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All Journal Dinamisia: Jurnal Pengabdian Kepada Masyarakat JMM (Jurnal Masyarakat Mandiri) Jurnal Surya Masyarakat Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Infotekmesin Jurnal Surya Masyarakat Eksergi: Jurnal Teknik Energi IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) AMMA : Jurnal Pengabdian Masyarakat Power Elektronik : Jurnal Orang Elektro Nozzle : Journal Mechanical Engineering
Fatkhurrozak, Faqih
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Komparasi Efek Gasoline-Butanol dan Gasoline-Ethanol Terhadap Exhaust Gas Temperature dan Emissions Mesin EFI Sanjaya, Firman Lukman; Fatkhurrozak, Faqih; Syarifudin, Syarifudin; Usaman , M. Khumaidi; Wibowo, Agus
Infotekmesin Vol 15 No 2 (2024): Infotekmesin, Juli 2024
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v15i2.2335

Abstract

The use of gasoline in vehicles produces CO, HC, and NOx emissions which are dangerous for the environment. Using butanol and ethanol as additional gasoline can reduce pollutant emissions. This is because alcohol has a high oxygen content and helps combustion more completely. This research compares the Exhaust Gas Temperature and Emissions results of EFI engines using gasoline-butanol and gasoline-ethanol. The EFI engine used has a capacity of 150CC. The alcohol used was butanol and ethanol with a percentage of 5%, 10%, and 15% in each test. The test results showed that the highest EGT reduction occurred in the E15 mixture at 23.98% and B15% at 8.65. Meanwhile, CO emissions experienced the highest reduction in E10 by 53.6% and B15 by 44.6%. HC emissions also experienced the highest reduction in E15 by 70.5% and B15 by 66.7% compared to gasoline. However, CO2 emissions increased to 17.07% in the E15 mixture and 11.46% in B15. This proves that the addition of ethanol produces more complete combustion than the addition of butanol.
Pengaruh Penambahan Methanol Terhadap Performa Mesin Injeksi 150 CC Berbahan Bakar Pertamax fatkhurrozak, faqih; Lukman Sanjaya, Firman; Syarifudin, Syarifudin; Nur Akhmadi, Amin; Budhi Hendrawan, Andre
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2395

Abstract

The use of fossil fuels causes air pollution in Indonesia. Biofuel is one of the alternatives often used, one of which is methanol. Methanol has efficient characteristics and low emissions, increases engine performance and thermal efficiency, and reduces fuel consumption. This study aims to observe the concentration of pertamax - methanol addition of 5%, 10%, and 15% on performance, BSFC, and BTE. The percentage of pertamax and methanol fuel mixing is 5%, 10%, and 15%, and the speed used is 1000, 2000, and 3000 rpm. The measurements taken are power, BSFC, and BTE using a dynotest and displayed on a screen. Adding 5%, 10%, and 15% methanol to pertamax increases engine performance. The addition of Pertamax-methanol PM15 increases power by 25% at a speed of 1000 rpm, reduces BSFC by 40% on PM15 at a speed of 2000 rpm, and increases thermal efficiency on PM5 by 73% at a speed of 2000 rpm
Korelasi Nilai Oktan dan Kandungan Oksigen Biofuel Mangrove dengan Brake Torque dan Emisi NOx Mesin Bensin 150cc Syarifudin; Khumaidi Usman, Muhamad; Fatkhurrozak, Faqih; Lukman Sanjaya, Firman
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2565

Abstract

Alternative fuels are a priority to reduce the problem of fuel stock shortages. Bioethanol has potential because of its octane number specifications, oxygen content, and simple production techniques. Mangrove bioethanol is produced from mangrove fruit, which is non-edible and abundant. This study aims to observe the correlation of Mangrove Biofuel specifications (mixture of gasoline and 5% Mangrove Bioethanol) to Brake Torque and NOx Emissions produced by gasoline engines. Experimental methods are applied, from Mangrove Bioethanol production, octane value, oxygen content testing, and Mangrove Biofuel production to performance and emission testing. The results of the study showed that the correlation of the 101 octane number specifications and 30.31% oxygen content of Mangrove Biofuel increased the highest Brake Torque, reaching 5.45%, and increased the highest NOx emissions up to 6.54% at engine speeds of 5000 rpm.
Uji Performa Engine Fuel Injection Berbahan Bakar Gasoline-Butanol dan Gasoline-Ethanol Sanjaya, Firman Lukman; Fatkhurrozak, Faqih; Syarifudin, Syarifudin; Usman , M. Khumaidi; Budhi Hendrawan, Andre
Infotekmesin Vol 16 No 2 (2025): Infotekmesin: Juli 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i2.2814

Abstract

The energy crisis is largely attributed to the extensive use of fossil fuels. Butanol and ethanol can be used as an alternative energy source because their characteristics are superior to those of gasoline, such as RON and oxygen content. This study aims to determine the effect of gasoline-butanol and gasoline-ethanol mixtures on engine performance so that they can be an option to replace fossil fuels. The percentage of alcohol (butanol and ethanol) in gasoline is 5%, 10%, and 15% with variations in engine speed of 1000, 2000, and 3000 rpm. This study uses a dynamometer as a tool to measure engine performance. Test results show that E15 can increase engine torque and power by up to 26%, while B15 increases by 19%. In addition, ethanol can reduce BSFC better than butanol. The BSFC value decreased by 17% in E15, while B15 decreased by 15% compared to pure gasoline. This is because ethanol's RON and oxygen content are higher, so torque and power increase while BSFC decreases. These results prove that gasoline-ethanol is better at improving engine performance than gasoline-butanol.
PENGARUH WAKTU PENCELUPAN DAN TEGANGAN LISTRIK ELECTROPLATING TERHADAP KETEBALAN DAN KEKERASAN BAJA ST 41 fatkhurrozak, faqih; Jaya, Firman Lukman; -, Syarifudin; Aryanto, Nur Aidi; Satrio, Ryan Ade
Nozzle : Journal Mechanical Engineering Vol 11, No 2 (2022): Nozzle : Journal Mechanical Engineering
Publisher : Politeknik Harapan Bersama Tegal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/nozzle.v11i2.5815

Abstract

Dunia industri pelapisan logam mengalami peningkatan yang sangat cepat, mulai dari pelapisan bahan, jenis pelapisan hingga hasil dari pelapisan tersebut. Untuk menanggulangi bahaya kerusakan pada logam salah satunya korosi diperlukan cara untuk melindunginya yaitu dengan menggunakan pelapisan logam salah satunya electroplating. Baja ST41 adalah salah satu dari baja karbon rendah. Baja ini termasuk dalam golongan baja karbon rendah karena dalam komposisinya mengandung karbon sebesar 0,08%-0,20%. Prosedur penelitian yang akan dilakukan dalam penelitian ini yaitu dengan cara memotong benda kerja baja ST 41  yang berdiameter 40 mm dengan panjang 20 mm sampai jumlah total 14 spesimen dilakukan electroplating menggunakan variasi 5 V dan 10 V serta mengggunakan variasi waktu 15, 30 dan 45 menit. Hasil  electroplating pada tegangan 5 volt dan 10 volt memperlihatkan bahwa ketebalan terendah berada pada waktu 15 menit sebesar  tegangan 5 Volt sebesar 2,316 µm dan ketebalan tertinggi pada waktu 45 menit tegangan 10 volt  dengan tingkat ketebalan 7,93 µm. Hasil kekerasan pada baja ST 41 tegangan 5 dan 10 volt memperlihatkan bahwa tingkat kekerasan  terendah pada variasi waktu 30 menit tegangan 5 Volt sebesar 147 HB dan nilai kekerasan tertinggi pada variasi waktu 45 menit tegangan 10 volt sebesar 170 HB
Workshop Measuring Training to improve the Basic Engineering Competence of LPK. Bintang Manufaktur Tegal Indonesia students: Diklat Measuring untuk meningkatkan Kompetensi Basic Engineering Siswa LPK. Bintang Manufaktur Tegal Indonesia Syarifudin, Syarifudin; Fatkhurrozak, Faqih; Sanjaya, Firman Lukman; Hendrawan, Andre Budhi; Zidni, Hepatika; Yohana, Eflita; Saptaryani, Titiek Deasy
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 9 No. 3 (2025): Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v9i3.14257

Abstract

Vocational High School (SMK) graduates are the biggest contributor to the unemployment rate. The Tegal Indonesia Bintang Manufaktur Job Training Institute helps increase the knowledge and skills of participants who incidentally are class XII SMK. Class XII who graduate in 2023 will certainly have low knowledge and competence because of the learning method used online (Covid-19 pandemic policy). The community service program (PKM) aims to strengthen basic competence, especially measuring. The method used is Training which is held for three days (20-22 March 2023). The results of PKM presented increase in measuring competency of 95.38% from 32 participants. Through the free test conducted at the beginning and the Post test at the end of the activity, measuring competence has been optimal as reflected in the practical implementation of Quality control
WORKSHOP PENINGKATAN PENGETAHUAN MOTOR BAKAR PADA SISWA SMK Fatkhurrozak, Faqih; Sanjaya, Firman Lukman; Syarifudin, Syarifudin; Alfaqih, Adam; Wibowo, Agus
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 4 (2025): Agustus
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i4.33478

Abstract

Abstrak: Motor Bakar merupakan salah satu komponen utama dunia otomotif yang memiliki peran vital dalam sistem penggerak kendaraan bermotor, baik menggunakan kendaraan bensin maupun diesel. Pemahaman mengenai motor bakar menjadi dasar penting bagi siswa SMK agar mengembangkan kompetensi teori dan juga teknis yang sesuai dengan kebutuhan industri otomotif yang terus berkembang. PKM ini dilaksanakan oleh tim PKM D3 Teknik Mesin bertujuan untuk meningkatkan pemahaman secara teori dan juga praktik. Materi yang disampaikan pada PKM ini yaitu pengertian, klasifikasi, komponen utama, serta proses kerja motor bakar 4 langkah, dan juga demonstrasi menggunakan piston dan simulator injeksi. PKM ini menggunakan pendekatan secara post test, ceramah, diskusi, praktikum, post test. Hasil pelatihan menunjukkan peningkatan yang signifikan pada 20 siswa juruan teknik bisnis dan sepeda motor dengan rerata sebanyak 47% setelah dilakukan post test dan kepuasan siswa pada pelatihan ini rerata 3. Kegiatan PKM diharapkan menjadi bekal penting bagi siswa nantinya ketika didunia kerja.Abstract: The Combustion Engine is one of the main components of the automotive world that plays a vital role in the propulsion system of motorized vehicles, whether using gasoline or diesel vehicles. Understanding combustion engines is an important foundation for vocational high school students to develop theoretical and technical competencies that are in accordance with the needs of the ever-growing automotive industry. This PKM is implemented by the PKM D3 Mechanical Engineering team aims to improve understanding in theory and practice. The material presented in this PKM is the definition, classification, main components, and working process of a 4-stroke combustion engine, as well as demonstrations using pistons and injection simulators. This PKM uses a post-test, lecture, discussion, practicum, and post-test approach. The results of the training showed a significant increase in 20 students majoring in business and motorcycle engineering, with an average of 47% after the post-test, and student satisfaction in this training averaged 3. PKM activities are expected to be important provisions for students later when they enter the world of work.
PENGUATAN KOMPETENSI SISWA SMK MELALUI IMPROVISASI KOMPETENSI BIOGASOLINE Syarifudin, Syarifudin; Suhartana, Suhartana; Sanjaya, Firman Lukman; Fatkhurrozak, Faqih; Susilawati, Susilawati
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 2 (2025): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i2.29964

Abstract

Abstrak: Lulusan vokasi seperti Sekolah Menengah Kejuruan (SMK) menjadi penyumbang terbesar angka pengangguran. Fenomena ini bertolak belakang dengan orientasi pembelajaran yang diterapkan yang menggunakan metode praktikum berbasis project based learning (PBL). SMK Jurusan Teknik Sepeda Motor adalah jurusan yang memiliki potensi penyerapan tenaga kerja terbesar dengan mempertimbangkan fenomena volume kendaraan bermotor yang terus meningkat. Program Pengabdian ini bertujuan meningkatkan kompetensi sepeda motor bagi siswa Teknik Sepeda Motor SMK Muhammadiyah Kramat Kabupaten Tegal. Metode yang digunakan adalah PBL yang diterapkan melalui Workshop propertis bahan bakar dan Workshop Karakteristik bahan bakar. Kegiatan dilaksanakan pada tanggal 21 Juni 2024 bertempat di bengkel Teknik Sepeda Motor SMK Muhammadiyah Kramat Kabupaten Tegal yang diikuti 20 siswa kelas XI. Berdasarkan hasil evaluasi, siswa kelas XI memperoleh peningkatan kompetensi sepeda motor dengan prosentase 20%. Hal ini ditunjukkan dari hasil pengukuran kompetensi awal melaluisi pada PreTest dengan capaian penguasaan sebesar 68% dan meningkat menjadi 88% melalui pengukuran pada evaluasi PostTest. Pemberian materi propertis bahan bakar, performa dan karakteristik bahan bakar yang dilakukan melalui workshop dengan metode PBL terbukti dapat terserap secara maksimal.Abstract: Vocational graduates such as Vocational High Schools (SMK) are the largest contributors to unemployment. This phenomenon is in contrast to the applied learning orientation which uses a practical method based on project based learning (PBL). SMK Motorcycle Engineering Department is a department that has the greatest potential for absorbing labor considering the phenomenon of the increasing volume of motorized vehicles. This Community Service Program aims to improve motorcycle competence for Motorcycle Engineering students at SMK Muhammadiyah Kramat, Tegal Regency. The method used is PBL which is implemented through the Fuel Properties Workshop and Fuel Characteristics Workshop. The activity was carried out on June 21, 2024 at the Motorcycle Engineering workshop of SMK Muhammadiyah Kramat, Tegal Regency which was attended by 20 class XI students. Based on the evaluation results, class XI students obtained an increase in motorcycle competence with a percentage of 20%. This is shown from the results of the initial competency measurement through the PreTest with a mastery achievement of 68% and increasing to 89% through measurements in the PostTest evaluation. The provision of material on fuel properties, performance and fuel characteristics carried out through workshops using the PBL method has proven to be maximally absorbed.
Co-Authors , Muchammad , Suhartana -, Syarifudin Agus Wibowo Alfaqih, Adam Amin Nur Akhmadi, Amin Nur Ardiyanto, Riky Ariyanto, Nur Aidi Aryanto, Nur Aidi Budhi Hendrawan, Andre Eflita Yohana Gunawan Gunawan Gunawan Hendrawan, Andre Budhi Hepatika Zidny Ilmadina Jaya, Firman Lukman Köten, Hasan Khumaidi Usman, Muhamad Kusnadi Lukman Sanjaya, Firman Muchammad Muchammad Muhammad Muhammad mukhamad khumaidi usman Nur Akhmadi, Amin Prasetio, Donny Qurohman, M. Taufik Riyono, Agus Hut Sanjaya, Firman Lukman Saptaryani, Titiek Deasy Satrio, Ryan Ade Setijo Budi, Sigit Sibagariang, Yohanes Sigit Setijo Budi, Sigit Setijo Suhartana Suhartana Suhartana Susilawati, Susilawati Syaiful Syaiful . Syarifudin Syarifudin Syarifudin Tubagus, Akbar Usaman , M. Khumaidi Usman , M. Khumaidi Usman, M. Khumaidi