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INDONESIA
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 161 Documents
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Effect of Nacl Solution on Protection Rate of BJTP 40 Steel (SNI 07-2052-200219) With Sacrificial Anode Cathodic Protection Utilizing Zn Anode Syamsul Bahri Widodo; Nazaruddin Abdul Rahman; Zainal Arif; Joshua Tri Saputra
JURUTERA - Jurnal Umum Teknik Terapan Vol 10 No 01 (2023)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v10i01.8449

Abstract

Reinforced concrete is a crucial element in infrastructure. However, it is unfortunate that the issue of corrosion in reinforced concrete structures has a significant impact and requires detailed consideration. Since the 1980s, research on corrosion-related problems has been initiated, one of which involves the SACP (Sacrificial Anode Cathodic Protection) approach using Zn sacrificial anodes. The purpose of this method is to control the corrosion rate in reinforced concrete. Environmental factors, such as the composition of solutions, play a role in influencing the resulting corrosion rate. Therefore, research is conducted by applying different solutions, namely 4% and 5% NaCl solutions, as well as Freshwater. This aims to compare the effects of these solutions on the measured corrosion rate using Zn anodes. The test results over a 4-week period indicate that the 5% NaCl solution exhibits a very high corrosion rate, as evidenced by the corrosion potential value of -790.3 mV. Conversely, the freshwater solution demonstrates a lower corrosion rate, with a corrosion potential value of -225.6 mV and a corrosion risk of only around 10%. This research provides a deeper understanding of the impact of solutions on the corrosion rate in reinforced concrete and offers a more scientific and contemporary perspective in line with current developments.
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.
PENENTUAN WAKTU KAPASITAS PRODUKSI DENGAN MENGGUNAKAN METODE ROUGHT CUT CAPACITY PLANNING (RCCP) (Studi Kasus Pada Perusahaan Tegel UD. Elsa Langsa) Yusri Nadia; M. Thaib Hasan; Krisvan Leonardo Hutabarat; Yusnawati
JURUTERA - Jurnal Umum Teknik Terapan Vol 11 No 01 (2024)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v11i01.2181

Abstract

Keberhasilan dari pengendalian dan perencanaan manufaktur membutuhkan perencanaan kapasitas yang efektif agar dapat memenuhi permintaan konsumen sesuai jadwal produksi yang telah ditetapkan. Rough Cut Capacity Planning (RCCP) ialah suatu proses analisis dan evaluasi untuk verifikasi/ menjelaskan kapasitas pada setiap stasiun kerja dari fasilitas produksi yang tersedia di lantai pabrik agar sesuai atau dapat mendukung jadwal induk produksi yang akan disusun. Metode yang digunakan untuk menganalisa data dalam penulisan ini adalah pengukuran kerja dengan metode pengukuran waktu kerja, peramalan dan Rough Cut Capacity Planning ( RCCP ). Hasil perhitungan yang telah dilakukan belum memenuhi kebutuhan permintaan konsumen karena kapasitas yang dibutuhkan lebih besar dari kebutuhan kapasitas tersedia sehingga dengan metode Rought Cut Capacity Planning (RCCP) dapat melakukan usulan perancangan kapasitas dengan cara penambahan waktu kerja dan dengan cara penambahan tenaga kerja. Penambahan waktu kerja sebanyak 1 jam per hari dan penambahan tenaga kerja sebanyak 1 orang sehingga sudah memenuhi permintaan konsumen karena kebutuhan kapasitas yang tersedia lebih besar dari kebutuhan kapasitas dimana rata-rata kapasitas tersedia pada satu tahun kedepan yaitu 6260 jam dan rata-rata kapasitas dibutuhkan 4723,142 jam.
Development Of a Fiberglass Composite Pelton Turbine for Micro-Hydropower Applications Alfianda Gustiadinur; Nasruddin A. Abdullah; Nazaruddin Abdul Rahman; Fazri Amir
JURUTERA - Jurnal Umum Teknik Terapan Vol 11 No 01 (2024)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v11i01.7153

Abstract

The demand for electricity is continually increasing. Typically, electrical energy is generated using fossil fuels such as coal in thermal power plants. Generally, these power plants or other electricity generators supply power to densely populated areas such as large cities. Remote areas, however, often lack access to electricity due to their distance from urban centers. One solution to this issue is the development of micro-hydropower plants (MHPs). In MHPs, turbines are generally made of metal, which has high inertia and thus leads to lower efficiency. Therefore, this study replaces the turbine in an MHP with one made of fiberglass to assess the material's resistance to the water pressure in MHP operations. Based on the research conducted, the allowable stress for the fiberglass was determined to be 11.59801 MPa, with the water pressure applied to be 0.000985 MPa.
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%.
Performance Evaluation of a Pelton Turbine with Fiberglass Composite Blades Using Three Nozzles in Different Positions Nasruddin A. Abdullah; Syamsul Bahri Widodo; Suheri; Rita Syntia; Zainal Arif; Cut Inayah
JURUTERA - Jurnal Umum Teknik Terapan Vol 11 No 01 (2024)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v11i01.9174

Abstract

Renewable energy utilization has become a primary focus in addressing the negative impacts of fossil fuel usage for electricity needs. One proposed solution is using water flow energy through a Pelton turbine. However, traditional materials used in Pelton turbines, especially metals, have disadvantages such as high inertia and susceptibility to corrosion. In this study, we replaced the Pelton turbine's material with fiberglass composite, which offers lower inertia and better corrosion resistance. This study aims to evaluate the performance of the Pelton turbine using fiberglass composite material. Tests were conducted by connecting the turbine to a generator and installing three adjustable nozzles, divided into seven sections based on the number of nozzles opened. Voltage, current, and electric power were measured using a power meter. The results show that with a load consisting of LED light bulbs, the section with one nozzle open (Section 2) achieved the best power output of 1.11 watts, while the section with two nozzles open (Section 6) achieved the best power output of 1.66 watts. Without load, the highest voltage occurred in Section 2 with one nozzle open at 30.9 volts, while the highest power was recorded in Section 4 with two nozzles open at 31.26 volts
PENGERINGAN BELIMBING WULUH (AVERRHOA BILIMBI L) MENGGUNAKAN TIPE LORONG BERBASIS ARDUINO MEGA 2560 Syahputra Karo-karo, Riduan; Iskandar; Abdul Rachman, Nazaruddin
JURUTERA - Jurnal Umum Teknik Terapan Vol 11 No 01 (2024)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v11i01.9298

Abstract

Starfruit (Averrhoa Bilimbi L) is a starfruit vegetable that is often used by Indonesian people as an acid in kitchen spices. Starfruit (Averrhoa Bilimbi L) is often made into suntan acid so that it can be used for 1-1.5 years because it has undergone a drying process. The drying process for Starfruit (Averrhoa Bilimbi L) is still traditional, namely by drying it in direct sunlight. This drying is less efficient because it is influenced by several factors such as weather factors and the length of the drying process which can affect the quality and color of sunti acid. This research aims to find out how to design and design tools, as well as time and temperature in processing the tunnel type Starfruit (Averrhoa Bilimbi L) using a blower system with heat control based on Arduino Mega 2560. The research method used in this research is quantitative research. The research results show that the design and design in this research have been successfully designed, overall, this tool is shaped like a tube with several supporting components, namely LPG gas, blower, and drum holder. The time needed to reach a dry Belimbing Wuluh is done in 6 stages with an interval of 120 minutes, so the total is 12 hours. The temperatures that occur in both T1, T2, and T3 vary as seen from the test graph. Temperature testing in this test uses a MAX6675 sensor with a thermocouple connected to an Arduino Mega 2560. To measure weight, use a manual scale. It is recommended that the drying room be made denser so that it can produce good heat. The addition of a blower is very necessary so that the hot air can be distributed thoroughly. It is hoped that this starfruit dryer can be developed even better and can help the community in drying wealth starfruit.
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.
Proposed Improvements in Shrimp Business Productivity Irwan Efendi; Meri Andriani; Heri Irawan
JURUTERA - Jurnal Umum Teknik Terapan Vol 11 No 01 (2024)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v11i01.9319

Abstract

Makmur Jaya is a vaname shrimp farming business, located in Kebun Kelapa Village, Secanggang District, Stabat. The problem faced by SMEs. Makmur Jaya is that poor input utilization causes productivity to decline. The research objective is to identify productivity and productivity improvement strategies at SMEs. Makmur Jaya. The method used in this research is the American Productivity Center (APC) method. The results of the study, the largest increase in the productivity index in period 4 by 1% while the largest decrease in the productivity index in period 2 by -46.74%, the highest increase in the profitability index in period 3 by 1% while the highest decrease in profitability index in period 2 by -55.06%, and the largest price improvement index occurred in capital period 2 by 1.62, while the smallest price improvement index occurred in material period 2 by 0.79. The study concludes that the decline in productivity occurred in period 2 by 46.74%, so it is necessary to increase productivity. Strategy to increase productivity in SMEs. Makmur Jaya is minimizing the use of inputs to produce large outputs. Based on the results of the calculation, the input can be reduced by 36.49% (RP. 107,969,896) and the output can be increased by 56.53% (RP. 107,296,767) so that the total productivity increases by 0.94% from the initial total productivity.
Analysis of Flexural Stress in Prototype Carding Machine Spindle Gears Made of Aisi 1020 Steel Muhammad Safii; Khaqurokhim; Rouf Muhammad; Suheri Suheri; Agung Nugroho; Susanto; Muhammad Iqbal Farhan Putra Arya
JURUTERA - Jurnal Umum Teknik Terapan Vol 11 No 01 (2024)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v11i01.9548

Abstract

Stress in a mechanically loaded structure is a critical aspect that warrants thorough investigation. The impact of stress on a structure can lead to various consequences, including crack propagation and fracture. Gears play a crucial role in transmitting power and rotation between shafts, making an in-depth analysis of stress in gears essential for ensuring mechanical reliability. Previous research has predominantly focused on stress and loads in gears, utilizing mathematical and numerical methods to explore variations in parameters such as gear diameter and thickness in various vehicles and machines. However, there is a noticeable gap in the literature regarding the analysis of the effect of AISI 1020 steel material on spur gears, particularly in the context of a carding machine for silk processing. This study aims to fill this void by employing a mathematical approach to determine the flexural stress in prototype spindle gears used in a carding machine for silk processing. Through thorough analysis and mathematical calculations, the flexural stress in the prototype spindle gears of the carding machine for silk processing was determined to be 176.32 kg/mm². This research provides valuable insights into the mechanical behavior of gears under load, specifically in the context of the unique requirements of a carding machine for silk processing.

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