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All Journal Autotech: Jurnal Pendidikan Teknik Otomotif Universitas Muhammadiyah Purworejo Jurnal E-Komtek JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Journal of Mechanical Engineering Automotive Experiences JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Jurnal Inovatif : Inovasi Teknologi Informasi dan Informatika Aspirasi : Publikasi Hasil Pengabdian dan Kegiatan Masyarakat Journal of Students of Automotive, Electronic and Computer
Hamid Nasrullah
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Analysis of Differences in Coper, Platinum and Iridium Spark Plugs on Fuel Consumption Bahtiar Wilantara; Ismail Kholid; Hamid Nasrullah; Ulfa Nur Fitri Khoiriyah
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 8 No 1 (2024)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v8i1.1778

Abstract

The research aims to determine the effect of different spark plug variations on fuel consumption. The method used is a descriptive method. The tools and materials used are: copper spark plugs, platinum spark plugs, iridium spark plugs, 5 liter measuring cup, and pertalite. Fuel consumption analysis compared copper, platinum and iridium spark plugs with rpm 700, 1000, 1500, and 2000. Test results: 1) Fuel consumption for copper spark plugs with rpm 700, 1000, 1500, and 2000, namely 40ml, 10ml, 15ml and 10ml. 2) Fuel consumption for platinum spark plugs with rpm 700, 1000, 1500 and 2000, namely 20ml, 5ml, 25ml and 20ml. 3) Fuel consumption for iridium spark plugs with rpm 700, 1000, 1500 and 2000 is 50ml, 10ml, 10ml and 10ml. So platinum spark plugs are more fuel efficient than copper and iridium spark plugs.
Analisis Daya dan Emisi Gas Buang Pada Mobil Daihatsu Xenia Tipe Xi Tahun 2011 Wilantara, Bahtiar; Nasrullah, Hamid; Suwarno, Atip
Journal of Mechanical Engineering Vol 7, No 2 (2023): Journal of Mechanical Engineering
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jom.v7i2.8078

Abstract

Tujuan penelitian adalah: 1) Analisa daya dan torsi pada Daihatsu Xenia tipe xi tahun 2011 dengan variasi celah busi. 2) Analisa emisi gas buang pada daihatsu xenia tipe xi tahun 2011. Metode penelitian yang digunakan adalah metode deskriptif. Alat dan bahan yang digunakan yaitu: 1) mobil daihatsu xenia tipe xi tahun 2011, 2) Dymomax, dan 3) Gaz analyzer HG-520. Hasil penelitian: 1) Pengujian dengan celah busi 0,4 menghasilkan Power Mesin (Max) 94,79 Hp @ 6543 RPM dan Torsi Mesin (Max) 119,04 Nm @ 5189 RPM. 2) Pengujian dengan celah busi 0,8 menghasilkan Power Mesin (Max) 95,02 Hp @ 6446 RPM dan Torsi Mesin (Max) 120,67 Nm @ 4700 RPM. 3). Pengujian dengan celah busi 1,2 menghasilkan Power Mesin (Max) 94,98 Hp @ 6449 RPM dan Torsi Mesin (Max) 123,72 Nm @ 4619 RPM. 4) Hasil analisa gas buang pada rpm 800 yaitu: 1) Celah busi 0,4 dan yaitu: CO 1,94%, HC 4234 ppm, CO2 8,8%, dan O2 0,00%. 2) Celah busi 0,8 dan yaitu: CO 0,39%, HC 182 ppm, CO2 13,7%, dan O2 0,00%. 3) Celah busi 1,2 dan yaitu: CO 0,45%, HC 154 ppm, CO2 14,6%, dan O2 0,00%. 
Experimental Study on the Conversion of Fuel Injection Motorcycles into Electric Vehicles Through Dynotest Performance Testing Ari Aryadi; Reza Febriano Armas; Hamid Nasrullah; Anissa Shofia Zahra
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 8 No 2 (2024)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v8i2.2155

Abstract

This study aims to test the results of converting a gasoline-fueled motorcycle with an injection system into an electric motorcycle in terms of horsepower and torque. The data from the unit conversion testing in this study used an experimental method with data analysis that compares the results of dyno tests on a gasoline-fueled motorcycle unit using variations of fuel octane values, with dyno test data from the unit after being converted into an electric vehicle. The testing equipment and materials used in the study were: Sportdyno 4.0, a 110 CC Injection Matic Motorcycle unit, and Pertamax Fuel. The results of this study show that the highest power and torque on the gasoline-powered motorcycle were 6.2 Horsepower (HP) at 6500 to 6600 rpm, and the highest torque was 6.8 N.m at 6400 rpm for the unit before conversion. After the conversion, the highest power achieved was 5.4 HP at an average of 2250 to 2500 rpm, and the highest torque was 28.48 N.m at 1100 rpm for the converted vehicle unit.Thus, it can be concluded from the average data analysis of the power and torque tests that the result of the electric vehicle conversion is 5.4 HP and 28.48 N.m.
Microcontroller-Based Car Automatic Braking System Nasrullah, Hamid; Kasman, Albert
Jurnal Inovatif : Inovasi Teknologi Informasi dan Informatika Vol. 6 No. 2 (2023)
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Traffic accidents are one of the largest causes of death in the world, with Indonesia being one of the countries that records a high death rate due to accidents. One of the main factors causing accidents is the driver's negligence in controlling the vehicle. In an effort to reduce accidents, automatic braking technology is an effective solution to prevent accidents due to braking system failure or the driver's inability to brake properly. The research aims to design and test an automatic braking system using an Arduino-based microcontroller and ultrasonic sensors to detect the distance of the obstacle in front of the vehicle. The system is designed to stop the vehicle automatically before it hits an obstacle, with testing conducted using the system's delay settings to optimise stopping distance. The test results showed that at a delay setting of 150 ms, the vehicle stopped at an average distance of 18.56 cm from the target of 20 cm, while at a delay setting of 300 ms, the vehicle stopped at an average distance of 25.44 cm from the target of 30 cm. This system shows a fairly high success rate in improving vehicle safety and reducing the risk of accidents.
Rancang Bangun Sistem Kerja Master Silinder Boster Rem Honda Berpaduan Dengan Rem Cakram BMW Langgeng Rifa'i Ansori; Bahtiar Wilantara; Hamid Nasrullah
JASATEC : Journal Students Of Automotive, Electronic and Computer Vol 1 No 1 (2021)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/jasatec.v1i1.604

Abstract

The purpose of this study was to improve the quality of learning through the design of learning media for the Honda brake booster master cylinder working system combined with BMW disc brakes at the Dharma Patria Polytechnic Kebumen. The research method used is descriptive and documentation method. This research was conducted at the automotive lab of the Dharma Patria Polytechnic. The last test was carried out by students of the automotive mechanical engineering study program at the Dharma Patria Polytechnic. The results of the study show: 1) The learning media of the brake system works according to its function when the brake pedal is pressed 2) The assessment of the results of the questionnaire for learning media has a very effective comparison of 75%; quite effective 25%; less effective 60%; 3) the learning media for the braking system received a score from 2 media experts and was categorized as very suitable for use at the Dharma Patria Polytechnic.
Media Pembelajaran Interaktif Berbasis Video Dalam Penggunaan Scan Tool Tipe Launch Thinkdiag Easydiag 4.0 Amril, Febri Caesar; Tri Tunggal Wicaksono; Heru Budi Setiaji; Hamid Nasrullah
JASATEC : Journal Students Of Automotive, Electronic and Computer Vol 1 No 1 (2021)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/jasatec.v1i1.654

Abstract

This study aims to make it easier for students to understand the use of scan tools, especially the Thinkdiag Easydiag 4.0 launch type scan tool. In order to improve the quality of learning in the Automotive Mechanical Engineering department, more interactive learning media are need-ed. In this final project, the method used is a quantitative method. As for the source of the data obtained based on the dissemination of information in the form of a questionnaire addressed to students who have used interactive media during learning. Based on the testing of this final pro-ject, it resulted in a score of 56.7% of the total student respondents. So that students can easily understand the material for using the Thinkdiag Easydiag 4.0 launch type scan tool thanks to interactive learning media.
Kran Air Minum Galon Otomatis Berbasis Sensor Inframerah Erman Al Hakim; Asrori, Guntur Firdous Asrory; Asni Tafrikhatin; Hamid Nasrullah; Jati Sumarah
JASATEC : Journal Students Of Automotive, Electronic and Computer Vol 3 No 1 (2023)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/jasatec.v3i1.1335

Abstract

Usually people drink clean water from gallon dispensers to meet their daily needs. Furthermore, automatic drinking water dispensers are designed to facilitate the operation of automatic drinking water faucets by automatically filling drinking water without the need to press the gallon suction button. Based on these problems, the authors automatically produce drinking water faucets based on infrared sensors using the R&D (Research & Development) method, in particular by conducting research and developing the currently available tools. One gallon automatic drinking water faucet uses infrared sensor, electric motor or water pump, relay, faucet PCB, ribbon cable and female hook connector. The infrared sensor detects the glass marked with the LED signal light and the power LED turns green, then receives the signal sent to the switch relay to automate the operation of the water pump/electric motor to dispense gallons of water.
Pengaruh Tekanan Pembukaan Nozzle Injektor dan Cetane Number terhadap Konsumsi Bahan Bakar pada Motor Diesel Silinder Tunggal pada Variasi Putaran Mesin Muhamad Amiruddin; Hamid Nasrullah
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 9 No 1 (2025)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v9i1.2500

Abstract

The ability of diesel injectors to spray fuel greatly affects the homogeneity of the mixture and its penetration power in the combustion chamber. The research method used is an experiment with data presented descriptively. The objectives of this study are to determine the effect of nozzle opening pressure on fuel consumption, to identify the nozzle opening pressure at which fuel consumption is lowest, and to determine the effect of cetane number on fuel consumption in diesel engines. The results of this study indicate that the nozzle opening pressure of the injector in a diesel engine significantly affects fuel consumption, regardless of whether the engine is operating at low, medium, or high RPM. The lowest fuel consumption in a diesel engine occurs at a nozzle opening pressure of 10 MPa. The cetane number of the fuel does not significantly affect fuel consumption in a diesel engine, specifically a single-cylinder indirect injection diesel engine. Keywords: Injector Pressure, Fuel Consumption, Diesel.
Analisa Cacat Pengelasan dan Kebocoran pada Knalpot Mobil di PT. X Kusuma, Firman Fadillah; Hamid Nasrullah
JASATEC : Journal Students Of Automotive, Electronic and Computer Vol 5 No 1 (2025)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/jasatec.v5i1.2558

Abstract

Penelitian ini bertujuan untuk menganalisis cacat pengelasan dan kebocoran pada knalpot mobil di PT.X. Metode yang digunakan adalah analisis visual dan pengujian non-destruktif untuk mendeteksi cacat pengelasan dan kebocoran pada knalpot mobil. Hasil penelitian menunjukkan bahwa cacat pengelasan dan kebocoran pada knalpot mobil dapat disebabkan oleh beberapa faktor, seperti teknik pengelasan yang tidak tepat, kualitas bahan yang buruk, dan desain knalpot yang tidak optimal. Penelitian ini juga menunjukkan bahwa cacat pengelasan dan kebocoran pada knalpot mobil dapat berdampak pada kinerja mesin dan keselamatan kendaraan. Hasil penelitian ini dapat digunakan sebagai acuan untuk meningkatkan kualitas knalpot mobil di PT.X dan mengurangi risiko kecelakaan yang disebabkan oleh cacat pengelasan dan kebocoran pada knalpot mobil.
Teknik Pengelasan GMAW (Gas Metal Arc Welding) pada Chasis Bus di PT. X Saputro, Arif Eko; Situmorang, Harry Gregorius; Nasrullah, Hamid; Amiruddin, Muhamad
JASATEC : Journal Students Of Automotive, Electronic and Computer Vol 5 No 1 (2025)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/jasatec.v5i1.2557

Abstract

Penelitian ini mengkaji penerapan metode pengelasan Gas Metal Arc Welding (GMAW) dalam proses penyambungan struktur chasis bus di industri otomotif, khususnya pada PT. X. Studi ini menitikberatkan pada evaluasi parameter teknis, teknik ayunan elektroda (weaving), dan proses persiapan material untuk menghasilkan kualitas las yang optimal. Metode penelitian menggunakan pendekatan deskriptif kualitatif dengan observasi langsung pada tahap persiapan permukaan, penjajaran logam, pelaksanaan pengelasan, dan inspeksi hasil las. Hasil penelitian menunjukkan bahwa pembersihan permukaan dan penjajaran menggunakan jig dan fixture sangat penting untuk menghindari cacat las seperti porositas dan distorsi sambungan. Pengaturan parameter mesin las seperti arus, tegangan, kecepatan pengumpanan kawat, serta pemilihan jenis gas pelindung (campuran Argon dan CO₂) secara signifikan memengaruhi stabilitas busur, bentuk bead, dan kedalaman penetrasi. Teknik ayunan elektroda yang disesuaikan dengan posisi pengelasan—termasuk pola zig-zag, spiral, segitiga, dan Straight Stringer—berperan besar dalam mengoptimalkan distribusi panas dan mencegah cacat seperti undercut dan incomplete fusion. Posisi pengelasan juga menentukan penyesuaian parameter untuk menjaga kualitas sambungan.
Co-Authors Agus Haris Abadi Ahmad Nurkholis Amiruddin, Muhamad Amril, Febri Caesar Anissa Shofia Zahra Ari Aryadi Ari Waluyo Asni Tafrikhatin Asrori, Guntur Firdous Asrory Atip Suwarno Azani, Magribfa Bahtiar Wilantara Bahtiar Wilantara Bahtiar Bahtiar Wilantara, Bahtiar Bekti Wulandari Budi Utomo, Sulitia Aji Tri Dwi Jatmoko Dwi Sudarno Putra Endang Shyta Triana Erman Al Hakim Firman Handoko Hajriyanto, Ilham Heru Budi Setiaji ILHAMDAN PRIMA, DHOVAN Ismail Kholid Jati Sumarah Kasman, Albert Kaswandi, Deri Kholid, Ismail Kusuma, Firman Fadillah Langgeng Rifa'i Ansori Milana Milana Muhamad Abdul Rois Muhamad Amiruddin Muhammad Rizky Fadilah Parikhin Piyan Prasetiawan Prastaji, Barlin Priono, Agus Purwanto, Wawan R Chandra Ragil Saputra Razaqri, Razaqri Reza Febriano Armas Saputro, Arif Eko Situmorang, Harry Gregorius Sotya Partiwi Ediwijoyo Suwarno, Atip Syamsul Huda Tombak Rizky Wijaya Tri Tunggal Wicaksono Ulfa Nur Fitri Khoiriyah Widiyatmoko, Widiyatmoko Yuliyanto, Wakhid