Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

5.915

P-Index

This Author published in this journals

All Journal Jurnal Teknologi Rekayasa Mesin Sinergi REKAYASA Jurnal Ilmiah Arena Tekstil Metal Indonesia JTERA (Jurnal Teknologi Rekayasa) Jurnal AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Multitek Indonesia : Jurnal Ilmiah Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Community Empowerment Mechanical Engineering for Society and Industry Automotive Experiences Jurnal Teknik Mesin Mechanical Xplore Teknologika SEMNASTERA (Seminar Nasional Teknologi dan Riset Terapan) AME (Aplikasi Mekanika dan Energi) : Jurnal Ilmiah Teknik Mesin Jurnal Polimesin

Amri Abdulah

Sekolah Tinggi Teknologi Wastukancana

Author-ID : 1708417

Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Transportation Other

Published : 49 Documents Claim Missing Document

Claim Missing Document

Articles

Title

1 2

PERANCANGAN MESIN CUTTING CHEESE BLOCK DENGAN CUTTING TOOLS KAPASITAS 20 KG Jatira; Amri Abdulah; Solihin
Jurnal Teknologika Vol 10 No 2 (2020): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Pemotongan keju blok yang dilakukan secara manual dengan menggunakan pisau membuat proses pemotongan menjadi lama sehingga operator kesulitan dalam mencapai target yang telah ditentukan. Mesin pemotong keju merupakan mesin dengan sistem pneumatik yaitu memanfaatkan tenaga angin sebagai penggerak untuk mendorong keju. Tujuan penelitian ini untuk memberikan gambaran rancangan mesin pemotong keju agar proses pemotongan keju terutama dalam bidang insutri menjadi lebih cepat. Pengambilan data pada penelitian ini yaitu meliputi observasi secara langsung, wawancara dan studi literatur. Hasil penelitian yang diperoleh adalah dari segi kualitas serta kuantitasnya. Mesin pemotong keju dengan sistem pneumatik ini dilihat dari segi kualitasnya hasil potongan keju menjadi seragam dibandingkan jika memotong secara manual. Sedangkan jika dilihat dari segi kuantitasnya mesin ini mampu menghasilkan 31,65 blok dibandingkan dengan pemotongan manual yang hanya 6,4 blok keju. Dari hasil tersebut dapat disimpulkan bahwa dengan mesin pemotong keju ini proses pemotongan menjadi lebih cepat dengan ukuran yang seragam.

ANALISIS SURFACE ROUGHNESS DAN MATERIAL REMOVAL RATE PADA PROSES SINKER-EDM MENGGUNAKAN ELEKTRODA GRAPHITE Muhamad Ardiansyah; Amri Abdulah; Sukarman
Jurnal Teknologika Vol 12 No 1 (2022): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Electrical discharge machining (EDM) is a non-conventional machining process by feeding the workpiece material by means of an electric spark (spark) through the gap between the electrode and the workpiece containing a dielectric fluid. The EDM process is influenced by the material being processed, electrode material, discharge current, spark on time, spark gap, dielectric fluid and so on. The combination of these parameters will produce different machining characteristics. The purpose of this study was to determine the value of the material removal rate and surface roughness of the workpiece (Surface Roughnes), using graphite electrodes and using the Taguchi method to determine the optimal parameters by varying the current parameters 10A, 13A. , 16A, spark on time 210µ, 340µ, 400µ and gap 40, 45, 50.

ANALISIS MATERIAL ROLLER CVT RACING UNTUK PENINGKATAN PERFORMA SEPEDA MOTOR HONDA BEAT 110CC Agung Maulana Rahmat; Dede Ardi Rajab; Nefli Yusuf; Amri Abdulah
Jurnal Teknologika Vol 12 No 2 (2022): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v12iNo 2.195

Abstrack In the industry, most do not use pure aluminum material, but utilize material absorption. An alloy that is often used in the foundry industry is Al-Si. The smelting process using a tool made of refractory stone as a heat insulator is able to increase the heat in the combustion chamber to 1,000 °C, the melted metal material must be at a melting point below 1,000 °C, such as aluminum, brass, lead and so on,. Roller is one of the components contained in the automatic transmission or CVT. Roller bar functions to press against the inner wall of the primary pulley during high rotation. This racing roller is a roller that is usually used to improve the performance of an automatic motorcycle. Rollers are heavy force balance bearings that are useful for pressing the inner walls of the primary pulley during high revolutions. Based on the results of the discussion in this study that the hardness value at three different points and has been carried out as much as 3 times for one test material, namely the Standard Roller, that data 1 average hardness price of 86 with an average penetration depth of 0.12 mm, for data 2 the average hardness price of 93 with an average penetration depth of 0.28 mm. Keywords : Material, Roller, and Hardness Tester.

Analisis Penurunan Tekanan Gas Sulfur Hexafluorida (Sf6) Pada Pemutus Tenaga 150 KV Siemens 3AQ1EG Prasetyo, Maulana Kukuh; Rohman; TB. Utami Adi Subekhi; Amri Abdulah; Agus Suprayitno
Jurnal Teknologika Vol 14 No 1 (2024): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v14i1.361

Abstract. The development of technology in the current era is very rapid and has an impact on increasing electrical energy which is a major need for large industries and households. One of the electrical energy delivery equipment in the transmission system is a PMT or High Connection Breaker. This PMT is a mechanical equipment equipped with sulfur hexafluoride (SF6) gas arc extinguishing media. The process of extinguishing the arc occurs due to contact due to work from the movement that causes the contact to cause an arc. This decrease in SF6 gas pressure greatly affects reliability when operating, because the arc extinguishing process is not perfect. This is determined by the age of the equipment and the number of operating breakers. The results showed that SF6 gas which is in accordance with the standard normal pressure of 6.4 bar with an ambient temperature of 34°C can minimize the occurrence of equipment damage because it is able to approach arc pressure with SF6 gas velocity of 58 cm/s.kA, with a contact gap of 3,61224. cm, while the PMT cannot be operated at a pressure of 5.2 bar with an ambient temperature of 34°C because the speed of SF6 gas is 82 cm/s.kA with a contact gap of 5.10696. It is concluded that the higher the pressure affects the speed and distance when extinguishing the arc. several factors that affect the decrease in SF6 gas pressure using the FMEA method based on the highest value of the Risk Priority Number (RPN) of 810. Keywords: fire arc, Breakdown, Voltage breaker, SF6 . gas pressure

UJI EKSPERIMENTAL DAN ANALISIS PERPINDAHAN PANAS PADA SERPENTINE CHANNEL UNTUK PENDINGIN PANEL SURYA MENGGUNAKAN FLUIDA NANO Ina, Ina afriani; Amri Abdulah; Dede ardi rajab; Dani, Muhamad; Nur Alam, Deden; Jaenudin
Jurnal Teknologika Vol 14 No 1 (2024): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v14i1.381

The potential of solar energy in Indonesia is quite large as a renewable energy source, usually called solar panels or photovoltaic (PV) technology as a device capable of converting solar radiation into electrical energy. When solar panels operate, only about 15% of solar radiation is converted into electrical energy, while the rest is converted into heat. The intensity of solar radiation and the temperature of the surrounding air affect the voltage and current produced by solar cells. This condition requires a device that can regulate the temperature state of the solar panel. This study was conducted to overcome the heat problem in solar panels through optimizing the thermal properties of the cooling fluid by adding nano-sized SEM/EDS-tested particles to the W/EG base fluid, which is commonly called nanofluids, then making serpentine channels as a heat exchanger was also carried out. The experimental test process was carried out with a flow rate variation of 1 to 3 LPM and the inlet temperature was kept at 35˚C. The results showed that the highest cooling fluid flow rate was the most optimum condition. The Reynolds number shows that the heat transfer coefficient increases by 1011.72 W/m◦K, 1321.72 W/m◦K, and 2070.39 W/m◦K, respectively. The Nusselt number tends to increase as the Reynolds number of the nanofluid increases. An increase in Nusselt number indicates an increase in heat transfer coefficient, while Reynolds number indicates laminar flow of the coolant. Similarly, the pressure drop increases with increasing flow rate.

ANALISIS KEGAGALAN MATERIAL KOPLING MESIN SLITTING DI PT. XYZ Jatira; Amri Abdulah; Muhamad Wisnu Purnama; Renaldi
Jurnal Teknologika Vol 10 No 2 (2020): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Kopling merupakan salah satu komponen mesin slitting yang berfungsi untuk memutuskan dan menghubungkan putaran daya mesin ke unit pemindah tenaga atau transmisi dengan tujuan mengubah kecepatan sesuai yang diinginkan. Adapun permasalahan yang diakibatkan kopling ialah kegagalan patah pada kopling. Untuk mengetahui permasalahan kegagalan patah pada kopling ada beberapa pengujian yang dilakukan, diantaranya dengan pengujian spektrometer, pengujian kekerasan dan pengujian metalografi. Pengujian dilakukan untuk mengetahui nilai kekerasan pada material kopling akibat pembebanan yang terjadi pada kopling. Pengujian dilakukan dengan membandingkan material kopling dengan material S45C menggunakan metode heat treatment dengan variasi media pendingin. Hasil dari penelitian yang dilakukan menunjukan bahwa terdapat perbedaan nilai kekerasan antara material kopling dengan material S45C, dimana hasil pengujian material kopling menghasilkan nilai kekerasan rata-rata 97 HRB sedangkan pada material S45C menghasilkan nilai kekerasan rata-rata 88,9 HRB, berdasarkan perubahan fasa ferrite, pearlite dan martensite hasil pengamatan metalografi.

Analisis Pemanfaatan Exhaust Fan Skala Rumah Terhadap Kinerja Turbin Angin Tipe Savonius Sumbu Vertikal Dharmawan, Quewys Alqorni Mada; Anwar, Choirul; Jatira, Jatira; Abdulah, Amri
Jurnal Teknologika Vol 15 No 1 (2025): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v15i1.436

The fossil fuel crisis in Indonesia, which contributes 85% of the national energy mix, has driven the need to utilize renewable energy sources, one of which is exhaust wind as industrial waste energy that has high speed (5-7 m/s) and good flow continuity. This study developed a vertical Savonius turbine with variations in exhaust-turbine distance (20, 30, 40 cm) and measured wind speed (5.3, 6, 6.4 m/s) to optimize the utilization of this energy. The results showed that the 20 cm configuration produced the best performance with a maximum power of 5.98 watts at a speed of 6.4 m/s and a Coefficient Performance (CP) of 0.16, which is 31% more efficient than a distance of 40 cm, proving the potential of exhaust wind as a renewable energy solution that is applicable in industry with a payback period of less than 3 years and the potential for reducing the load on the electricity network by up to 15%.

Heat Transfer Fluid Deposit in Retainer of Mechanical Seal Heryadi, Yadi; abdulah, Amri; Djafar Shieddieque, Apang; Ardi Rajab, Dede; Suripto, Heri; Setiawan, Dibyo; Solehudin, Agus
Jurnal Teknologika Vol 15 No 1 (2025): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v15i1.450

Mechanical seals in industrial pumps play a critical role in preventing heat transfer fluid leakage, especially under high-temperature operating conditions. A key component of this system is the seal head, which functions as a compression mechanism through a spring to maintain contact between sealing surfaces. However, the spring's performance can deteriorate due to the accumulation of deposits resulting from prolonged exposure to elevated temperatures, operating pressure, and fluid degradation—ultimately leading to seal failure and fluid leakage. This study aims to investigate the thermal stability of the reservoir fluid Therminol 66 (TM-66) and its impact on seal performance under long-term thermal exposure. The methodology includes direct observation of failed seals, thermogravimetric analysis (TGA) at temperatures of 75, 150, 250, and 350 °C for durations of 3, 6, and 12 hours, and chemical characterization using Fourier Transform Infrared Spectroscopy (FTIR). Additionally, thermal degradation behavior was assessed through activation energy estimation based on weight loss data obtained from TGA. FTIR results revealed that phenylcyclohexane is the dominant compound in TM-66, with a relative intensity of 0.803119. The thermogravimetric data demonstrated that higher temperatures and longer exposure times significantly accelerated fluid evaporation and mass loss. The activation energy analysis confirmed that thermal degradation is more likely to occur under extended high-temperature conditions. These findings highlight the importance of maintaining reservoir fluid temperature below 75°C to minimize deposit buildup in the seal chamber and ensure the long-term reliability and efficiency of the mechanical seal system.

Analisis Kinerja Kondensor Destilasi Minyak Atsiri Dengan Bahan Baku Daun Cengkeh Kapsitas 200kg Mardiansyah, Zulfahri; Agus Supraytno; TB.U. Adi Subekhi; Abdulah, Amri
Jurnal Teknologika Vol 15 No 2 (2025): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v15i2.530

Essential Oil or Essential Oils is a commodity that has great potential in Indonesia, such as the Cosmetics, Foodand Beverage Medicines industry. Therefore, the author analyzes the performance of the essential oil distillation condenserwith a capacity of 200kg with solutions such as flow. Distillation can be done by 3 methods, namely: Distillation with waterand steam / steam distillation system (water and steam distillation), Distillation with boiling system (water distillation /hydro-distillation), and distillation with direct steam (Direct steam distillation / Dry steam). The Reynolds number showsa value of 73.308. Then the type of fluid flow in the pipe is Turbulent Flow. LMTD provides the average rate of heattransferred accurately and quickly which the author has calculated to get a value of 127.61 K. The type of heat exchangeris so complex that it requires a correction factor (Fc) of 1.056 as a comparison of the actual heat transfer rate with themaximum heat transfer rate in the condensing zone of 1.051K.

Studi Komparatif Getaran Pada Sepeda Motor Saat Kondisi Standar Dan Hasil Konversi Ke Motor Listrik Heryadi, Yadi; Harmanda, Adi; Heryana, Ghany; Abdulah, Amri
Jurnal Teknologika Vol 15 No 2 (2025): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v15i2.535

A potential solution to mitigate exhaust emissions and air pollution is converting conventional motorcycles into electric ones. This study carried out the conversion of a gasoline-powered motorcycle to an electric motorcycle and analyzed changes in its dynamic characteristics through measurements of the center of gravity, suspension load distribution, and two-degree-of-freedom vibration response. The methodology involved determining the motorcycle’s center of gravity before and after conversion using the moment-of-force approach and conducting vibration analysis with a two-degree-of-freedom undamped model. Tests were performed in unloaded and loaded conditions with a 70 kg passenger to evaluate the effect of additional mass on suspension performance. Before conversion, the motorcycle’s center of gravity was located at x = 526 mm and y = 147 mm, shifting to x = 577 mm and y = 133 mm after conversion. With a passenger, the center of gravity moved from x = 754 mm and y = 704 mm to x = 762 mm and y = 687 mm after conversion. The total load decreased from 267 kg (74.8 kg front and 192.2 kg rear) to 239.6 kg (66.9 kg front and 172.7 kg rear). The vibration analysis revealed that the main natural frequency slightly increased from ω₁ = 19.507 rad/s (≈3.10 cps) to ω₁ = 19.654 rad/s (≈3.12 cps), while the secondary frequency remained stable at ω₂ = 4.52 rad/s (≈0.71 cps). The amplitude ratio changed marginally from (A/B) = 6.028 m/rad to 6.088 m/rad. Overall, the conversion does not induce significant additional vibration, indicating that the structural dynamics remain stable. However, fine-tuning of battery placement and suspension stiffness is recommended to optimize stability and ride comfort.

Co-Authors Abduh Al Afgani Afgani, Abduh Al Agung Maulana Rahmat Agus Solehudin Agus Suprayitno Agus Supraytno Agus Supriyanto Ahmad Fauzi Amin Rais Aminanda, Yulfian Amir Amir Amir Amir Amir Ananda Duta Suhendar Anjar Prasetyo Anwar Ilmar Ramadhan Apang Djafar Shieddique Ardi Rajab, Dede Aries Abbas Aris Budiyanto Bachtiar, Mochamad Faisal Choerul Anwar Choirul Anwar Choirul Anwar Choirul Anwar Dani, Muhamad Dede Ardi Rajab Dede Ardi Rajab Dede Ardi Rajab Dede Ardi Rajab Dede Ardi Rajab Dharmawan, Quewys Alqorni Mada Dodi Muhammad Dodi Mulyadi Dodi Mulyadi Fathan Mubina Dewadi Ghany Heryana Hananto, Agustia Harmanda, Adi Hasanudin Hasanudin Heryadi, Yadi Hilman Nugraha Husna, Agus Iman Nurshahid Ina, Ina afriani Irawan, Adhi Chandra Jaenudin Jatira Jatira Jatira Jatira Jatira Jatira Jatira Jatira Jatira Jatira Jefri Jafarudin Karyadi Karyadi Karyadi Khoirudin Khoirudin Khoirudin Khoirudin Khoirudin Khoirudin Khoirudin Khoirudin Khoirudin Khoirudin Khoirudin Khoirudin Khoirudin, Khoirudin Kil, Sohn Chang Kurnia, Tata Kusnadi, Akhmad Mardiansyah, Zulfahri Moch Iqbal Zaelani Mutahar Mohamad Rizkiyanto Mudjianto Ramadhan Cahya Muhamad Ardiansyah Muhamad Taufik Ulhakim Muhamad Taufik Ulhakim Muhamad Wisnu Purnama Muhamad Wisnu Purnama Muhammad Ali Akbar Muhammad Ali Akbar, Muhammad Ali Murtalim Murtalim Murtalim Muyladi, Dodi Nana Rahdiana Nana Rahdiana Naufal, Muhammad Fairuz Nazar Fazrin Nefli Yusuf Nizar Fernanta, Yosa Noviani, Vini Nur Alam, Deden Prasetyo, Maulana Kukuh Putra, Ean Deka Rag, Yoon Jung Rahdiana, Nana Rahmanto, R. Hengki Raja Mualtio Panggabean Rajab, Dede Ardi Renaldi Renaldi Renata Lintang Azizah Revi Kusnadi Ricko Valderama Riswandi, Muhammad Andi Rohman Rohman Rohman Rohman Rohman Rohman Rohman Roy Waluyo Saiful Anwar Saputra Sigalingging, Wanri Satria Prayoga setiawan, Dibyo Setiawan, Yuda Shieddieque, Apang Djafar Shieddique, Apang Djafar Shieddique, Apang Djafar Siswanto Sofyan, Muhammad Faizal Sohn Chang Kil Solihin Sri Suhartini Stefanus Bambang Jumawan Sukarman Sukarman Sukarman Sukarman - Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Suriaman, Irwan Suripto, Heri Tarya Taufik Ulhakim, Muhamad TB. Utami Adi Subekhi TB.U. Adi Subekhi Thiyana Thiyana Tomas Irfani Wawan Yoon Jung Rag Yulfian Aminanda Zaidar, Chilfi

Title Search

Found 12 Documents Search Journal : Teknologika

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 12 Documents
Search
Journal : Teknologika