of the train traction system. This study aims to determine the effect of variations in material and plate thickness used on Von Mises stress, deformation, and safety factors as well as the mechanical properties of the designed baseplate. The research method used is finite element analysis (FEA) by doing 3D modelling using CAD software and a simulation process using computer-aided engineering (CAE) software with material and plate thickness variations. The results obtained the best baseplate based on the value of Von Mises stress and minimum deformation, as well as the maximum safety factor, namely the baseplate with SS400 material with a plate thickness of 5 mm, with a minimum Von Mises stress value of 76.374 MPa, a minimum deformation value of 0.13611 mm, and a maximum safety factor value of 3.1424. It indicates the effect of material and plate thickness on the value of Von Mises stress, deformation and the resulting safety factor, thus affecting the mechanical properties of a good and safe baseplate in maintaining the performance of the stack module.
Experimental study: coolant viscosity's impact on Inconel 600's surface roughness measured using a refractometer Pujo Leksonowati, Nur Fitria; Pamungkas, Nurman; Manurung, Meilani Mandalena; Batubara, Ninda Hardina; Widiastuti, Hanifah
Journal of Engineering and Applied Technology Vol. 5 No. 1 (2024): (March)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v5i1.71254

Abstract

This paper presents an experimental study on the impact of coolant viscosity on the surface roughness of Inconel 600 material processed using a lathe. This research employs sequential experimental methods, encompassing a coolant viscosity test, specimen machining with a lathe, and surface roughness test. The standard for the roughness grade number is defined by ISO 1302. The study effectively demonstrates the use of a refractometer as a reliable and practical alternative for determining coolant quality in % Brix units, which strongly correlates with coolant viscosity. The research findings reveal that an increase in coolant viscosity results in a smoother surface roughness of the workpiece, while a decrease leads to an increase in surface roughness. Specifically, the average viscosity of 8%, 10%, and 13% Brix coolant results in an average surface roughness of Ra 11.83 μm, Ra 10.09 μm, and Ra 7.23 μm, respectively. The average roughness grade number based on this study is N9 - N10. However, the study also identifies the need for further mathematical calculations to establish a link between coolant concentration, % Brix, and coolant viscosity. This opens up an intriguing avenue for future research and holds the potential to significantly enhance our understanding of the relationship between these variables.
Performance analysis of the fabricated animal feed mixer machine Ardian, Aan; Wikantara, Astana Aji; Aditya, Zaky Ahmad; Kusdiyarto, Prihatno
Journal of Engineering and Applied Technology Vol. 5 No. 2 (2024): (August)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v5i2.73308

Abstract

This research focused on the development of an animal feed mixer machine to improve mixing capacity. The research used an experimental model and involved need analysis, design, development, implementation, and evaluation. The goal was to determine the optimal rotational speed of a stirrer screw for different types of animal feeds as well as understand the stages of making the machine and its working principle. The process involved manufacturing the frame, shaft, transmission, screw fins, sheet metal process, and assembly. The results shows that the animal feed mixer machine with a stirring speed of 312.3 rotations/minute was able to produce 958.3 kg of feed in one hour. This stirring speed provides the best fuel consumption, which is 676.5 ml/hour. The mixer has a safe element on the reduction shaft, with 115.8 kg.mm of torque and 5.82 kW of power. Thus, this mixer is an efficient and productive solution for the animal feed industry.
Feasibility Assessment of Construction 4.0 Technology Investment: Drones, Building Information Modeling (BIM) and Virtual Reality (VR) Safira, Herdiana; Tanne, Yongki Alexander; Maarif, Muhamad Samsul
Journal of Engineering and Applied Technology Vol. 5 No. 1 (2024): (March)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v5i1.71123

Abstract

Construction 4.0 technology is an anticipation of the challenges of quality improvement in the construction industry. However, its implementation has not been simultaneous with an evaluation of the benefits and value of investment. For this reason, this research evaluates the benefits and investment feasibility of construction 4.0 technology on 36 projects of the Indonesian construction state-owned enterprise (SOE), PT. XYZ Persero Tbk. during 2020-2022 for Drones, Building Information Modeling (BIM) and Virtual Reality (VR) as individually and integrated. Based on evaluation data on the use of technology and financial data from technology investments obtained, this research quantitatively calculates the value of the benefits of increasing productivity and then calculates the financial evaluation using the Return on Investment (ROI), Net Present Value (NPV), Internal Rate of Return (IRR) and Benefit-Cost Ratio (BCR) methods and implies those results qualitatively. As a result, individually, BIM is the technology that contributes the most in terms of benefits, VR contributes well in terms of investment value, while drones still have development potential. Integration between technologies is still challenging where the use of technology simultaneously does not guarantee significant integration between the three technologies reviewed in this research. 

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