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JURUTERA (Jurnal Umum Teknik Terapan)
Published by Universitas Samudra
ISSN : 23565438     EISSN : 23565438     DOI : https://doi.org/10.55377/jurutera.v10i02.8268
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Engineering Mechanical Engineering
Jurnal Ilmiah Jurutera menerbitkan dalam berbagai topik dalam bidang rekayasa dan sains yang dapat dikategorikan kedalam tema-tema berikut: - Teknik Elektro dan Informatika - Teknik Geologi dan Pertambangan - Teknik Arsitektur dan Perencanaan Wilayah dan Kota - Teknik Mesin dan Industri - Teknik Sipil dan Lingkungan - Teknik Perkapalan, Sistem Perkapalan, dan Kelautan - Multidisiplin
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 5 Documents
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Search results for , issue "Vol 10 No 02 (2023)" : 5 Documents clear
Finite Element Method Analysis of Potential Shaft Breakage in Truck Wheel Drive Due to Initial Crack Fauzan; Sarah Niaci; Rahmad Afandi; Zaim Hikma Nasution
JURUTERA - Jurnal Umum Teknik Terapan Vol 10 No 02 (2023)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v10i02.6521

Abstract

The need for truck transportation in the city of Langsa is increasing. This is because the residents of Langsa use trucks as a means of transporting palm oil from plantations. Engine component failures are often experienced in every mechanical construction, and these failures are marked by the breaking of these engine components. Cracks become one of the potential sources of failure in the machine structure. There is a need to detect cracks in the shaft at an early stage to prevent damage. Therefore, it should be investigated using appropriate techniques at the early stage of crack formation. The purpose of this research is to find the potential source of shaft fracture relative to the initial crack location on the shaft. This research method is carried out by determining the same initial crack dimensions at two different locations. The initial crack locations are determined through a case study of frequent fractures in the fillet spline and fillet flange locations. The calculation results show that the permissible stress of the shaft is 80.7 MPa. The finite element method simulation results show that the maximum shear stress value on the shaft without an initial crack is 65.234 MPa, on the shaft with an initial crack in the fillet spline location is 69.654 MPa, and on the shaft with an initial crack in the fillet flange location is 78.79 MPa. The finite element method simulation results also show that the von Mises shear stress value on the shaft without an initial crack is 113.29 MPa, on the shaft with an initial crack in the fillet spline location is 120.66 MPa, and on the shaft with an initial crack in the fillet flange location is 137.23 MPa. The finite element method simulation results further show that the von Mises shear strain value on the shaft without an initial crack is 0.000567, on the shaft with an initial crack in the fillet spline location is 0.000630, and on the shaft with an initial crack in the fillet flange location is 0.000693. In conclusion, the potential source of failure experienced by the shaft between the two locations of frequent failure is the shaft with an initial crack in the fillet flange location.
Flexural Strength Analysis of Laminated Composites Using Clam Shell Powder and Bagasse Powder Ramadani Siregar; Zainal Arif; Muhammad Zulfri; Syamsul Bahri Widodo; Nazaruddin Abdul Rachman
JURUTERA - Jurnal Umum Teknik Terapan Vol 10 No 02 (2023)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v10i02.8268

Abstract

Composites are materials that have specific properties based on their constituent materials. The constituent materials consist of binders and reinforcements. Reinforcing materials come from synthetic fibers and natural fibers. Natural fibers can be waste that is wasted in the environment. These wastes include bagasse waste and clam shells. These wastes are made into fibers. Resin is mixed with fiber and blowing agent, then stirred until evenly distributed and poured into the mold, resulting in a composite material. This study aims to obtain the strength of composite materials due to three-point bending loading with the laminate fiber layer method. The manufacture of this test specimen uses bagasse powder and clamshell powder formed with a casting system. This material consists of 4 layers. The first and third layers are clamshell powder, and the second and third layers are bagasse powder. The fiber sizes of the specimens are 300mesh, 400mesh, and 500mesh. The fiber fraction ratio was 10% and 15%. The models were laminated and tested for three-point bending. The best results were found in the 500 mesh fiber size specimen, with a fraction ratio of 85% resin and 15% clam shell powder and bagasse. The maximum stress obtained was 63.46 MPa and strain 0.59 mm, with a bending force of 487.42 N.
Performance Evaluation of a Rice Drying System Utilizing Wick Heat Pipe as a Heat Exchanger Haikal Adlin; Nasruddin A. Abdullah; Nazaruddin Abdul Rahman
JURUTERA - Jurnal Umum Teknik Terapan Vol 10 No 02 (2023)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v10i02.8800

Abstract

Indonesia predominantly consists of a population engaged in rice farming as their primary source of livelihood. The rice farmers in Indonesia continue to employ traditional methods in the rice drying process, which poses a significant challenge as it substantially impacts the efficiency of rice processing. Consequently, to address this issue, a rice drying apparatus employing wick heat pipes as heat transfer devices has been developed. In the course of this research, the drying apparatus underwent testing at multiple points, with variations in voltage and airspeed. This was undertaken to ascertain the optimal voltage level at which the wick heat pipes, and the drying chamber would operate effectively. Voltage settings of 180V, 200V, and 220V were used, coupled with airspeeds of 1.5 m/s and 2 m/s. For the 180V setting and an airspeed of 2 m/s, a heat transfer rate (Q) of 1.0552 J/s was achieved, with an efficiency of 0.18%. Conversely, at an airspeed of 1.5 m/s, the heat transfer rate amounted to 1.1306 J/s, and the efficiency reached 0.19%. At 200V and an airspeed of 2 m/s, the heat transfer rate was 1.5075 J/s, and the efficiency was 0.21%, while at an airspeed of 1.5 m/s, the heat transfer rate was 1.1306 J/s, with an efficiency of 0.16%. At 220V and an airspeed of 2 m/s, the heat transfer rate was 1.8009 J/s, and the efficiency was 0.21%, while at an airspeed of 1.5 m/s, the heat transfer rate remained at 1.8009 J/s, and the efficiency also stood at 0.21%. In conclusion, it can be inferred that the wick heat pipes, and the drying chamber demonstrated optimal performance at the 220V voltage setting.
Analysis Using the American Productivity Center (APC) Method Case Study UD. Tempe Mawar Indah Muhammad Firdaus; Yana, Dewi; Andriani, Meri
JURUTERA - Jurnal Umum Teknik Terapan Vol 10 No 02 (2023)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v10i02.7317

Abstract

A company's competitive ability is not only measured by the superiority of its products, but also by the performance of its industrial system as a whole which is reflected in the profits earned, so that it can be used for the development of its business and workforce through industrial effectiveness, as well as continuous quality improvement. Increased productivity is expected to increase the development and progress of the company. UD. Tempe Mawar Indah does not have detailed knowledge about how the company develops and improves. So it is necessary to evaluate the productivity of the company. The method used in analyzing company productivity is the American Productivity Center (APC) and productivity evaluation uses the Productivity Evaluation Tree (PET) method. The results obtained from this study are the Total Productivity Level at UD. Tempe Mawar Indah Period I (Basic) was 127.58 then in Period II it decreased to 116.88 (-10.7), also caused by increased use of resources compared to production. In Period III it also decreased again to 114.35 (-2.53), also caused by increased use of resources compared to production. As a productivity evaluation that has been carried out using the PET method, namely increasing productivity in Period III with a scenario of reducing input by 4.18% or (Rp.27,601,350) so that productivity in Period III increases to 1.19%.
Advancing Energy-Efficient Drying: Integration of Phase Change Material (PCM) and Heat Pipe for Temperature Control in Dryers Irvan Ari Ramadhan; Nasruddin A. Abdullah; Nazaruddin Abdul Rachman; Fazri Amir
JURUTERA - Jurnal Umum Teknik Terapan Vol 10 No 02 (2023)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v10i02.9299

Abstract

The existing drying system struggles with efficiency and costs, contradicting its intended resource-saving purpose. Addressing these issues could generate increased interest in its utilization. To tackle this, precise control of the dryer's temperature and optimization of the heat source are essential for obtaining accurate and real-time data. Employing a quantitative approach, the researcher conducted a case study, performing tests subsequent to the completion of the dryer's assembly. These tests encompassed temperature measurements on both the core and periphery of the paraffin medium, as well as at the lower, middle, and upper sections of the heat pipes. Diverse voltage levels (150V, 180V, 200V, 220V) and two distinct airflow velocities (1 m/s and 2 m/s) were implemented. The study yielded a noteworthy finding: at 200 volts and a 2m/s airflow, a stable temperature of 94.8 ºC was maintained for an impressive duration of 1 hour and 5 minutes during testing. This promising outcome holds significant implications for enhancing the system's efficiency.

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